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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2016	May 09, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Trading Symbol	dea
Entity Registrant Name	Easterly Government Properties, Inc.
Entity Central Index Key	0001622194
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		24,168,379

Combined Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets
Real estate properties, net	$ 797,880	$ 772,007
Cash and cash equivalents	4,380	8,176
Restricted cash	1,521	1,736
Rents receivable	6,629	6,347
Accounts receivable	3,832	2,920
Deferred financing, net	2,511	2,726
Intangible assets, net	115,198	116,585
Prepaid expenses and other assets	2,723	1,509
Total assets	934,674	912,006
Liabilities
Revolving credit facility	184,417	154,417
Mortgage notes payable	83,020	83,744
Intangible liabilities, net	44,081	44,605
Accounts payable and accrued liabilities	10,211	9,346
Total liabilities	321,729	292,112
Equity
Common stock, par value $0.01, 200,000,000 shares authorized, 24,168,379 shares issued and outstanding at March 31, 2016 and December 31, 2015.	241	241
Additional paid-in capital	392,180	391,767
Retained (deficit)	(1,019)	(1,694)
Cumulative dividends	(18,368)	(13,051)
Total stockholders' equity	373,034	377,263
Non-controlling interest in operating partnership	239,911	242,631
Total equity	612,945	619,894
Total liabilities and equity	$ 934,674	$ 912,006

Combined Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	200,000,000	200,000,000
Common Stock, shares issued	24,168,379	24,168,379
Common Stock, shares outstanding	24,168,379	24,168,379

Combined Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenues
Rental income	$ 21,736	$ 9,304
Tenant reimbursements	2,155	776
Other income	80	11
Total revenues	23,971	10,091
Operating expenses
Property operating	4,333	1,730
Real estate taxes	2,368	959
Depreciation and amortization	10,863	4,900
Acquisition costs	333	1,440
Formation expenses		1,594
Corporate general and administrative	3,036	1,572
Fund general and administrative		75
Total expenses	20,933	12,270
Operating income	3,038	(2,179)
Other (expenses) / income
Interest expense, net	(1,929)	(700)
Net unrealized (loss) on investments		(5,122)
Net income (loss)	1,109	(8,001)
Non-controlling interest in operating partnership	(434)	5,116
Net income (loss) available to Easterly Government Properties, Inc.	$ 675	$ (2,885)
Net income (loss) available to Easterly Government Properties, Inc. per share:
Basic	$ 0.03	$ (0.22)
Diluted	$ 0.03	$ (0.22)
Weighted- average common shares outstanding
Basic	24,141,712	13,144,277
Diluted	25,744,824	13,144,277

Combined Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net income (loss)	$ 1,109	$ (8,001)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Depreciation and amortization	10,863	4,900
Straight line rent	(12)	(36)
Amortization of above- / below-market leases	(1,698)	(676)
Amortization of unearned revenue	(23)
Amortization of loan premium / discount	(21)	(12)
Amortization of deferred financing costs	216	116
Contributions to investments		(257)
Net unrealized loss on investments		5,122
Non-cash compensation	699	55
Net change in:
Rents receivable	(253)	(3,858)
Accounts receivable	(912)	(640)
Prepaid expenses and other assets	(964)	(417)
Accounts payable and accrued liabilities	871	2,333
Net cash provided by (used in) operating activities	9,875	(1,371)
Cash flows from investing activities
Real estate acquisitions and deposits	(34,350)	(20,167)
Cash assumed in formation		6,187
Additions to real estate property	(76)	(26)
Restricted cash	215	53
Net cash (used in) investing activities	(34,211)	(13,953)
Cash flows from financing activities
Payment of deferred financing costs		(3,379)
Issuance of common shares		193,545
Repurchase of initial shares		(1)
Proceeds from private placement		75,638
Credit facility draws, net	30,000	30,917
Repayments of mortgage payable	(703)	(334)
Debt payoff		(293,381)
Dividends and distributions paid	(8,757)
Distributions		(5,441)
Payment of offering costs		(1,755)
Net cash provided by (used in) financing activities	20,540	(4,191)
Net (decrease) in cash and cash equivalents	(3,796)	(19,515)
Cash and cash equivalents, beginning of period	8,176	31,437
Cash and cash equivalents, end of period	4,380	11,922
Supplemental disclosure of cash flow information is as follows (amounts in thousands):
Cash paid for interest	1,423	569
Additions to real estate property	$ 25	7
Deferred offering accrued, not paid		207
Deferred financing accrued, not paid		18
Contribution for shares and OPUs		260,687
Western Devcon, Inc [Member]
Supplemental disclosure of cash flow information is as follows (amounts in thousands):
Contribution for shares and OPUs		$ 86,397

