Elme Communities (ELME) 10-Q 28 Apr 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 26, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	WASHINGTON REAL ESTATE INVESTMENT TRUST
Entity Central Index Key	104,894
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		76,804,409

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Land	$ 573,315	$ 573,315
Income producing property	2,123,807	2,112,088
Real estate investment property, at cost	2,697,122	2,685,403
Accumulated depreciation and amortization	(680,231)	(657,425)
Net income producing property	2,016,891	2,027,978
Properties under development or held for future development	42,914	40,232
Total real estate held for investment, net	2,059,805	2,068,210
Cash and cash equivalents	15,214	11,305
Restricted cash	1,430	6,317
Rents and other receivables, net of allowance for doubtful accounts of $2,430 and $2,377, respectively	69,038	64,319
Prepaid expenses and other assets	108,622	103,468
Total assets	2,254,109	2,253,619
Liabilities
Notes payable, net	893,424	843,084
Mortgage notes payable, net	97,814	148,540
Lines of credit	123,000	120,000
Accounts payable and other liabilities	50,684	46,967
Dividend payable	0	22,414
Advance rents	11,948	11,750
Tenant security deposits	9,002	8,802
Total liabilities	1,185,872	1,201,557
Shareholders’ equity
Preferred shares; $0.01 par value; 10,000 shares authorized; no shares issued or outstanding	0	0
Shares of beneficial interest, $0.01 par value; 100,000 shares authorized; 75,702 and 74,606 shares issued and outstanding, respectively	757	746
Additional paid in capital	1,400,093	1,368,636
Distributions in excess of net income	(342,020)	(326,047)
Accumulated other comprehensive loss	8,346	7,611
Total shareholders’ equity	1,067,176	1,050,946
Noncontrolling interests in subsidiaries	1,061	1,116
Total equity	1,068,237	1,052,062
Total liabilities and equity	$ 2,254,109	$ 2,253,619

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Rents and other receivables, allowance for doubtful accounts	$ 2,430	$ 2,377
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)	10,000,000	10,000,000
Preferred Stock, Shares Issued (in shares)	0	0
Preferred Stock, Shares Outstanding (in shares)	0	0
Shares of beneficial interest, par value (in dollars per share)	$ 0.01	$ 0.01
Shares of beneficial interest, shares authorized (in shares)	100,000,000	100,000,000
Shares of beneficial interest, shares issued (in shares)	75,702,000	74,606,000
Shares of beneficial interest, shares outstanding (in shares)	75,702,000	74,606,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue
Real estate rental revenue	$ 77,501	$ 77,137
Expenses
Real estate expenses	27,863	28,734
Depreciation and amortization	26,069	26,038
Acquisition costs	0	154
General and administrative	5,626	5,511
Operating Expenses	59,558	60,437
Real estate operating income	17,943	16,700
Other (expense) income
Interest expense	(11,405)	(14,360)
Other income	77	39
Total other income (expense)	(11,328)	(14,321)
Net income	6,615	2,379
Less: Net loss attributable to noncontrolling interests in subsidiaries	19	5
Net income attributable to the controlling interests	$ 6,634	$ 2,384
Basic net income per share:
Net income per share (in dollars per share)	$ 0.09	$ 0.03
Diluted net income per share:
Net income per share (in dollars per share)	$ 0.09	$ 0.03
Weighted average shares outstanding - basic (in shares)	74,854	68,301
Weighted average shares outstanding - diluted (in shares)	74,966	68,488
Dividends declared per share (in dollars per share)	$ 0.30	$ 0.30

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 6,615	$ 2,379
Unrealized gain (loss) on interest rate hedges	735	(3,675)
Comprehensive income (loss)	7,350	(1,296)
Less: Comprehensive loss attributable to noncontrolling interests	19	5
Comprehensive income (loss) attributable to the controlling interests	$ 7,369	$ (1,291)

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Shares of Beneficial Interest at Par Value [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]
Balance (in shares) at Dec. 31, 2016		74,606,000
Balance at Dec. 31, 2016	$ 1,052,062	$ 746	$ 1,368,636	$ (326,047)	$ 7,611	$ 1,050,946	$ 1,116
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to the controlling interests	6,634			6,634		6,634
Net loss attributable to the noncontrolling interests	(19)						(19)
Unrealized gain on interest rate hedge	735				735	735
Distributions to noncontrolling interests	(36)						(36)
Dividends	(22,607)			(22,607)		(22,607)
Equity offerings, net of issuance costs (in shares)		972,000
Equity offerings, net of issuance costs	29,959	$ 10	29,949			29,959
Shares issued under dividend reinvestment program (in shares)		34,770
Shares issued under dividend reinvestment program	1,114	$ 1,100	1,114			1,114
Share grants, net of forfeitures (in shares)		89,000
Share grants, net of share grant amortization, forfeitures and tax withholdings	395	$ 1	394			395
Balance (in shares) at Mar. 31, 2017		75,702,000
Balance at Mar. 31, 2017	$ 1,068,237	$ 757	$ 1,400,093	$ (342,020)	$ 8,346	$ 1,067,176	$ 1,061

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	$ 6,615	$ 2,379
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	26,069	26,038
Provision for losses on accounts receivable	183	441
Share-based compensation expense	1,147	1,546
Amortization of debt premiums, discounts and related financing costs	477	837
Changes in operating other assets	(6,922)	(906)
Changes in operating other liabilities	3,469	1,916
Net cash provided by operating activities	31,038	32,251
Cash flows from investing activities
Capital improvements to real estate	(11,436)	(4,716)
Development in progress	(2,517)	(1,119)
Real estate deposits, net	5,000	12,500
Cash released from replacement reserve escrows, net	4,548	2,309
Non-real estate capital improvements	(575)	(13)
Net cash used in investing activities	(14,980)	(16,039)
Cash flows from financing activities
Line of credit borrowings, net	3,000	110,000
Dividends paid	(45,021)	(41,137)
Principal payments – mortgage notes payable	(50,346)	(84,219)
Proceeds from term loan	50,000	0
Payment of financing costs	(234)	(236)
Distributions to noncontrolling interests	(36)	(91)
Proceeds from dividend reinvestment program	1,114	0
Net proceeds from equity offering	29,959	0
Payment of tax withholdings for restricted share awards	(585)	(779)
Net cash used in financing activities	(12,149)	(16,462)
Net increase (decrease) in cash and cash equivalents	3,909	(250)
Cash and cash equivalents at beginning of period	11,305	23,825
Cash and cash equivalents at end of period	15,214	23,575
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	5,916	8,639
Change in accrued capital improvements and development costs	$ 438	$ 4,214

Nature of Business

Nature of Business	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	NATURE OF BUSINESS Washington Real Estate Investment Trust (“Washington REIT”), a Maryland real estate investment trust, is a self-administered equity real estate investment trust, successor to a trust organized in 1960. Our business consists of the ownership and operation of income-producing real estate properties in the greater Washington metro region. We own a diversified portfolio of office buildings, multifamily buildings and retail centers. Federal Income Taxes We believe that we qualify as a Real Estate Investment Trust (“REIT”) under Sections 856-860 of the Internal Revenue Code and intend to continue to qualify as such. To maintain our status as a REIT, we are, among other things, required to distribute 90% of our REIT taxable income (which is, generally, our ordinary taxable income, with certain modifications), excluding any net capital gains and any deductions for dividends paid to our shareholders on an annual basis. When selling a property, we generally have the option of (a) reinvesting the sales proceeds of property sold, in a way that allows us to defer recognition of some or all taxable gain realized on the sale, (b) distributing gains to the shareholders with no tax to us or (c) treating net long-term capital gains as having been distributed to our shareholders, paying the tax on the gain deemed distributed and allocating the tax paid as a credit to our shareholders. Generally, and subject to our ongoing qualification as a REIT, no provisions for income taxes are necessary except for taxes on undistributed taxable income and taxes on the income generated by our taxable REIT subsidiaries (“TRSs”). Our TRSs are subject to corporate federal and state income tax on their taxable income at regular statutory rates, or as calculated under the alternative minimum tax, as appropriate. As of March 31, 2017 and December 31, 2016 , our TRSs had deferred tax assets of $0.5 million , net of valuation allowances of $2.9 million . As of both March 31, 2017 and December 31, 2016 , our TRSs had net deferred tax liabilities of $0.4 million . These deferred tax liabilities are primarily related to temporary differences in the timing of the recognition of revenue, amortization and depreciation.