Organization and Basis of Presentation	3 Months Ended
Organization and Basis of Presentation	Mar. 31, 2016
Accounting Policies [Abstract]
Organization and Basis of Presentation	1. Organization and Basis of Presentation The information contained in the following notes to the consolidated financial statements is condensed from that which would appear in the annual consolidated financial statements; accordingly, the consolidated financial statements included herein should be reviewed in conjunction with the consolidated financial statements for the fiscal year ended December 31, 2015, and related notes thereto, included in Easterly Government Properties Inc.’s Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC on March 2, 2016. Easterly Government Properties, Inc. (which may be referred to in these financial statements as the “Company,” “we,” “us,” or “our”) is a Maryland corporation that intends to qualify as a real estate investment trust (a “REIT”) under the Internal Revenue Code (the “Code”) commencing with its taxable period ended December 31, 2015. The operations of the Company are carried on primarily through Easterly Government Properties LP (the “Operating Partnership”) and the wholly owned subsidiaries of the Operating Partnership. We are an internally managed REIT, focused primarily on the acquisition, development, and management of Class A commercial properties that are leased to U.S. Government agencies that serve essential functions. We generate substantially all of our revenue by leasing our properties to such agencies through the U.S. General Services Administration (the “GSA”). Our objective is to generate attractive risk-adjusted returns for our stockholders over the long term through dividends and capital appreciation. As of March 31, 2016, we wholly owned 37 properties in the United States, including 34 properties that were leased primarily to U.S. Government tenant agencies and three properties that were entirely leased to private tenants, encompassing approximately 2.7 million square feet in the aggregate. We focus on acquiring, developing, and managing GSA-leased properties that are essential to supporting the mission of the tenant agency and strive to be a partner of choice for the U.S. Government, working closely with the GSA to meet the needs and objectives of the tenant agency. We were incorporated in Maryland as a corporation on October 9, 2014 and did not have any meaningful operations until the completion of the formation transactions (as defined below) and our initial public offering on February 11, 2015 (the “IPO”). On February 11, 2015, we completed an initial public offering of 13.8 million shares of our common stock at a price to the public of $15.00 per share, including 1.8 million shares sold in connection with the full exercise of the option to purchase additional shares granted to the underwriters, resulting in gross proceeds of $207.0 million. The aggregate net proceeds to the Company after deducting underwriting discounts and commissions and offering expenses payable by the Company, was approximately $191.6 million. The Company contributed the net proceeds from the IPO to the Operating Partnership in exchange for common units representing limited partnership interests in the Operating Partnership (“common units”). In connection with the IPO, we engaged in certain formation transactions (the “formation transactions”) pursuant to which the Operating Partnership acquired (i) 15 properties previously owned by the Easterly Funds (as defined below) in exchange for 3,308,000 shares of common stock and 8,635,714 common units (ii) 14 properties previously owned by Western Devcon, Inc., a private real estate company and a series of related entities beneficially owned by Michael P. Ibe (collectively, “Western Devcon”), in exchange for 5,759,819 common units and (iii) all of the ownership interests in the management entities (as defined below) in exchange for 1,135,406 common units. Concurrent with the IPO, the Company sold an aggregate of 7,033,712 shares of its common stock to the Easterly Funds in a private placement at a price per share of $15.00 without payment of any underwriting fees, discounts or commissions. Our Operating Partnership used the net proceeds received from the offering, private placement and a portion of the borrowings under the senior unsecured revolving credit facility to repay approximately $293.4 million in outstanding indebtedness including applicable repayment costs, defeasance costs, settlement of interest rate swap liabilities and other costs and fees associated with such repayments. Our predecessor (the “Predecessor”) means Easterly Partners, LLC and its consolidated subsidiaries, including (i) all entities or interests in U.S. Government Properties Income and Growth Fund L.P., U.S. Government Properties Income and Growth Fund REIT, Inc. and the related feeder and subsidiary entities (collectively, “Easterly Fund I,”) (ii) all entities or interests in U.S. Government Properties Income and Growth Fund II, LP, USGP II REIT LP, USGP II (Parallel) Fund, LP and their related feeders and subsidiary entities (collectively, “Easterly Fund II” and, together with Easterly Fund I, the “Easterly Funds”) and (iii) the entities that managed the Easterly Funds, (the “management entities”). All of the Company’s assets and its operations are primarily conducted through the Operating Partnership. The Company is the sole general partner of the Operating Partnership. The Company owned 60.9% of the Operating Partnership’s common units at March 31, 2016 and the remaining 39.1% was owned by the Easterly Funds and certain members of management. We believe that we have operated and have been organized in conformity with the requirements for qualification and taxation as a REIT for U.S federal income tax purposes commencing with our taxable year ended December 31, 2015. Principle of Combination and Consolidation The accompanying consolidated financial statements are presented on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and include the accounts of the Company, including Easterly Government Properties TRS, LLC and Easterly Government Services, LLC, and the Operating Partnership. All significant intercompany balances and transactions have been eliminated in consolidation. Upon completion of the IPO and the related formation transactions, the Company succeeded to the operations of the Predecessor. Prior to the IPO, the Predecessor was under the control of Darrell W. Crate, the Chairman of our board of directors. These financial statements reflect the consolidated equity ownership structure of the Company as if the IPO and the formation transactions related to the Easterly Funds and management entities had been completed as of January 1, 2014. The formation transactions related to the Easterly Funds and the management entities were accounted for at carryover basis due to the existence of common control. Prior to the IPO, the Easterly Funds, as controlled by the Predecessor, qualified as investment companies pursuant to ASC 946 Financial Services – Investment Companies and, as a result, the Predecessor’s consolidated financial statements accounted for the Easterly Funds using specialized investment company accounting based on fair value. Subsequent to the IPO, as the properties contributed to us from the Easterly Funds are no longer held by funds that qualify for investment company accounting, we made a shift, in accordance with GAAP, to account for the properties contributed by the Easterly Funds using historical cost accounting instead of investment company accounting, resulting in a significant change in the presentation of our consolidated financial statements following the formation transactions. The contribution of the Western Devcon properties in the formation transactions has been accounted for as a business combination using the acquisition method of accounting and recognized at the estimated fair value of acquired assets and assumed liabilities on the date of such contribution. Due to the timing of the IPO and the formation transactions, the Company’s financial condition as of December 31, 2015 and results of operations for the three months ended March 31, 2015 reflect the financial condition and results of operations of the Predecessor combined with the Company for the period prior to February 11, 2015, and the Company’s consolidated results for the period from February 11, 2015 through December 31, 2015. Basis of Presentation The condensed consolidated financial statements included herein are unaudited; however, they include all adjustments (consisting only of normal recurring adjustments) which, in the opinion of management, are necessary to state fairly the consolidated financial position of the Company at March 31, 2016, and the consolidated results of operations and the consolidated cash flows for the three months ended March 31, 2016 and 2015. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. The results of operations for the interim periods presented are not necessarily indicative of the results to be expected for the full year. The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Summary of Significant Accounting Policies	3 Months Ended
Summary of Significant Accounting Policies	Mar. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies The significant accounting policies used in the preparation of the Company's condensed consolidated financial statements, both pre-IPO and post-IPO, are disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. Recently Adopted Accounting Pronouncements On January 1, 2016, the Company adopted accounting guidance under Accounting Standards Codification (ASC) Topic 810, "Consolidation,” modifying the analysis it must perform to determine whether it should consolidate certain types of legal entities. The guidance does not amend the existing disclosure requirements for variable interest entities (“VIEs”) or voting interest model entities. The guidance, however, modified the requirements to qualify under the voting interest model. Under the revised guidance, the Operating Partnership will be a variable interest entity of the Company. As the Operating Partnership is already consolidated in the balance sheets of the Company, the identification of this entity as a variable interest entity has no impact on the consolidated financial statements of the Company. There were no other legal entities qualifying under the scope of the revised guidance that were consolidated as a result of the adoption. In addition, there were no other voting interest entities under prior existing guidance determined to be variable interest entities under the revised guidance. On January 1, 2016, the Company adopted and retrospectively applied ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” As a result all debt issuance costs paid to third parties, other than the lender, incurred to issue mortgage debt are presented on the balance sheet as a direct deduction from the carrying value. Debt issuance costs related to a credit facility will continue to be presented as an asset on the balance sheet. On January 1, 2016, the Company adopted ASU 2015 – 16, Simplifying the Accounting for Measurement Period Adjustments (Topic 805), which addresses provisional amounts for items in a business combination for which the accounting is incomplete by the end of the reporting period. Recent Accounting Pronouncements Not Yet Adopted In February 2016, the Financial Accounting Standards Board (FASB) issued ASU No. 2016-02, Leases, which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for in the same manner as operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. The Company is in the process of evaluating the impact of this new guidance. In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, which identifies areas for simplification involving several aspects of accounting for share-based payment transactions. The new guidance allows for entities to make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. In addition, the guidance allows employers to withhold shares to satisfy minimum statutory tax withholding requirements up to the employees’ maximum individual tax rate without causing the award to be classified as a liability. The guidance also stipulates that cash paid by an employer to a taxing authority when directly withholding shares for tax-withholding purposes should be classified as a financing activity on the statement of cash flows. ASU No. 2016-09 is effective for reporting periods beginning after December 15, 2016. The Company is in the process of evaluating the impact of this new guidance.

Real Estate and Intangibles

3 Months Ended

Mar. 31, 2016

Real Estate [Abstract]

Real Estate and Intangibles

3. Real Estate and Intangibles

During the three months ended March 31, 2016, we acquired one property, ICE – Albuquerque for an aggregate purchase price of $34.1 million. We allocated the purchase price of this acquisition based on the estimated fair values of the acquired assets and assumed liabilities as follows (dollars in thousands):

	Total
Real estate
Land	$	3,062
Building		25,328
Acquired tenant improvements		2,873
Total real estate		31,263
Intangible assets
In-place leases		3,432
Acquired leasing commissions		931
Total intangible assets		4,363
Intangible liabilities
Below-market leases		(1,526	)
Total intangible liabilities		(1,526	)
Purchase price	$	34,100

We did not assume any debt upon acquisition of this property. The fair value of the assets acquired and liabilities assumed in 2016 are preliminary as we continue to finalize their acquisition date fair value determination.

The intangible assets and liabilities of this property have an aggregate weighted average amortization period of 10.79 years as of March 31, 2016.

During the three months ended March 31, 2016, we included $0.3 million of revenues and $0.1 million of net income in our consolidated statement of operations related to the property acquired. During the three months ended March 31, 2016, we incurred $0.3 million of acquisition-related costs associated with the property acquisition.

Pro Forma Financial Information

The unaudited pro forma financial information set forth below presents results for the three months ended March 31, 2016 and 2015 as if the formation transactions and the acquisitions of DOE – Lakewood, AOC – Aberdeen, ICE – Otay, DEA – Pleasanton, USCIS – Lincoln, DEA – Dallas Lab and FBI – Richmond had occurred on January 1, 2014 and the ICE – Albuquerque acquisition had occurred on January 1, 2015. The pro forma information is not necessarily indicative of the results that actually would have occurred nor does it intend to indicate future operating results (dollars in thousands):

	For the three months ended March 31,
Proforma (unaudited)	2016		2015
Total rental revenue	$	24,342	$	23,773
Net income (loss) ⁽¹⁾		1,214		1,293

(1)

The net income for the three months ended March 31, 2016 excludes $0.3 million of property acquisition costs. Additionally, the net income for the three months ended March 31, 2015 was adjusted to include these acquisition costs and exclude the $3.0 million of property acquisition and formation costs incurred during the three months ended March 31, 2015.

Real estate and intangibles consisted of the following as of March 31, 2016 (dollars in thousands):

	Total
Real estate
Land	$	100,961
Building		681,234
Acquired tenant improvements		37,739
Accumulated amortization		(22,054	)
Total Real Estate	$	797,880
Intangible assets
In-place leases	$	107,351
Acquired leasing commissions		21,166
Above market leases		10,631
Accumulated amortization		(23,950	)
Total Intangible assets	$	115,198
Intangible liabilities
Below market leases	$	(52,226	)
Accumulated amortization		8,145
Total Intangible liabilities	$	(44,081	)

Debt

3 Months Ended

Mar. 31, 2016

Debt Disclosure [Abstract]

Debt

4. Debt

At March 31, 2016, our borrowings consisted of the following (dollars in thousands):

	Total
Senior unsecured revolving credit facility	$	184,417
Mortgage debt		83,020
Total	$	267,437

a. Senior Unsecured Revolving Credit Facility

We have a $400.0 million senior unsecured revolving credit facility with an accordion feature that provides us with additional capacity, subject to the satisfaction of customary terms and conditions, of up to $250.0 million, for a total facility size of not more than $650.0 million.

As of March 31, 2016, the interest rate payable on borrowings under our senior unsecured revolving credit facility was 1.84% and the weighted average annual interest rate for borrowings under our senior unsecured revolving credit facility was 1.83% and 1.58% for the three months ended March 31, 2016 and 2015, respectively. As of March 31, 2016, we had $184.4 million outstanding and $215.6 million available under our senior unsecured revolving credit facility and recognized $0.2 million in accumulated amortization of deferred financing costs. As of March 31, 2016, the fair value of our revolving credit facility approximated carrying value.

b. Mortgage Debt

The table below provides a summary of our mortgage debt at March 31, 2016 (dollars in thousands):

Property	Fixed/ Floating	Contractual Interest Rate			Effective Interest Rate			Maturity Date	Principal Balance		Premium/ Discount			Deferred Financing			Carrying Value
CBP - Savannah	Fixed		3.40	%		4.12	%	July 2033	$	15,414	$	(834	)	$	—		$	14,580
ICE - Charleston	Fixed		4.21	%		3.93	%	January 2027		21,729		392			—			22,121
MEPCOM - Jacksonville	Fixed		4.41	%		3.89	%	October 2025		12,286		311			—			12,597
USFS II - Albuquerque	Fixed		4.46	%		3.92	%	July 2026		17,407		656			—			18,063
DEA - Pleasanton	Floating	LIBOR + 150bps				1.80	%	October 2023		15,700		—			(41	)		15,659
Total									$	82,536	$	525		$	(41	)	$	83,020

At March 31, 2016, the fair value of our mortgage debt was determined by discounting future contractual principal and interest payments using prevailing market rates. We deem the fair value measurement of our debt instruments as a Level 3 measurement. At March 31, 2016 the fair value of our mortgage debt was $84.0 million.