Summary of Significant Accounti

Summary of Significant Accounting Policies and Basis of Presentation	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Basis of Presentation	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BASIS OF PRESENTATIONS Significant Accounting Policies We have prepared our consolidated financial statements using the accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2016 . New Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update No. 2017-01, Business Combinations (Topic 805) - Clarifying the Definition of a Business , which adds guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Under the new guidance, a set of transferred assets and activities is not a business when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or group of similar identifiable assets. If a set of transferred assets and activities does not meet this threshold, then an entity must evaluate whether the set meets the requirement that a business include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein. Early adoption of the standard is allowed for transactions that have not been reported in financial statements issued prior to the new standard’s issuance date, and we adopted the standard as of October 1, 2016. Accordingly, the new standard has been applied to the acquisition of Watergate 600, a 309,000 square foot office building in Washington, DC executed on April 4, 2017 (see note 13 ). Prior to the new guidance, this acquisition would have been accounted for as a business combination, but is accounted for as an asset acquisition under the new guidance. Acquisition costs are capitalized in asset acquisitions but expensed in business combinations. Identifiable assets, liabilities assumed and any noncontrolling interests are recognized and measured as of the acquisition date at fair value in a business combination, but are measured by allocating the cost of the acquisition on a relative fair value basis in an asset acquisition. As of March 31, 2017, we had capitalized $0.6 million of costs related to the acquisition of Watergate 600. In November 2016, the FASB issued Accounting Standards Update No. 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash , which requires that restricted cash and cash equivalents be included with cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the consolidated statements of cash flows. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein, with early adoption permitted. We are currently evaluating the impact the new standard may have on Washington REIT’s consolidated financial statements. In August 2016, the FASB issued Accounting Standards Update No. 2016-15, Classification of Certain Cash Receipts and Cash Payments , which provides specific guidance on how cash receipts and payments should be presented and classified in the statement of cash flows for eight specific issues. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein, with early adoption permitted. We are currently evaluating the impact the new standard may have on Washington REIT’s consolidated financial statements. In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Measurement of Credit Losses on Financial Instruments , which requires financial assets measured at an amortized cost basis, including trade receivables, to be presented at the net amount expected to be collected. The new standard is effective for public entities for fiscal years beginning after December 15, 2019 and for interim periods therein with adoption one year earlier permitted. We are currently evaluating the impact the new standard may have on Washington REIT’s consolidated financial statements. In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases (Topic 842) (“ASU 2016-02”) , which amends existing accounting standards for lease accounting, including by requiring lessees to recognize most leases on the balance sheet and making certain changes to lessor accounting. The new standard is effective for public entities for fiscal years beginning after December 15, 2018 and for interim periods therein with early adoption permitted. Upon adoption, for leases in which we are the lessor, the lease contract will be separated into lease and non-lease components in accordance with the provisions outlined within ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). The lease component of the contract will be recognized on a straight-line basis in accordance with ASU 2016-02, while the non-lease component will be recognized under the provisions of ASU 2014-09. For lease contracts with a duration of more than one year in which we are the lessee, the present value of future lease payments will be recognized on our balance sheet as a right-of-use asset and a corresponding lease liability. Also, only direct leasing costs may be capitalized under the new standard, while current accounting standards allow for the capitalization of indirect leasing costs. We are currently evaluating the impact ASU 2016-02 may have on Washington REIT’s consolidated financial statements. In June 2014, the FASB issued ASU 2014-09, which creates a single source of revenue guidance. The new standard provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts to provide goods or services to their customers (unless the contracts are in the scope of other U.S. generally accepted accounting principles (“GAAP”) requirements, such as the leasing literature). The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain nonfinancial assets, such as property and equipment, including real estate. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein. Early adoption is permitted for public entities beginning after December 15, 2016. We intend to adopt the new standard using the modified retrospective method. Upon adoption of ASU 2016-02, the majority of our revenue will be subject to the allocation provisions outlined within the revenue standard. We are currently evaluating the specific implementation requirements for allocating the consideration within our contracts in accordance with ASU 2014-09. We do not expect the new standard to have a material impact on the measurement and recognition of gains and losses on the sale of properties. Principles of Consolidation and Basis of Presentation The accompanying unaudited consolidated financial statements include the consolidated accounts of Washington REIT, our majority-owned subsidiaries and entities in which Washington REIT has a controlling interest, including where Washington REIT has been determined to be a primary beneficiary of a variable interest entity (“VIE”). See note 3 for additional information on the property for which there is a noncontrolling interest. All intercompany balances and transactions have been eliminated in consolidation. We have prepared the accompanying unaudited financial statements pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to those rules and regulations, although we believe that the disclosures made are adequate to make the information presented not misleading. In addition, in the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the results for the periods presented have been included. These unaudited financial statements should be read in conjunction with the financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2016 . Within these notes to the financial statements, we refer to the three months ended March 31, 2017 and March 31, 2016 as the “ 2017 Quarter” and the “ 2016 Quarter,” respectively. Use of Estimates in the Financial Statements The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Real Estate

Real Estate	3 Months Ended
	Mar. 31, 2017
Real Estate [Abstract]
Real Estate	REAL ESTATE Development/Redevelopment We have properties under development/redevelopment and held for current or future development as of March 31, 2017 . In the office segment, we have a redevelopment project at the Army Navy Building, an office property in Washington, DC, to upgrade its common areas and add significant amenities in order to make the property more competitive within its sub-market. As of March 31, 2017 , we had invested $3.4 million in the redevelopment and have placed $1.0 million of the project into service. We expect to place the remainder of the project into service during the second quarter of 2017. In the multifamily segment, we have the Trove, a multifamily development adjacent to The Wellington, and own land held for future multifamily development adjacent to Riverside Apartments. As of March 31, 2017 , we had invested $20.7 million and $17.1 million , including the costs of acquired land, in the Trove and the development adjacent to Riverside Apartments, respectively. In the retail segment, we currently have a redevelopment project to add rentable space at Spring Valley Village. As of March 31, 2017 , we had invested $1.1 million in the redevelopment. Variable Interest Entity In June 2011, we executed a joint venture operating agreement with a real estate development company to develop The Maxwell, a mid-rise multifamily property at 650 North Glebe Road in Arlington, Virginia. Major construction activities at The Maxwell ended during December 2014, and the building became available for occupancy during the first quarter of 2015. Washington REIT is the 90% owner of the joint venture. The real estate development company owns 10% of the joint venture and was responsible for the development and construction of the property. We have determined that The Maxwell joint venture is a VIE primarily based on the fact that the equity investment at risk is not sufficient to permit the entity to finance its activities without additional financial support. We also determined that Washington REIT was the primary beneficiary of the VIE due to the fact that Washington REIT was determined to have a controlling financial interest in the entity. In January 2016, Washington REIT exercised its right to purchase at par The Maxwell’s construction loan from the original third-party lender. Upon the purchase, the construction loan became an intercompany loan payable from the consolidated VIE to Washington REIT that is eliminated in consolidation. As of March 31, 2017 and December 31, 2016 , The Maxwell’s assets were as follows (in thousands): March 31, 2017 December 31, 2016 Land $ 12,851 $ 12,851 Income producing property 37,954 37,949 Accumulated depreciation and amortization (5,127 ) (4,571 ) Other assets 622 456 $ 46,300 $ 46,685 As of March 31, 2017 and December 31, 2016 , The Maxwell’s liabilities were as follows (in thousands): March 31, 2017 December 31, 2016 Mortgage notes payable (1) $ 31,798 $ 31,869 Accounts payable and other liabilities 326 186 Tenant security deposits 98 99 $ 32,222 $ 32,154 (1) The mortgage notes payable balances as of March 31, 2017 and December 31, 2016 are eliminated in consolidation due to the purchase of the loan by Washington REIT in January 2016. Properties Sold and Held for Sale We intend to hold our properties for investment with a view to long-term appreciation, to engage in the business of acquiring, developing and owning our properties, and to make occasional sales of the properties that no longer meet our long-term strategy or return objectives and where market conditions for sale are favorable. The proceeds from the sales may be reinvested into other properties, used to fund development operations or to support other corporate needs, or distributed to our shareholders. Depreciation on these properties is discontinued when classified as held for sale, but operating revenues, other operating expenses and interest continue to be recognized until the date of sale. We did not sell or classify as held for sale any properties during the 2017 Quarter. We sold the following properties in 2016 : Disposition Date Property Name Segment Rentable Square Feet Contract Gain on Sale May 26, 2016 Dulles Station II (1) Office N/A $ 12,100 $ 527 June 27, 2016 Maryland Office Portfolio Transaction I (2) Office 692,000 111,500 23,585 September 22, 2016 Maryland Office Portfolio Transaction II (3) Office 491,000 128,500 77,592 Total 2016 1,183,000 $ 252,100 $ 101,704 (1) Land held for future development and an interest in a parking garage. (2) Maryland Office Portfolio Transaction I consists of 6110 Executive Boulevard, 600 Jefferson Plaza, Wayne Plaza and West Gude Drive. (3) Maryland Office Portfolio Transaction II consists of 51 Monroe Street and One Central Plaza. While the sale of the Maryland Office Portfolio, in the aggregate, constituted an individually significant disposition, the Maryland Office Portfolio does not qualify for presentation and disclosure as a discontinued operation as it does not represent a strategic shift in our operations. Real estate rental revenue and net income for the Maryland Office Portfolio for the three months ended March 31, 2017 and 2016 are as follows: Three Months Ended March 31, 2017 2016 Real estate rental revenue $ — $ 8,430 Net income — 2,726 We do not have significant continuing involvement in the operations of the disposed properties.

Mortgage Notes Payable

Mortgage Notes Payable	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Mortgage Note Payable	MORTGAGE NOTES PAYABLE In February 2017, we prepaid without penalty the remaining $49.6 million of the mortgage note secured by the Army Navy Building.

Unsecured Lines of Credit Payab

Unsecured Lines of Credit Payable	3 Months Ended
	Mar. 31, 2017
Unsecured Debt [Abstract]
Unsecured Lines of Credit Payable	UNSECURED LINES OF CREDIT PAYABLE We have a $600.0 million unsecured revolving credit agreement (“Revolving Credit Facility”) that matures in June 2019 , unless extended pursuant to one or both of the two six months extension options. The Revolving Credit Facility has an accordion feature, which we utilized a portion of in September 2015, as described below, that allows us to increase the facility to $1.0 billion , subject to the extent the lenders agree to provide additional revolving loan commitments or term loans. In September 2015, we entered into a $150.0 million unsecured term loan (“2015 Term Loan”) by executing a portion of the accordion feature under the Revolving Credit Facility. The 2015 Term Loan has a 5.5 year term and currently has an interest rate of one month LIBOR plus 110 basis points, based on Washington REIT’s current unsecured debt ratings. We entered into two interest rate swaps to effectively fix the interest rate at 2.7% (see note 7 ). The Revolving Credit Facility bears interest at a rate of either one month LIBOR plus a margin ranging from 0.875% to 1.55% or the base rate plus a margin ranging from 0.0% to 0.55% (in each case depending upon Washington REIT’s credit rating). The base rate is the highest of the administrative agent’s prime rate, the federal funds rate plus 0.50% and the LIBOR market index rate plus 1.0% . In addition, the Revolving Credit Facility requires the payment of a facility fee ranging from 0.125% to 0.30% (depending on Washington REIT’s credit rating) on the $600.0 million committed capacity, without regard to usage. As of March 31, 2017 , the interest rate on the facility is one month LIBOR plus 1.00% and the facility fee is 0.20% . The amount of the Revolving Credit Facility’s unsecured line of credit unused and available at March 31, 2017 is as follows (in thousands): Committed capacity $ 600,000 Borrowings outstanding (123,000 ) Unused and available $ 477,000 We executed borrowings and repayments on the Revolving Credit Facility during the 2017 Quarter as follows (in thousands): Revolving Credit Facility Balance at December 31, 2016 $ 120,000 Borrowings 90,000 Repayments (87,000 ) Balance at March 31, 2017 $ 123,000

Note Payable (Notes)

Note Payable (Notes)	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Notes Payable	NOTES PAYABLE During 2016, we entered into a seven year, $150.0 million unsecured term loan (“2016 Term Loan”) maturing on July 21, 2023 with a deferred draw period of up to six months commencing on July 22, 2016. The 2016 Term Loan bears interest at a rate of either LIBOR plus a margin ranging from 1.50% to 2.45% or the base rate plus a margin ranging from 0.5% to 1.45% (in each case depending upon Washington REIT’s credit rating). The base rate is the highest of the administrative agent’s prime rate, the federal funds rate plus 0.50% and one-month LIBOR plus 1.0% . The 2016 Term Loan currently has an interest rate of one month LIBOR plus 165 basis points, based on Washington REIT’s current unsecured debt ratings. We borrowed $100.0 million on the term loan in the fourth quarter of 2016, and borrowed the remaining $50.0 million during the 2017 Quarter. We have also previously entered into forward interest rate swaps commencing on March 31, 2017 to effectively fix the interest rate on the 2016 Term Loan at 2.9% (see note 7 ).