Equity

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Equity

5. Equity

The following table summarizes the changes in our stockholders equity for the three months ended March 31, 2016 and 2015 (dollars in thousands):

	Shares			Common Shares Par Value		Additional Paid-in Capital			Retained (deficit)			Distributions in Excess of Earnings			Non- controlling Interest in Operating Partnership			Member Capital/ (Deficit)			Non- controlling Interests			Total Equity
Three months ended March 31, 2016
Balance at December 31, 2015		24,168,379		$	241	$	391,767		$	(1,694	)	$	(13,051	)	$	242,631		$	—		$	—		$	619,894
Stock based compensation					—		81			—			—			618			—			—			699
Dividends and distributions paid					—		—			—			(5,317	)		(3,440	)		—			—			(8,757	)
Net income					—		—			675			—			434			—			—			1,109
Allocation of NCI in Operating Partnership					—		332			—			—			(332	)		—			—			—
Balance at March 31, 2016		24,168,379		$	241	$	392,180		$	(1,019	)	$	(18,368	)	$	239,911		$	—		$	—		$	612,945
Three months ended March 31, 2015
Balance at December 31, 2014		1,000		$	—	$	1		$	—		$	—		$	—		$	13,336		$	283,847		$	297,184
Distributions					—		—			—			—			—			(9	)		(5,432	)		(5,441	)
Exchange of members’ capital and non controlling interests for OP units and shares		3,308,000			33		67,312			—			—			194,530			(12,738	)		(249,137	)		—
Public offering		13,800,000			138		191,445			—			—			—			—			—			191,583
Proceeds of private placement		7,033,712			70		105,435			—			—			—			(589	)		(29,278	)		75,638
Contribution of Western Devcon Properties for OP units					—		—			—			—			86,397			—			—			86,397
Stock based compensation					—		55			—			—			—			—			—			55
Grant of unvested restricted stock		26,667			—		—			—			—			—			—			—			—
Buyback of common stock		(1,000	)		—		(1	)		—			—			—			—			—			(1	)
Net loss					—		—			(2,885	)		—			(5,116	)		—			—			(8,001	)
Allocation of NCI in OP					—		26,539			—			—			(26,539	)		—			—			—
Balance at March 31, 2015		24,168,379		$	241	$	390,786		$	(2,885	)	$	—		$	249,272		$	—		$	—		$	637,414

Our board of directors approved the issuance of 891,000 LTIP units on May 6, 2015 and 40,000 LTIP units on February 26, 2016 to members of management under a long-term incentive plan. Earned awards (if any) will vest 50% on February 15, 2018 and 50% on February 6, 2019, subject to the Company achieving certain absolute and relative total shareholder returns and management’s continued employment. Vesting will be accelerated in the event of a change in control, termination of employment by the Company without cause, or termination of employment by the award recipient for good reason, death, disability or retirement. If there is a change of control prior to February 15, 2018, earned awards will be calculated based on total shareholder return performance up to the date of the change of control. The LTIP unit awards (i) are subject to forfeiture to the extent awards are not earned and (ii) prior to the performance measurement date are only entitled to one-tenth (10%) of the regular quarterly distributions payable on common units. The Company measures the LTIP unit awards at the fair value on date of grant.

A summary of our non-vested common share awards at March 31, 2016 is as follows:

	Restricted Shares		Restricted Shares Weighted average grant date fair value		LTIP Units			LTIP Units Weighted average grant date fair value
Outstanding, December 31, 2015		26,667	$	15.00		891,000		$	8.67
Vested		—		—		—			—
Granted		—		—		40,000			14.15
Forfeited		—		—		(5,000	)		8.67
Outstanding, March 31, 2016		26,667	$	15.00		926,000		$	8.91

We recognized $0.7 million in compensation expense related to the restricted common stock and the LTIP unit awards for the three months ended March 31, 2016. As of March 31, 2016 unrecognized compensation expense for both awards was $6.1 million, which will be amortized over the vesting period.

We valued our non-vested restricted share award issued in 2015 at the grant date fair value, which was the market price of our shares of common shares.

For the LTIP unit awards issued in 2016, we used a Monte Carlo Simulation (risk-neutral approach) to determine the number of shares that may be issued pursuant to the award. We utilized a risk-free rate of 0.7%, derived from the Treasury note yield as of the grant date. Since the Company has a limited amount of operating history, the expected volatility assumption of 20.0% was derived from the observed historical volatility of the common stock prices of a select group of peer companies within the REIT industry. Based on the selected dividend yields of guideline companies and expected dividend levels, we utilized an expected dividend yield of 5.5%.

No additional shares of common stock or options were issued under the 2015 Equity Incentive Plan as of March 31, 2016.

On May 4, 2016, our board of directors declared a dividend for the first quarter of 2016 in the amount of $0.23 per share of common stock and per common unit of our operating partnership, outstanding to stockholders and common unit holders of record as of the close of business on June 8, 2016. Our board of directors also declared a dividend for the first quarter of 2016 for each LTIP unit in an amount equal to 10% of the dividend paid per common unit of our operating partnership. Such dividends are to be paid on June 23, 2016.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Number Topic 4
-Section E

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
-Section C

+ Details

Earnings Per Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Earnings Per Share

6. Earnings Per Share

Basic earnings or loss per share of common stock (“EPS”) is calculated by dividing net income or loss attributable to common stockholders by the weighted average shares of common stock outstanding for the periods presented. Diluted EPS is computed after adjusting the basic EPS computation for the effect of dilutive common equivalent shares outstanding during the periods presented. Unvested restricted shares and LTIP units are considered participating securities which require the use of the two-class method for the computation of basic and diluted earnings per share. The following table sets for the computation of the Company’s basic and diluted earnings per share of common stock for the three months ended March 31, 2016 and 2015 (amounts in thousands, except per share amounts):

	For the three months ended			For the three months ended
	March 31, 2016			March 31, 2015
Numerator
Net income (loss)	$	1,109		$	(8,001	)
Less: Non-controlling interest in operating partnership		(434	)		5,116
Net income (loss) available to Easterly Government Properties, Inc.		675			(2,885	)
Less: Dividends on participating securities		(26	)		—
Net income (loss) available to common stockholders	$	649		$	(2,885	)
Denominator for basic EPS		24,141,712			13,144,277
Dilutive effect of share-based compensation awards		22,842			—
Dilutive effect of LTIP units		1,580,270			—
Denominator for diluted EPS		25,744,824			13,144,277
Basic EPS	$	0.03		$	(0.22	)
Diluted EPS	$	0.03		$	(0.22	)

Operating Leases

3 Months Ended

Mar. 31, 2016

Leases [Abstract]

Operating Leases

7. Operating Leases

Our rental properties are subject to generally non-cancelable operating leases generating future minimum contractual rent payments due from tenants. As of March 31, 2016, future non-cancelable minimum contractual rent payments are as follows (dollars in thousands):

	Payments due by period
	Total		2016		2017		2018		2019		2020		Thereafter
Operating Leases
Minimum lease payments	$	473,328		48,184		63,122		60,597		54,759		49,022		197,644

The Company’s consolidated properties were 100% occupied by 19 tenants at March 31, 2016. We recognized $20.0 million and $8.6 million in rental income attributable to base rent for the three months ended March 31, 2016 and 2015, respectively and recorded a straight-line adjustment of less than $0.1 million for the three months ended March 31, 2016 and 2015. We also recognized $1.7 million and $0.7 million in rental income attributable to the amortization of our above- and below-market leases for the three months ended March 31, 2016 and 2015, respectively.