Derivatives Instruments

Derivatives Instruments	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	DERIVATIVE INSTRUMENTS On September 15, 2015 , we entered into two interest rate swap arrangements with a total notional amount of $150.0 million to swap the floating interest rate under the 2015 Term Loan (see note 5 ) to an all-in fixed interest rate of 2.7% starting on October 15, 2015 and extending until the maturity of the 2015 Term Loan on March 15, 2021 . On July 22, 2016 , we entered into two forward interest rate swap arrangements with a total notional amount of $150.0 million to swap the floating interest rate under the 2016 Term Loan (see note 6 ) to an all-in fixed interest rate of 2.9% starting on March 31, 2017 and extending until the maturity of the 2016 Term Loan on July 21, 2023 . The interest rate swaps qualify as cash flow hedges and are recorded at fair value in accordance with GAAP, based on discounted cash flow methodologies and observable inputs. We record the effective portion of changes in fair value of the cash flow hedges in other comprehensive income (loss). The resulting unrealized gain (loss) on the effective portions of the cash flow hedges was the only activity in other comprehensive income (loss) during the periods presented in our consolidated financial statements. We assess the effectiveness of our cash flow hedges both at inception and on an ongoing basis. The cash flow hedges were effective for the 2017 Quarter and 2016 Quarter, and therefore hedge ineffectiveness did not impact earnings during the 2017 Quarter and 2016 Quarter. The fair values of the interest rate swaps as of March 31, 2017 and December 31, 2016 , are as follows (in thousands): Fair Value Asset Derivatives Derivative Instrument Aggregate Notional Amount Effective Date Maturity Date March 31, 2017 December 31, 2016 Interest rate swaps $ 150,000 October 15, 2015 March 15, 2021 $ 980 $ 417 Interest rate swaps 150,000 March 31, 2017 July 21, 2023 7,366 7,194 $ 300,000 $ 8,346 $ 7,611 We record interest rate swaps on our consolidated balance sheets with prepaid expenses and other assets when in a net asset position and with accounts payable and other liabilities when in a net liability position. The interest rate swaps have been effective since inception. The net gains or losses on the effective swaps are recognized in other comprehensive income (loss), as follows (in thousands): Three Months Ended March 31, 2017 2016 Unrealized gain (loss) on interest rate hedges $ 735 $ (3,675 ) Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on our variable-rate debt. During the next twelve months, we estimate that an additional $0.5 million will be reclassified as an increase to interest expense. We have agreements with each of our derivative counterparties that contain a provision whereby we could be declared in default on our derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to our default on the indebtedness. As of March 31, 2017 , the fair value of derivatives is in a net asset position of $8.3 million , which includes accrued interest but excludes any adjustment for nonperformance risk. As of March 31, 2017 , we have not posted any collateral related to these agreements. Derivative instruments expose us to credit risk in the event of non-performance by the counterparty under the terms of the interest rate hedge agreement. We believe that we minimize our credit risk on these transactions by dealing with major, creditworthy financial institutions. We monitor the credit ratings of counterparties and our exposure to any single entity, thus minimizing our credit risk concentration.

Fair Value Disclosures

Fair Value Disclosures	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Disclosures	FAIR VALUE DISCLOSURES Assets and Liabilities Measured at Fair Value For assets and liabilities measured at fair value on a recurring basis, quantitative disclosures about the fair value measurements are required to be disclosed separately for each major category of assets and liabilities, as follows: Level 1: Quoted prices in active markets for identical assets Level 2: Significant other observable inputs Level 3: Significant unobservable inputs The only assets or liabilities we had at March 31, 2017 and December 31, 2016 that are recorded at fair value on a recurring basis are the assets held in the Supplemental Executive Retirement Plan (“SERP”), which primarily consist of investments in mutual funds, and the interest rate swaps (see note 7 ). We base the valuations related to the SERP on assumptions derived from significant other observable inputs and accordingly these valuations fall into Level 2 in the fair value hierarchy. The valuation of the interest rate swaps is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each interest rate swap. This analysis reflects the contractual terms of the interest rate swaps, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. To comply with the provisions of ASC 820, we incorporate credit valuation adjustments in the fair value measurements to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk. These credit valuation adjustments were concluded to not be significant inputs for the fair value calculations for the periods presented. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as the posting of collateral, thresholds, mutual puts and guarantees. The valuation of interest rate swaps fall into Level 2 in the fair value hierarchy. The fair values of these assets and liabilities at March 31, 2017 and December 31, 2016 were as follows (in thousands): March 31, 2017 December 31, 2016 Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Assets: SERP $ 1,526 $ — $ 1,526 $ — $ 1,407 $ — $ 1,407 $ — Interest rate swaps $ 8,346 $ — $ 8,346 $ — $ 7,611 $ — $ 7,611 $ — Financial Assets and Liabilities Not Measured at Fair Value The following disclosures of estimated fair value were determined by management using available market information and established valuation methodologies, including discounted cash flow. Many of these estimates involve significant judgment. The estimated fair value disclosed may not necessarily be indicative of the amounts we could realize on disposition of the financial instruments. The use of different market assumptions or estimation methodologies could have an effect on the estimated fair value amounts. In addition, fair value estimates are made at a point in time and thus, estimates of fair value subsequent to March 31, 2017 may differ significantly from the amounts presented. Following is a summary of significant methodologies used in estimating fair values and a schedule of fair values at March 31, 2017 and December 31, 2016 . Cash and Cash Equivalents and Restricted Cash Cash and cash equivalents and restricted cash include cash and commercial paper with original maturities of less than 90 days, which are valued at the carrying value, which approximates fair value due to the short maturity of these instruments (Level 1 inputs). Notes Receivable We acquired a note receivable (“2445 M Street note”) in 2008 with the purchase of 2445 M Street. We estimate the fair value of the 2445 M Street note based on a discounted cash flow methodology using market discount rates (Level 3 inputs). Debt Mortgage notes payable consist of instruments in which certain of our real estate assets are used for collateral. We estimate the fair value of the mortgage notes payable by discounting the contractual cash flows at a rate equal to the relevant treasury rates (with respect to the timing of each cash flow) plus credit spreads estimated through independent comparisons to real estate assets or loans with similar characteristics. Lines of credit payable consist of our bank facility which we use for various purposes including working capital, acquisition funding and capital improvements. The lines of credit advances and term loans with floating interest rates are priced at a specified rate plus a spread. We estimate the market value based on a comparison of the spreads of the advances to market given the adjustable base rate. We estimate the fair value of the notes payable by discounting the contractual cash flows at a rate equal to the relevant treasury rates (with respect to the timing of each cash flow) plus credit spreads derived using the relevant securities’ market prices. We classify these fair value measurements as Level 3 as we use significant unobservable inputs and management judgment due to the absence of quoted market prices. As of March 31, 2017 and December 31, 2016 , the carrying values and estimated fair values of our financial instruments were as follows (in thousands): March 31, 2017 December 31, 2016 Carrying Value Fair Value Carrying Value Fair Value Cash and cash equivalents $ 15,214 $ 15,214 $ 11,305 $ 11,305 Restricted cash 1,430 1,430 6,317 6,317 2445 M Street note receivable 2,166 2,216 2,089 2,173 Mortgage notes payable, net 97,814 100,702 148,540 149,997 Lines of credit 123,000 123,000 120,000 120,000 Notes payable, net 893,424 925,613 843,084 873,516

Stock Based Compensation

Stock Based Compensation	3 Months Ended
	Mar. 31, 2017
Share-based Compensation [Abstract]
Stock Based Compensation	STOCK BASED COMPENSATION Washington REIT maintains short-term (“STIP”) and long-term (“LTIP”) incentive plans that allow for stock-based awards to officers and non-officer employees. Stock based awards are provided to officers and non-officer employees, as well as trustees, under the Washington Real Estate Investment Trust 2016 Omnibus Incentive Plan which allows for awards in the form of restricted shares, restricted share units, options and other awards up to an aggregate of 2,400,000 shares over the ten -year period in which the plan will be in effect. Restricted share units are converted into shares of our stock upon full vesting through the issuance of new shares. Total Compensation Expense Total compensation expense recognized in the consolidated financial statements for all outstanding share based awards was $1.1 million and $1.5 million for the 2017 Quarter and 2016 Quarter, respectively. Restricted Share Awards The total fair values of restricted share awards vested was $1.6 million and $2.0 million for the 2017 Quarter and 2016 Quarter, respectively. The total unvested restricted share awards at March 31, 2017 was 258,759 shares, which had a weighted average grant date fair value of $30.13 per share. As of March 31, 2017 , the total compensation cost related to unvested restricted share awards was $5.8 million , which we expect to recognize over a weighted average period of 28 months.

Earnings per Common Share

Earnings per Common Share	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Earnings per Common Share	EARNINGS PER COMMON SHARE We determine “Basic earnings per share” using the two-class method as our unvested restricted share awards and units have non-forfeitable rights to dividends, and are therefore considered participating securities. We compute basic earnings per share by dividing net income attributable to the controlling interest less the allocation of undistributed earnings to unvested restricted share awards and units by the weighted-average number of common shares outstanding for the period. We also determine “Diluted earnings per share” as the more dilutive of the two-class method or the treasury stock method with respect to the unvested restricted share awards. We further evaluate any other potentially dilutive securities at the end of the period and adjust the basic earnings per share calculation for the impact of those securities that are dilutive. Our diluted earnings per share calculation includes the dilutive impact of our share based awards with performance conditions prior to the grant date and awards with market conditions under the contingently issuable method. The computations of basic and diluted earnings per share for the three months ended March 31, 2017 and 2016 were as follows (in thousands, except per share data): Three Months Ended March 31, 2017 2016 Numerator: Net income $ 6,615 $ 2,379 Net loss attributable to noncontrolling interests in subsidiaries 19 5 Allocation of earnings to unvested restricted share awards (78 ) (90 ) Adjusted net income attributable to the controlling interests $ 6,556 $ 2,294 Denominator: Weighted average shares outstanding – basic 74,854 68,301 Effect of dilutive securities: Employee restricted share awards 112 187 Weighted average shares outstanding – diluted 74,966 68,488 Basic net income attributable to the controlling interests per common share $ 0.09 $ 0.03 Diluted net income attributable to the controlling interests per common share $ 0.09 $ 0.03

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2017
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Segment Information	SEGMENT INFORMATION We have three reportable segments: office, multifamily and retail. Office properties provide office space for various types of businesses and professions. Multifamily properties provide rental housing for individuals and families throughout the greater Washington metro region. Retail properties are typically grocery store-anchored neighborhood centers that include other small shop tenants or regional power centers with several junior box tenants. We evaluate performance based upon net operating income from the combined properties in each segment. Our reportable operating segments are consolidations of similar properties. GAAP requires that segment disclosures present the measure(s) used by the chief operating decision maker for purposes of assessing segments’ performance. Net operating income is a key measurement of our segment profit and loss. Net operating income is defined as segment real estate rental revenue less segment real estate expenses. The following tables present revenues, net operating income, capital expenditures and total assets for the three months ended March 31, 2017 and 2016 from these segments, and reconcile net operating income of reportable segments to net income attributable to the controlling interests as reported (in thousands): Three Months Ended March 31, 2017 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 38,027 $ 15,705 $ 23,769 $ — $ 77,501 Real estate expenses 14,414 3,863 9,586 — 27,863 Net operating income $ 23,613 $ 11,842 $ 14,183 $ — $ 49,638 Depreciation and amortization (26,069 ) General and administrative (5,626 ) Interest expense (11,405 ) Other income 77 Net income 6,615 Less: Net loss attributable to noncontrolling interests in subsidiaries 19 Net income attributable to the controlling interests $ 6,634 Capital expenditures $ 4,955 $ 184 $ 6,297 $ 575 $ 12,011 Total assets $ 1,097,256 $ 348,221 $ 764,732 $ 43,900 $ 2,254,109 Three Months Ended March 31, 2016 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 43,818 $ 15,380 $ 17,939 $ — $ 77,137 Real estate expenses 17,075 4,406 7,253 — 28,734 Net operating income $ 26,743 $ 10,974 $ 10,686 $ — $ 48,403 Depreciation and amortization (26,038 ) Acquisition costs (154 ) General and administrative (5,511 ) Interest expense (14,360 ) Other income 39 Net income 2,379 Less: Net loss attributable to noncontrolling interests in subsidiaries 5 Net income attributable to the controlling interests $ 2,384 Capital expenditures $ 2,171 $ 543 $ 2,002 $ 13 $ 4,729 Total assets $ 1,254,906 $ 351,616 $ 524,856 $ 53,925 $ 2,185,303

Shareholders' Equity (Notes)

Shareholders' Equity (Notes)	3 Months Ended
	Mar. 31, 2017
Equity [Abstract]
Stockholders' Equity	SHAREHOLDERS' EQUITY On June 23, 2015, we entered into four separate equity distribution agreements (collectively, the “Equity Distribution Agreements”) with each of Wells Fargo Securities, LLC, BNY Mellon Capital Markets, LLC, Citigroup Global Markets Inc. and RBC Capital Markets, LLC relating to the issuance of up to $200.0 million of our common shares from time to time. Issuances of our common shares are made at market prices prevailing at the time of issuance. We may use net proceeds from the issuance of common shares under this program for general corporate purposes, including, without limitation, working capital, the acquisition, renovation, expansion, improvement, development or redevelopment of income producing properties or the repayment of debt. During the 2017 Quarter, we issued 1.0 million common shares under the Equity Distribution Agreements at a weighted average price of $31.31 per share, raising $30.0 million in net proceeds. Subsequent to the 2017 Quarter, we issued an additional 1.1 million common shares under the Equity Distribution Agreements at a weighted average price of $31.49 per share, raising $34.1 million in net proceeds. We have a dividend reinvestment program, whereby shareholders may use their dividends and optional cash payments to purchase common shares. The common shares sold under this program may either be common shares issued by us or common shares purchased in the open market. During the 2017 Quarter, we issued 34,770 common shares under this program at a weighted average price of $32.07 per share, raising $1.1 million in net proceeds.

Subsequent Events Subsequent Ev

Subsequent Events Subsequent Events (Notes)	3 Months Ended
	Mar. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENT S On April 4, 2017 , we closed the purchase of Watergate 600, a 309,000 square foot office building in Washington, DC, for approximately $135.0 million in a transaction that was structured to include the issuance of operating units for $0.4 million of the purchase price. We primarily funded the purchase with borrowings on our Revolving Credit Facility