- Definition

The entire disclosure for lessor entity's leasing arrangements for operating, capital and leveraged leases.

+ References + Details

Concentrations Risk	3 Months Ended
Concentrations Risk	Mar. 31, 2016
Risks And Uncertainties [Abstract]
Concentrations Risk	8. Concentrations Risk Concentrations of credit risk arise for the Company when multiple tenants of the Company are engaged in similar business activities, are located in the same geographic region or have similar economic features that impact in a similar manner their ability to meet contractual obligations, including those to the Company. The Company regularly monitors its tenant base to assess potential concentrations of credit risk. As stated in Note 1 above, the Company leases commercial space to the U.S. Government through the GSA or other federal agencies or nongovernmental tenants. At March 31, 2016, the GSA and other federal agency accounted for approximately 96.3% of rental income and non-governmental tenants accounted for the remaining approximately 3.7%. Thirteen of our 37 properties are located in California, accounting for approximately 23.0% of our total rentable square feet and approximately 30.8% of our total annualized lease income as of March 31, 2016. To the extent that weak economic or real estate conditions or natural disasters affect California more severely than other areas of the country, our business, financial condition and results of operations could be significantly impacted.

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	9. Subsequent Events For its consolidated financial statements as of March 31, 2016, the Company evaluated subsequent events and noted no significant events other than the dividends declared by the board of directors for the first quarter of 2016 (see Note 5).

Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2016
Accounting Policies [Abstract]
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements On January 1, 2016, the Company adopted accounting guidance under Accounting Standards Codification (ASC) Topic 810, "Consolidation,” modifying the analysis it must perform to determine whether it should consolidate certain types of legal entities. The guidance does not amend the existing disclosure requirements for variable interest entities (“VIEs”) or voting interest model entities. The guidance, however, modified the requirements to qualify under the voting interest model. Under the revised guidance, the Operating Partnership will be a variable interest entity of the Company. As the Operating Partnership is already consolidated in the balance sheets of the Company, the identification of this entity as a variable interest entity has no impact on the consolidated financial statements of the Company. There were no other legal entities qualifying under the scope of the revised guidance that were consolidated as a result of the adoption. In addition, there were no other voting interest entities under prior existing guidance determined to be variable interest entities under the revised guidance. On January 1, 2016, the Company adopted and retrospectively applied ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” As a result all debt issuance costs paid to third parties, other than the lender, incurred to issue mortgage debt are presented on the balance sheet as a direct deduction from the carrying value. Debt issuance costs related to a credit facility will continue to be presented as an asset on the balance sheet. On January 1, 2016, the Company adopted ASU 2015 – 16, Simplifying the Accounting for Measurement Period Adjustments (Topic 805), which addresses provisional amounts for items in a business combination for which the accounting is incomplete by the end of the reporting period.
Recent Accounting Pronouncements Not Yet Adopted	Recent Accounting Pronouncements Not Yet Adopted In February 2016, the Financial Accounting Standards Board (FASB) issued ASU No. 2016-02, Leases, which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for in the same manner as operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. The Company is in the process of evaluating the impact of this new guidance. In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, which identifies areas for simplification involving several aspects of accounting for share-based payment transactions. The new guidance allows for entities to make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. In addition, the guidance allows employers to withhold shares to satisfy minimum statutory tax withholding requirements up to the employees’ maximum individual tax rate without causing the award to be classified as a liability. The guidance also stipulates that cash paid by an employer to a taxing authority when directly withholding shares for tax-withholding purposes should be classified as a financing activity on the statement of cash flows. ASU No. 2016-09 is effective for reporting periods beginning after December 15, 2016. The Company is in the process of evaluating the impact of this new guidance.

Real Estate and Intangibles (Tables)

3 Months Ended

Mar. 31, 2016

Real Estate [Abstract]

Fair Values of Assets Acquired and Liabilities Assumed

	Total
Real estate
Land	$	3,062
Building		25,328
Acquired tenant improvements		2,873
Total real estate		31,263
Intangible assets
In-place leases		3,432
Acquired leasing commissions		931
Total intangible assets		4,363
Intangible liabilities
Below-market leases		(1,526	)
Total intangible liabilities		(1,526	)
Purchase price	$	34,100

Proforma Financial Information of Future Operating Results

The pro forma information is not necessarily indicative of the results that actually would have occurred nor does it intend to indicate future operating results (dollars in thousands):

	For the three months ended March 31,
Proforma (unaudited)	2016		2015
Total rental revenue	$	24,342	$	23,773
Net income (loss) ⁽¹⁾		1,214		1,293

Schedule of Real Estate and Intangibles

Real estate and intangibles consisted of the following as of March 31, 2016 (dollars in thousands):

	Total
Real estate
Land	$	100,961
Building		681,234
Acquired tenant improvements		37,739
Accumulated amortization		(22,054	)
Total Real Estate	$	797,880
Intangible assets
In-place leases	$	107,351
Acquired leasing commissions		21,166
Above market leases		10,631
Accumulated amortization		(23,950	)
Total Intangible assets	$	115,198
Intangible liabilities
Below market leases	$	(52,226	)
Accumulated amortization		8,145
Total Intangible liabilities	$	(44,081	)

Debt (Tables)

3 Months Ended

Mar. 31, 2016

Summary of Borrowings

At March 31, 2016, our borrowings consisted of the following (dollars in thousands):

	Total
Senior unsecured revolving credit facility	$	184,417
Mortgage debt		83,020
Total	$	267,437

Mortgage Debt [Member]

Summary of Mortgage Debt

The table below provides a summary of our mortgage debt at March 31, 2016 (dollars in thousands):

Property	Fixed/ Floating	Contractual Interest Rate			Effective Interest Rate			Maturity Date	Principal Balance		Premium/ Discount			Deferred Financing			Carrying Value
CBP - Savannah	Fixed		3.40	%		4.12	%	July 2033	$	15,414	$	(834	)	$	—		$	14,580
ICE - Charleston	Fixed		4.21	%		3.93	%	January 2027		21,729		392			—			22,121
MEPCOM - Jacksonville	Fixed		4.41	%		3.89	%	October 2025		12,286		311			—			12,597
USFS II - Albuquerque	Fixed		4.46	%		3.92	%	July 2026		17,407		656			—			18,063
DEA - Pleasanton	Floating	LIBOR + 150bps				1.80	%	October 2023		15,700		—			(41	)		15,659
Total									$	82,536	$	525		$	(41	)	$	83,020