Summary of Significant Accoun21

Summary of Significant Accounting Policies and Basis of Presentation (Policy)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Fiscal Period	Significant Accounting Policies We have prepared our consolidated financial statements using the accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2016
New Accounting Pronouncements	New Accounting Pronouncements In January 2017, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update No. 2017-01, Business Combinations (Topic 805) - Clarifying the Definition of a Business , which adds guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Under the new guidance, a set of transferred assets and activities is not a business when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or group of similar identifiable assets. If a set of transferred assets and activities does not meet this threshold, then an entity must evaluate whether the set meets the requirement that a business include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create outputs. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein. Early adoption of the standard is allowed for transactions that have not been reported in financial statements issued prior to the new standard’s issuance date, and we adopted the standard as of October 1, 2016. Accordingly, the new standard has been applied to the acquisition of Watergate 600, a 309,000 square foot office building in Washington, DC executed on April 4, 2017 (see note 13 ). Prior to the new guidance, this acquisition would have been accounted for as a business combination, but is accounted for as an asset acquisition under the new guidance. Acquisition costs are capitalized in asset acquisitions but expensed in business combinations. Identifiable assets, liabilities assumed and any noncontrolling interests are recognized and measured as of the acquisition date at fair value in a business combination, but are measured by allocating the cost of the acquisition on a relative fair value basis in an asset acquisition. As of March 31, 2017, we had capitalized $0.6 million of costs related to the acquisition of Watergate 600. In November 2016, the FASB issued Accounting Standards Update No. 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash , which requires that restricted cash and cash equivalents be included with cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the consolidated statements of cash flows. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein, with early adoption permitted. We are currently evaluating the impact the new standard may have on Washington REIT’s consolidated financial statements. In August 2016, the FASB issued Accounting Standards Update No. 2016-15, Classification of Certain Cash Receipts and Cash Payments , which provides specific guidance on how cash receipts and payments should be presented and classified in the statement of cash flows for eight specific issues. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein, with early adoption permitted. We are currently evaluating the impact the new standard may have on Washington REIT’s consolidated financial statements. In June 2016, the FASB issued Accounting Standards Update No. 2016-13, Measurement of Credit Losses on Financial Instruments , which requires financial assets measured at an amortized cost basis, including trade receivables, to be presented at the net amount expected to be collected. The new standard is effective for public entities for fiscal years beginning after December 15, 2019 and for interim periods therein with adoption one year earlier permitted. We are currently evaluating the impact the new standard may have on Washington REIT’s consolidated financial statements. In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases (Topic 842) (“ASU 2016-02”) , which amends existing accounting standards for lease accounting, including by requiring lessees to recognize most leases on the balance sheet and making certain changes to lessor accounting. The new standard is effective for public entities for fiscal years beginning after December 15, 2018 and for interim periods therein with early adoption permitted. Upon adoption, for leases in which we are the lessor, the lease contract will be separated into lease and non-lease components in accordance with the provisions outlined within ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (“ASU 2014-09”). The lease component of the contract will be recognized on a straight-line basis in accordance with ASU 2016-02, while the non-lease component will be recognized under the provisions of ASU 2014-09. For lease contracts with a duration of more than one year in which we are the lessee, the present value of future lease payments will be recognized on our balance sheet as a right-of-use asset and a corresponding lease liability. Also, only direct leasing costs may be capitalized under the new standard, while current accounting standards allow for the capitalization of indirect leasing costs. We are currently evaluating the impact ASU 2016-02 may have on Washington REIT’s consolidated financial statements. In June 2014, the FASB issued ASU 2014-09, which creates a single source of revenue guidance. The new standard provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts to provide goods or services to their customers (unless the contracts are in the scope of other U.S. generally accepted accounting principles (“GAAP”) requirements, such as the leasing literature). The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain nonfinancial assets, such as property and equipment, including real estate. The new standard is effective for public entities for fiscal years beginning after December 15, 2017 and for interim periods therein. Early adoption is permitted for public entities beginning after December 15, 2016. We intend to adopt the new standard using the modified retrospective method. Upon adoption of ASU 2016-02, the majority of our revenue will be subject to the allocation provisions outlined within the revenue standard. We are currently evaluating the specific implementation requirements for allocating the consideration within our contracts in accordance with ASU 2014-09. We do not expect the new standard to have a material impact on the measurement and recognition of gains and losses on the sale of properties.
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation The accompanying unaudited consolidated financial statements include the consolidated accounts of Washington REIT, our majority-owned subsidiaries and entities in which Washington REIT has a controlling interest, including where Washington REIT has been determined to be a primary beneficiary of a variable interest entity (“VIE”). See note 3 for additional information on the property for which there is a noncontrolling interest. All intercompany balances and transactions have been eliminated in consolidation.
Basis of Accounting	We have prepared the accompanying unaudited financial statements pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to those rules and regulations, although we believe that the disclosures made are adequate to make the information presented not misleading. In addition, in the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the results for the periods presented have been included. These unaudited financial statements should be read in conjunction with the financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2016 . Within these notes to the financial statements, we refer to the three months ended March 31, 2017 and March 31, 2016 as the “ 2017 Quarter” and the “ 2016 Quarter,” respectively.
Use of Estimates in the Financial Statements	Use of Estimates in the Financial Statements The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Real Estate (Tables)

Real Estate (Tables)	3 Months Ended
	Mar. 31, 2017
Real Estate [Abstract]
Schedule of assets in joint venture	As of March 31, 2017 and December 31, 2016 , The Maxwell’s assets were as follows (in thousands): March 31, 2017 December 31, 2016 Land $ 12,851 $ 12,851 Income producing property 37,954 37,949 Accumulated depreciation and amortization (5,127 ) (4,571 ) Other assets 622 456 $ 46,300 $ 46,685
Schedule of Accounts Payable and Accrued Liabilities of Joint Ventures	As of March 31, 2017 and December 31, 2016 , The Maxwell’s liabilities were as follows (in thousands): March 31, 2017 December 31, 2016 Mortgage notes payable (1) $ 31,798 $ 31,869 Accounts payable and other liabilities 326 186 Tenant security deposits 98 99 $ 32,222 $ 32,154 (1) The mortgage notes payable balances as of March 31, 2017 and December 31, 2016 are eliminated in consolidation due to the purchase of the loan by Washington REIT in January 2016.
Schedule of Dispositions	We did not sell or classify as held for sale any properties during the 2017 Quarter. We sold the following properties in 2016 : Disposition Date Property Name Segment Rentable Square Feet Contract Gain on Sale May 26, 2016 Dulles Station II (1) Office N/A $ 12,100 $ 527 June 27, 2016 Maryland Office Portfolio Transaction I (2) Office 692,000 111,500 23,585 September 22, 2016 Maryland Office Portfolio Transaction II (3) Office 491,000 128,500 77,592 Total 2016 1,183,000 $ 252,100 $ 101,704 (1) Land held for future development and an interest in a parking garage. (2) Maryland Office Portfolio Transaction I consists of 6110 Executive Boulevard, 600 Jefferson Plaza, Wayne Plaza and West Gude Drive. (3) Maryland Office Portfolio Transaction II consists of 51 Monroe Street and One Central Plaza.
Disposal Groups, Including Discontinued Operations	Real estate rental revenue and net income for the Maryland Office Portfolio for the three months ended March 31, 2017 and 2016 are as follows: Three Months Ended March 31, 2017 2016 Real estate rental revenue $ — $ 8,430 Net income — 2,726

Unsecured Lines of Credit Pay23

Unsecured Lines of Credit Payable (Tables)	3 Months Ended
	Mar. 31, 2017
Unsecured Debt [Abstract]
Unsecured Lines Of Credit Unused And Available [Table Text Block]	The amount of the Revolving Credit Facility’s unsecured line of credit unused and available at March 31, 2017 is as follows (in thousands): Committed capacity $ 600,000 Borrowings outstanding (123,000 ) Unused and available $ 477,000
Lines Of Credit Repayments And Borrowings [Table Text Block]	We executed borrowings and repayments on the Revolving Credit Facility during the 2017 Quarter as follows (in thousands): Revolving Credit Facility Balance at December 31, 2016 $ 120,000 Borrowings 90,000 Repayments (87,000 ) Balance at March 31, 2017 $ 123,000

Derivatives Instruments (Tables

Derivatives Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Assets at Fair Value	The fair values of the interest rate swaps as of March 31, 2017 and December 31, 2016 , are as follows (in thousands): Fair Value Asset Derivatives Derivative Instrument Aggregate Notional Amount Effective Date Maturity Date March 31, 2017 December 31, 2016 Interest rate swaps $ 150,000 October 15, 2015 March 15, 2021 $ 980 $ 417 Interest rate swaps 150,000 March 31, 2017 July 21, 2023 7,366 7,194 $ 300,000 $ 8,346 $ 7,611
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)	The interest rate swaps have been effective since inception. The net gains or losses on the effective swaps are recognized in other comprehensive income (loss), as follows (in thousands): Three Months Ended March 31, 2017 2016 Unrealized gain (loss) on interest rate hedges $ 735 $ (3,675 )

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Financial Assets and Liabilities Measured at Fair Value	The fair values of these assets and liabilities at March 31, 2017 and December 31, 2016 were as follows (in thousands): March 31, 2017 December 31, 2016 Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Assets: SERP $ 1,526 $ — $ 1,526 $ — $ 1,407 $ — $ 1,407 $ — Interest rate swaps $ 8,346 $ — $ 8,346 $ — $ 7,611 $ — $ 7,611 $ —
Financial Assets and Liabilities Not Measured at Fair Value	As of March 31, 2017 and December 31, 2016 , the carrying values and estimated fair values of our financial instruments were as follows (in thousands): March 31, 2017 December 31, 2016 Carrying Value Fair Value Carrying Value Fair Value Cash and cash equivalents $ 15,214 $ 15,214 $ 11,305 $ 11,305 Restricted cash 1,430 1,430 6,317 6,317 2445 M Street note receivable 2,166 2,216 2,089 2,173 Mortgage notes payable, net 97,814 100,702 148,540 149,997 Lines of credit 123,000 123,000 120,000 120,000 Notes payable, net 893,424 925,613 843,084 873,516

Earnings per Common Share (Tabl

Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2017
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings per Share	The computations of basic and diluted earnings per share for the three months ended March 31, 2017 and 2016 were as follows (in thousands, except per share data): Three Months Ended March 31, 2017 2016 Numerator: Net income $ 6,615 $ 2,379 Net loss attributable to noncontrolling interests in subsidiaries 19 5 Allocation of earnings to unvested restricted share awards (78 ) (90 ) Adjusted net income attributable to the controlling interests $ 6,556 $ 2,294 Denominator: Weighted average shares outstanding – basic 74,854 68,301 Effect of dilutive securities: Employee restricted share awards 112 187 Weighted average shares outstanding – diluted 74,966 68,488 Basic net income attributable to the controlling interests per common share $ 0.09 $ 0.03 Diluted net income attributable to the controlling interests per common share $ 0.09 $ 0.03

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Reconciliation of Net Operating Income of Reportable Segments	The following tables present revenues, net operating income, capital expenditures and total assets for the three months ended March 31, 2017 and 2016 from these segments, and reconcile net operating income of reportable segments to net income attributable to the controlling interests as reported (in thousands): Three Months Ended March 31, 2017 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 38,027 $ 15,705 $ 23,769 $ — $ 77,501 Real estate expenses 14,414 3,863 9,586 — 27,863 Net operating income $ 23,613 $ 11,842 $ 14,183 $ — $ 49,638 Depreciation and amortization (26,069 ) General and administrative (5,626 ) Interest expense (11,405 ) Other income 77 Net income 6,615 Less: Net loss attributable to noncontrolling interests in subsidiaries 19 Net income attributable to the controlling interests $ 6,634 Capital expenditures $ 4,955 $ 184 $ 6,297 $ 575 $ 12,011 Total assets $ 1,097,256 $ 348,221 $ 764,732 $ 43,900 $ 2,254,109 Three Months Ended March 31, 2016 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 43,818 $ 15,380 $ 17,939 $ — $ 77,137 Real estate expenses 17,075 4,406 7,253 — 28,734 Net operating income $ 26,743 $ 10,974 $ 10,686 $ — $ 48,403 Depreciation and amortization (26,038 ) Acquisition costs (154 ) General and administrative (5,511 ) Interest expense (14,360 ) Other income 39 Net income 2,379 Less: Net loss attributable to noncontrolling interests in subsidiaries 5 Net income attributable to the controlling interests $ 2,384 Capital expenditures $ 2,171 $ 543 $ 2,002 $ 13 $ 4,729 Total assets $ 1,254,906 $ 351,616 $ 524,856 $ 53,925 $ 2,185,303

Nature of Business - Narrative

Nature of Business - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of distribution of ordinary taxable income	90.00%
Taxable Reit Subsidiary [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred Tax Assets, Net	$ 0.5	$ 0.5
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	2.9	2.9
Deferred Tax Liabilities, Net	$ 0.4	$ 0.4

Summary of Significant Accoun29

Summary of Significant Accounting Policies and Basis of Presentation Accounting Policies (Details) $ in Millions	Mar. 31, 2017USD ($)
Business Combination, Description [Abstract]
Business acquisition, transaction costs	$ 0.6

Real Estate - Development_Redev

Real Estate - Development/Redevelopment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Real Estate Properties [Line Items]
Properties under development or held for future development	$ 42,914	$ 40,232
Real Estate Investment Property, at Cost	2,697,122	$ 2,685,403
Army Navy Building [Domain]
Real Estate Properties [Line Items]
Properties under development or held for future development	3,400
Real Estate Investment Property, at Cost	1,000
The Wellington land parcel [Member]
Real Estate Properties [Line Items]
Properties under development or held for future development	20,700
Riverside Developments [Member]
Real Estate Properties [Line Items]
Properties under development or held for future development	17,100
Spring Vally Retail Center [Member]
Real Estate Properties [Line Items]
Properties under development or held for future development	$ 1,100

Real Estate - Variable Interest

Real Estate - Variable Interest Entities (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Dec. 31, 2016
Real Estate Properties [Line Items]
Land		$ 573,315	$ 573,315
Accounts payable and other liabilities		50,684	46,967
Tenant security deposits		$ 9,002	8,802
Six Fifty North Glebe Road [Member]
Real Estate Properties [Line Items]
Variable interest entity, qualitative or quantitative information, ownership percentage		90.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		10.00%
Land		$ 12,851	12,851
Income producing property		37,954	37,949
Accumulated depreciation and amortization		(5,127)	(4,571)
Other assets		622	456
Real Estate Investments, Joint Ventures		46,300	46,685
Mortgage notes payable (1)	[1]	31,798	31,869
Accounts payable and other liabilities		326	186
Tenant security deposits		98	99
Accounts payable and accrued liabilities related to joint ventures		$ 32,222	$ 32,154
[1]	The mortgage notes payable balances as of March 31, 2017 and December 31, 2016 are eliminated in consolidation due to the purchase of the loan by Washington REIT in January 2016.

Real Estate - Held for Sale and

Real Estate - Held for Sale and Sold Properties (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)ft²
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²	1,183,000
Disposal Group, Including Discontinued Operation, Consideration	$ 252,100
Gain on sale of real estate	101,704
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Dulles Station II [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration	12,100	[1]
Gain on sale of real estate	527	[1]
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Maryland Office Portfolio Transaction I [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration	111,500	[2]
Gain on sale of real estate	23,585	[2]
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Maryland Office Portfolio Transaction II [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Consideration	128,500	[3]
Gain on sale of real estate	$ 77,592	[3]
Office [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Maryland Office Portfolio Transaction I [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²	692,000	[2]
Office [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Maryland Office Portfolio Transaction II [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²	491,000	[3]
[1]	Land held for future development and an interest in a parking garage.
[2]	Maryland Office Portfolio Transaction I consists of 6110 Executive Boulevard, 600 Jefferson Plaza, Wayne Plaza and West Gude Drive.
[3]	Maryland Office Portfolio Transaction II consists of 51 Monroe Street and One Central Plaza.

Real Estate - Disposal Group re

Real Estate - Disposal Group revenue and net income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Real estate rental revenue	$ 0	$ 8,430
Net income	$ 0	$ 2,726

Mortgage Notes Payable (Details

Mortgage Notes Payable (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Feb. 28, 2017	Mar. 31, 2017	Mar. 31, 2016
Debt Instrument [Line Items]
Repayments of Notes Payable		$ 50,346	$ 84,219
The Army Navy Club Building Member
Debt Instrument [Line Items]
Repayments of Notes Payable	$ 49,600

Unsecured Lines of Credit Pay35

Unsecured Lines of Credit Payable - Narrative (Details)	3 Months Ended
	Mar. 31, 2017USD ($)	Sep. 30, 2015USD ($)
Line of Credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.20%
Line of Credit Facility, Interest Rate During Period	1.00%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Committed capacity	$ 1,000,000,000
Revolving Credit Facility | 2015 Term Loan [Member]
Line of Credit Facility [Line Items]
Long-term Line of Credit, Noncurrent		$ 150,000,000
Debt Instrument, Term	5 years 6 months
Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Committed capacity	$ 600,000,000
Debt Instrument, Maturity Date	Jun. 22, 2019
line of credit facility, number of extensions allowed	2
Line of Credit Facility, extension period	6 months
Minimum [Member] | Line of Credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.125%
Maximum [Member] | Line of Credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Commitment Fee Percentage	0.30%
London Interbank Offered Rate (LIBOR) [Member] | 2015 Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	P1M
London Interbank Offered Rate (LIBOR) [Member] | Line of Credit
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility | 2015 Term Loan [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.10%
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Line of Credit
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.875%
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Line of Credit
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.55%
Base Rate [Member] | Minimum [Member] | Line of Credit
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%
Base Rate [Member] | Maximum [Member] | Line of Credit
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.55%
Federal Funds Effective Swap Rate [Member] | Line of Credit
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.50%
Interest Rate Swap [Member] | 2015 Term Loan [Member]
Line of Credit Facility [Line Items]
Derivative, Number of Instruments Held	2