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 1
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

+ Details

Equity (Tables)

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Summary of Changes In Stockholders Equity

The following table summarizes the changes in our stockholders equity for the three months ended March 31, 2016 and 2015 (dollars in thousands):

	Shares			Common Shares Par Value		Additional Paid-in Capital			Retained (deficit)			Distributions in Excess of Earnings			Non- controlling Interest in Operating Partnership			Member Capital/ (Deficit)			Non- controlling Interests			Total Equity
Three months ended March 31, 2016
Balance at December 31, 2015		24,168,379		$	241	$	391,767		$	(1,694	)	$	(13,051	)	$	242,631		$	—		$	—		$	619,894
Stock based compensation					—		81			—			—			618			—			—			699
Dividends and distributions paid					—		—			—			(5,317	)		(3,440	)		—			—			(8,757	)
Net income					—		—			675			—			434			—			—			1,109
Allocation of NCI in Operating Partnership					—		332			—			—			(332	)		—			—			—
Balance at March 31, 2016		24,168,379		$	241	$	392,180		$	(1,019	)	$	(18,368	)	$	239,911		$	—		$	—		$	612,945
Three months ended March 31, 2015
Balance at December 31, 2014		1,000		$	—	$	1		$	—		$	—		$	—		$	13,336		$	283,847		$	297,184
Distributions					—		—			—			—			—			(9	)		(5,432	)		(5,441	)
Exchange of members’ capital and non controlling interests for OP units and shares		3,308,000			33		67,312			—			—			194,530			(12,738	)		(249,137	)		—
Public offering		13,800,000			138		191,445			—			—			—			—			—			191,583
Proceeds of private placement		7,033,712			70		105,435			—			—			—			(589	)		(29,278	)		75,638
Contribution of Western Devcon Properties for OP units					—		—			—			—			86,397			—			—			86,397
Stock based compensation					—		55			—			—			—			—			—			55
Grant of unvested restricted stock		26,667			—		—			—			—			—			—			—			—
Buyback of common stock		(1,000	)		—		(1	)		—			—			—			—			—			(1	)
Net loss					—		—			(2,885	)		—			(5,116	)		—			—			(8,001	)
Allocation of NCI in OP					—		26,539			—			—			(26,539	)		—			—			—
Balance at March 31, 2015		24,168,379		$	241	$	390,786		$	(2,885	)	$	—		$	249,272		$	—		$	—		$	637,414

Summary of Non-vested Common Share Awards

A summary of our non-vested common share awards at March 31, 2016 is as follows:

	Restricted Shares		Restricted Shares Weighted average grant date fair value		LTIP Units			LTIP Units Weighted average grant date fair value
Outstanding, December 31, 2015		26,667	$	15.00		891,000		$	8.67
Vested		—		—		—			—
Granted		—		—		40,000			14.15
Forfeited		—		—		(5,000	)		8.67
Outstanding, March 31, 2016		26,667	$	15.00		926,000		$	8.91

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Summary of Basic and Diluted Earnings Per Common Share

The following table sets for the computation of the Company’s basic and diluted earnings per share of common stock for the three months ended March 31, 2016 and 2015 (amounts in thousands, except per share amounts):

	For the three months ended			For the three months ended
	March 31, 2016			March 31, 2015
Numerator
Net income (loss)	$	1,109		$	(8,001	)
Less: Non-controlling interest in operating partnership		(434	)		5,116
Net income (loss) available to Easterly Government Properties, Inc.		675			(2,885	)
Less: Dividends on participating securities		(26	)		—
Net income (loss) available to common stockholders	$	649		$	(2,885	)
Denominator for basic EPS		24,141,712			13,144,277
Dilutive effect of share-based compensation awards		22,842			—
Dilutive effect of LTIP units		1,580,270			—
Denominator for diluted EPS		25,744,824			13,144,277
Basic EPS	$	0.03		$	(0.22	)
Diluted EPS	$	0.03		$	(0.22	)

Operating Leases (Tables)

3 Months Ended

Mar. 31, 2016

Leases [Abstract]

Summary of Future Non Cancellable Minimum Contractual Rent Payments

	Payments due by period
	Total		2016		2017		2018		2019		2020		Thereafter
Operating Leases
Minimum lease payments	$	473,328		48,184		63,122		60,597		54,759		49,022		197,644

Organization and Basis of Presentation - Additional Information (Detail) $ / shares in Units, $ in Thousands, ft² in Millions		3 Months Ended
	Feb. 11, 2015 USD ($) Property $ / shares shares	Mar. 31, 2016 ft² Property	Mar. 31, 2015 USD ($)
Organization And Significant Accounting Policies [Line Items]
Gross proceeds from initial public offering \| $	$ 207,000
Debt payoff \| $	$ 293,381		$ 293,381
Outstanding common units of partnership interest owned percentage		60.90%
Noncontrolling interest, ownership percentage by noncontrolling owners		39.10%
Western Devcon, Inc [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties \| Property	14
Number of stock units exchanged	5,759,819
Management Entities [Member]
Organization And Significant Accounting Policies [Line Items]
Number of stock units exchanged	1,135,406
Easterly Funds [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties \| Property	15
Common stock shares exchanged	3,308,000
Number of stock units exchanged	8,635,714
IPO [Member]
Organization And Significant Accounting Policies [Line Items]
Shares issued, number of shares	13,800,000
Par value per share \| $ / shares	$ 15.00
Net proceeds from initial public offering \| $	$ 191,600
Over-Allotment Option [Member]
Organization And Significant Accounting Policies [Line Items]
Shares issued, number of shares	1,800,000
Private Placement [Member]
Organization And Significant Accounting Policies [Line Items]
Shares issued, number of shares	7,033,712
Shares issued, price per share \| $ / shares	$ 15.00
Wholly Owned Properties [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties \| Property		37
Aggregate area of land \| ft²		2.7
Wholly Owned Properties [Member] \| Government [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties \| Property		34
Wholly Owned Properties [Member] \| Private Tenants [Member]
Organization And Significant Accounting Policies [Line Items]
Number of properties \| Property		3

Real Estate and Intangibles - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Property	Mar. 31, 2015 USD ($)
Real Estate Properties [Line Items]
Net loss/income	$ 675	$ (2,885)
Acquisition-related costs	333	$ 1,440
Consolidated Properties [Member]
Real Estate Properties [Line Items]
Revenues	300
Net loss/income	$ 100
ICE - Albuquerque [Member]
Real Estate Properties [Line Items]
Number of properties \| Property	1
Purchase price	$ 34,100
Weighted average amortization period	10 years 9 months 15 days
Acquisition-related costs	$ 300

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Real Estate and Intangibles - Fair Values of Assets Acquired and Liabilities Assumed (Detail) - ICE - Albuquerque [Member] $ in Thousands	Mar. 31, 2016 USD ($)
Business Acquisition [Line Items]
Total real estate	$ 31,263
Total Intangibles	4,363
Total intangible liabilities	(1,526)
Purchase price	34,100
Real Estate Investment [Member]
Business Acquisition [Line Items]
Land	3,062
Building	25,328
Acquired tenant improvements	2,873
In-place leases [Member]
Business Acquisition [Line Items]
Total Intangibles	3,432
Acquired Leasing Commissions [Member]
Business Acquisition [Line Items]
Total Intangibles	931
Below Market Leases [Member]
Business Acquisition [Line Items]
Total intangible liabilities	$ (1,526)

Real Estate and Intangibles - Proforma Financial Information of Future Operating Results (Detail) - USD ($)
$ in Thousands

3 Months Ended

Mar. 31, 2016

Mar. 31, 2015

Real Estate [Abstract]

Total rental revenue

$ 24,342

$ 23,773

Net income (loss)

^[1]

$ 1,214

$ 1,293

[1]

Real Estate and Intangibles - Proforma Financial Information of Future Operating Results (Detail Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
ICE - Albuquerque [Member]
Real Estate Properties [Line Items]
Property acquisition costs	$ 0.3
DOE - Lakewood and AOC - Aberdeen and ICE - Otay and DEA - Pleasanton and USCIS - Lincoln and DEA - Dallas Lab and FBI - Richmond [Member]
Real Estate Properties [Line Items]
Property acquisition and formation costs		$ 3.0

Real Estate and Intangibles - Schedule of Real Estate and Intangibles (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Real estate
Land	$ 100,961
Building	681,234
Acquired tenant improvements	37,739
Accumulated amortization	(22,054)
Total Real Estate	797,880	$ 772,007
Intangible assets
Above market leases	37,739
Accumulated amortization	(23,950)
Total Intangible assets	115,198
Intangible liabilities
Intangible Liabilities, Below market leases	(52,226)
Intangible Liabilities, Accumulated amortization	8,145
Total Intangible liabilities	44,081
In-place leases [Member]
Real estate
Acquired tenant improvements	107,351
Intangible assets
Above market leases	107,351
Acquired Leasing Commissions [Member]
Real estate
Acquired tenant improvements	21,166
Intangible assets
Above market leases	21,166
Above Market Leases [Member]
Real estate
Acquired tenant improvements	10,631
Intangible assets
Above market leases	$ 10,631

Debt - Summary of Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Revolving credit facility	$ 184,417	$ 154,417
Mortgage debt	83,020	$ 83,744
Long term debt, Total	267,437
Senior Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility	$ 184,417

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Debt - Additional Information (Detail) - USD ($)	3 Months Ended
Debt - Additional Information (Detail) - USD ($)	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Feb. 11, 2015
Debt Instrument [Line Items]
Outstanding borrowings	$ 184,417,000		$ 154,417,000
Amortization of deferred financing costs	216,000	$ 116,000
Mortgage Debt [Member]
Debt Instrument [Line Items]
Fair value of debt	$ 84,000,000
Senior Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility current borrowing capacity				$ 400,000,000
Credit facility additional maximum borrowing capacity				250,000,000
Credit facility maximum borrowing capacity				$ 650,000,000
Interest rate payable on borrowings	1.84%
Weighted average annual interest rate	1.83%	1.58%
Outstanding borrowings	$ 184,417,000
Amount available under revolving credit facility	215,600,000
Amortization of deferred financing costs	$ 200,000

Debt - Summary of Mortgage Debt (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Deferred Financing	$ (2,511)	$ (2,726)
Carrying Value	267,437
Mortgage Debt [Member]
Debt Instrument [Line Items]
Principal Balance	82,536
Premium/ Discount	525
Deferred Financing	(41)
Carrying Value	$ 83,020
Mortgage Debt [Member] \| CBP Savannah [Member]
Debt Instrument [Line Items]
Fixed/ Floating	Fixed
Interest rate payable on borrowings	3.40%
Effective Interest Rate	4.12%
Maturity Date	Jul. 31, 2033
Principal Balance	$ 15,414
Premium/ Discount	(834)
Carrying Value	$ 14,580
Mortgage Debt [Member] \| ICE Charleston [Member]
Debt Instrument [Line Items]
Fixed/ Floating	Fixed
Interest rate payable on borrowings	4.21%
Effective Interest Rate	3.93%
Maturity Date	Jan. 31, 2027
Principal Balance	$ 21,729
Premium/ Discount	392
Carrying Value	$ 22,121
Mortgage Debt [Member] \| MEPCOM Jacksonville [Member]
Debt Instrument [Line Items]
Fixed/ Floating	Fixed
Interest rate payable on borrowings	4.41%
Effective Interest Rate	3.89%
Maturity Date	Oct. 31, 2025
Principal Balance	$ 12,286
Premium/ Discount	311
Carrying Value	$ 12,597
Mortgage Debt [Member] \| USFS II Albuquerque [Member]
Debt Instrument [Line Items]
Fixed/ Floating	Fixed
Interest rate payable on borrowings	4.46%
Effective Interest Rate	3.92%
Maturity Date	Jul. 31, 2026
Principal Balance	$ 17,407
Premium/ Discount	656
Carrying Value	$ 18,063
Mortgage Debt [Member] \| DEA Pleasanton [Member]
Debt Instrument [Line Items]
Fixed/ Floating	Floating
Interest rate payable on borrowings	LIBOR + 150bps
Effective Interest Rate	1.80%
Maturity Date	Oct. 31, 2023
Principal Balance	$ 15,700
Deferred Financing	(41)
Carrying Value	$ 15,659

Equity - Summary of Changes In Stockholders Equity (Detail) - USD ($) $ / shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Shareholders Equity [Line Items]
Balance	$ 619,894	$ 297,184
Balance (in shares)	24,168,379	1,000
Distributions		$ (5,441)
Exchange of members' capital and non-controlling interests for OP units and shares (in shares)		3,308,000
Public Offering		$ 191,583
Public Offering (in share)		13,800,000
Proceeds of private placement		$ 75,638
Proceeds of private placement (in share)		7,033,712
Contribution of Western Devcon Properties for OP units		$ 86,397
Stock based compensation	$ 699	$ 55
Dividends and distributions paid	(8,757)
Grant of unvested restricted stock (in share)		26,667
Buyback of common stock		$ (1)
Buyback of common stock (in shares)		(1,000)
Net income (loss)	1,109	$ (8,001)
Balance	$ 612,945	$ 637,414
Balance (in shares)	24,168,379	24,168,379
Common Stock Par Value [Member]
Shareholders Equity [Line Items]
Balance (in per share)	$ 241
Exchange of members' capital and non-controlling interests for OP units and shares (Par value)		$ 33
Public Offering Per Share		138
Proceeds Of Private Placement Per Share		70
Balance (in per share)	$ 241	$ 241
Additional Paid-in Capital [Member]
Shareholders Equity [Line Items]
Balance	$ 391,767	$ 1
Exchange of members' capital and non-controlling interests for OP units and shares		67,312
Public Offering		191,445
Proceeds of private placement		105,435
Stock based compensation	81	55
Buyback of common stock		(1)
Allocation of NCI in Operating Partnership	332	26,539
Balance	392,180	390,786
Retained (deficit) [Member]
Shareholders Equity [Line Items]
Balance	(1,694)
Net income (loss)	675	(2,885)
Balance	(1,019)	(2,885)
Distributions in Excess of Earnings [Member]
Shareholders Equity [Line Items]
Balance	(13,051)
Dividends and distributions paid	(5,317)
Balance	(18,368)
Non-controlling Interest in Operating Partnership [Member]
Shareholders Equity [Line Items]
Balance	242,631
Exchange of members' capital and non-controlling interests for OP units and shares		194,530
Contribution of Western Devcon Properties for OP units		86,397
Stock based compensation	618
Dividends and distributions paid	(3,440)
Net income (loss)	434	(5,116)
Allocation of NCI in Operating Partnership	(332)	(26,539)
Balance	$ 239,911	249,272
Member Capital / (Deficit) [Member]
Shareholders Equity [Line Items]
Balance		13,336
Distributions		(9)
Exchange of members' capital and non-controlling interests for OP units and shares		(12,738)
Proceeds of private placement		(589)
Non-controlling Interests [Member]
Shareholders Equity [Line Items]
Balance		283,847
Distributions		(5,432)
Exchange of members' capital and non-controlling interests for OP units and shares		(249,137)
Proceeds of private placement		$ (29,278)

Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	May 04, 2016	Mar. 31, 2016	Feb. 26, 2016	Dec. 31, 2015	May 06, 2015
Stockholders Equity Note Disclosure [Line Items]
Unrecognized compensation expense		$ 6.1
Common Stock, shares issued		24,168,379		24,168,379
Subsequent Event [Member]
Stockholders Equity Note Disclosure [Line Items]
Dividends per share	$ 0.23
Dividends payable, date of record	Jun. 08, 2016
Dividends payable, date to be paid	Jun. 23, 2016
Operating partnership dividend rate percentage	10.00%
2015 Equity Incentive Plan [Member]
Stockholders Equity Note Disclosure [Line Items]
Compensation expense recognized		$ 0.7
Common Stock, shares issued		0
Long Term Incentive Plan [Member]
Stockholders Equity Note Disclosure [Line Items]
Issuing of LTIP units of limited partnership interest			40,000		891,000
Tranche One [Member] \| Long Term Incentive Plan [Member]
Stockholders Equity Note Disclosure [Line Items]
Percentage of shares vest under long term incentive plan					50.00%
Tranche Two [Member] \| Long Term Incentive Plan [Member]
Stockholders Equity Note Disclosure [Line Items]
Percentage of shares vest under long term incentive plan					50.00%

Equity - Summary of Non-vested Common Share Awards (Detail)	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Restricted Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares/Units, Outstanding beginning balance \| shares	26,667
Shares/Units, Outstanding ending balance \| shares	26,667
Weighted average grant date fair value, Outstanding beginning balance \| $ / shares	$ 15.00
Weighted average grant date fair value, Outstanding ending balance \| $ / shares	$ 15.00
Long Term Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares/Units, Outstanding beginning balance \| shares	891,000
Shares/Units, Granted \| shares	40,000
Shares/Units, Forfeited \| shares	5,000
Shares/Units, Outstanding ending balance \| shares	926,000
Weighted average grant date fair value, Outstanding beginning balance \| $ / shares	$ 8.67
Weighted average grant date fair value, Granted \| $ / shares	14.15
Weighted average grant date fair value, Forfeited \| $ / shares	8.67
Weighted average grant date fair value, Outstanding ending balance \| $ / shares	$ 8.91

Earnings Per Share - Summary of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share Basic And Diluted [Line Items]
Net income (loss)	$ 1,109	$ (8,001)
Less: Non-controlling interest	(434)	5,116
Net income (loss) available to Easterly Government Properties, Inc.	675	(2,885)
Less: Dividends on participating securities	(26)
Net income (loss) available to common stockholders	$ 649	$ (2,885)
Denominator for basic EPS	24,141,712	13,144,277
Denominator for diluted EPS	25,744,824	13,144,277
Basic EPS	$ 0.03	$ (0.22)
Diluted EPS	$ 0.03	$ (0.22)
Stock Compensation Plan
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect	22,842
Long Term Incentive Plan [Member]
Earnings Per Share Basic And Diluted [Line Items]
Dilutive effect	1,580,270

Operating Leases - Summary of Future Minimum Rental Payments (Detail) $ in Thousands	Mar. 31, 2016 USD ($)
Leases [Abstract]
Minimum lease payments, Total	$ 473,328
Minimum lease payments, 2016	48,184
Minimum lease payments, 2017	63,122
Minimum lease payments, 2018	60,597
Minimum lease payments, 2019	54,759
Minimum lease payments, 2020	49,022
Minimum lease payments, Thereafter	$ 197,644

Operating Leases - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) Tenants	Mar. 31, 2015 USD ($)
Leases [Abstract]
Number of consolidated properties	100.00%
Rental income attributable to base rent	$ 20,000	$ 8,600
Number of tenants \| Tenants	19
Straight-line rent adjustments	$ 100	100
Amortization of above and below market leases	$ 1,698	$ 676

Concentrations Risk - Additional Information (Detail)	3 Months Ended
Concentrations Risk - Additional Information (Detail)	Mar. 31, 2016 Property
Wholly Owned Properties [Member]
Concentration Risk [Line Items]
Number of properties	37
California [Member]
Concentration Risk [Line Items]
Number of properties	13
Lease Income [Member] \| Credit Concentration Risk [Member] \| California [Member]
Concentration Risk [Line Items]
Percentage of concentrations risk	30.80%
Rentable Square Feet [Member] \| Credit Concentration Risk [Member] \| California [Member]
Concentration Risk [Line Items]
Percentage of concentrations risk	23.00%
General Services Administration And Other Federal Agencies [Member] \| Lease Income [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of concentrations risk	96.30%
Non Governmental Tenants [Member] \| Lease Income [Member] \| Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of concentrations risk	3.70%