Unsecured Lines of Credit Pay36

Unsecured Lines of Credit Payable - Schedule of Credit Unused and Available (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Borrowings outstanding	$ (123,000,000)	$ (120,000,000)
Revolving Credit Facility
Line of Credit Facility [Line Items]
Committed capacity	1,000,000,000
Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Committed capacity	600,000,000
Borrowings outstanding	(123,000,000)	$ (120,000,000)
Unused and available	$ 477,000,000

Unsecured Lines of Credit Pay37

Unsecured Lines of Credit Payable - Line of Credit Facility, Increase (decrease), net (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Line of Credit Facility, Increase (Decrease) During the Period [Roll Forward]
Balance at December 31, 2016	$ 120,000
Balance at March 31, 2017	123,000
Revolving Credit Facility | Line of Credit
Line of Credit Facility, Increase (Decrease) During the Period [Roll Forward]
Balance at December 31, 2016	120,000
Borrowings	90,000
Repayments	(87,000)
Balance at March 31, 2017	$ 123,000

Note Payable (Details)

Note Payable (Details) - USD ($)	Jul. 22, 2016	Mar. 31, 2017	Dec. 31, 2016
2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.00%
2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.50%
2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		2.45%
2016 Term Loan [Member] | Base Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
2016 Term Loan [Member] | Base Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.45%
2016 Term Loan [Member] | Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Unsecured Debt [Member] | 2016 Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Term		7 years
Debt Instrument, Face Amount		$ 150,000,000
Debt Instrument, Maturity Date	Jul. 21, 2023
Debt Instrument, Deferred Draw Period		6 months
Unsecured Long-term Debt, Noncurrent			$ 100,000,000
Proceeds from Issuance of Unsecured Debt		$ 50,000,000
Derivative, Fixed Interest Rate		2.90%
Unsecured Debt [Member] | 2016 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.65%
2015 Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis		P1M

Derivatives Instruments - Narra

Derivatives Instruments - Narrative (Details)	3 Months Ended
	Mar. 31, 2017USD ($)	Jul. 22, 2016USD ($)	Sep. 15, 2015USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 500,000
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	300,000,000
Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate swaps	$ 8,300,000
2015 Term Loan [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Number of Instruments Held			2
Derivative, Notional Amount			$ 150,000,000
Derivative, Fixed Interest Rate	2.70%
2016 Term Loan [Member] | Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Number of Instruments Held		2
Derivative, Notional Amount		$ 150,000,000
Derivative, Fixed Interest Rate		2.90%

Derivatives Instruments - Sched

Derivatives Instruments - Schedule of Derivative Liability at Fair Value (Details) - Interest Rate Swap [Member] - USD ($)	Mar. 31, 2017	Dec. 31, 2016	Jul. 22, 2016	Sep. 15, 2015
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 300,000,000
Interest rate swaps	8,346,000	$ 7,611,000
Prepaid expenses and other assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate swaps	8,346,000	7,611,000
2015 Term Loan [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount				$ 150,000,000
2015 Term Loan [Member] | Prepaid expenses and other assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate swaps	980,000	417,000
2016 Term Loan [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount			$ 150,000,000
2016 Term Loan [Member] | Prepaid expenses and other assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate swaps	$ 7,366,000	$ 7,194,000

Derivatives Instruments - Sch41

Derivatives Instruments - Schedule of Gains (Losses) on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on interest rate hedges	$ 735	$ (3,675)

Fair Value Disclosures - Financ

Fair Value Disclosures - Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Supplemental Employee Retirement Plan [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
SERP	$ 1,526	$ 1,407
Supplemental Employee Retirement Plan [Member] | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
SERP	0	0
Supplemental Employee Retirement Plan [Member] | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
SERP	1,526	1,407
Supplemental Employee Retirement Plan [Member] | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
SERP	0	0
Interest Rate Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	8,346	7,611
Interest Rate Swap [Member] | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	0	0
Interest Rate Swap [Member] | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	8,346	7,611
Interest Rate Swap [Member] | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps	$ 0	$ 0

Fair Value Disclosures - Fina43

Fair Value Disclosures - Financial Assets and Liabilities Not Measured at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commercial Paper, Maturity	90
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 15,214	$ 11,305
Restricted cash	1,430	6,317
Mortgage notes payable, net	97,814	148,540
Lines of credit	123,000	120,000
Notes payable, net	893,424	843,084
Carrying Value | 2445 M Street note receivable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
2445 M Street note receivable	2,166	2,089
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	15,214	11,305
Restricted cash	1,430	6,317
Mortgage notes payable, net	100,702	149,997
Lines of credit	123,000	120,000
Notes payable, net	925,613	873,516
Fair Value | 2445 M Street note receivable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
2445 M Street note receivable	$ 2,216	$ 2,173

Stock Based Compensation (Detai

Stock Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1.1	$ 1.5
Restricted Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of share grants vested	$ 1.6	$ 2
Total unvested restricted share awards (in shares)	258,759
Weighted average grant date fair value (in dollars per share)	$ 30.13
Total compensation costs, non-vested restricted share awards	$ 5.8
Total compensation cost not yet recognized, period for recognition (in months)	28 months
Washington Real Estate Investment Trust 2016 Omnibus Long Term Incentive Plan [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based plan, aggregate number of shares authorized (in shares)	2,400,000
Stock based plan, period in effect (in years)	10 years

Earnings per Common Share - EPS

Earnings per Common Share - EPS Schedule (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Net income	$ 6,615	$ 2,379
Less: Net loss attributable to noncontrolling interests in subsidiaries	19	5
Allocation of earnings to unvested restricted share awards	(78)	(90)
Adjusted net income attributable to the controlling interests	$ 6,556	$ 2,294
Weighted average shares outstanding - basic (in shares)	74,854	68,301
Employee restricted share awards	112	187
Weighted average shares outstanding - diluted (in shares)	74,966	68,488
Basic net income attributable to the controlling interests per common share( in dollars per share)	$ 0.09	$ 0.03
Diluted net income attributable to the controlling interests per common share (in dollars per share)	$ 0.09	$ 0.03

Segment Information - Segment S

Segment Information - Segment Schedules (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)segment	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3
Real estate rental revenue	$ 77,501	$ 77,137
Real estate expenses	27,863	28,734
Gross Profit	49,638	48,403
Depreciation and amortization	(26,069)	(26,038)
Acquisition costs	0	(154)
General and administrative	(5,626)	(5,511)
Interest expense	(11,405)	(14,360)
Other income	77	39
Net income	6,615	2,379
Less: Net loss attributable to noncontrolling interests in subsidiaries	19	5
Net income attributable to the controlling interests	6,634	2,384
Capital expenditures	12,011	4,729
Total assets	2,254,109	2,185,303	$ 2,253,619
Office
Segment Reporting Information [Line Items]
Real estate rental revenue	38,027	43,818
Real estate expenses	14,414	17,075
Gross Profit	23,613	26,743
Capital expenditures	4,955	2,171
Total assets	1,097,256	1,254,906
Retail
Segment Reporting Information [Line Items]
Real estate rental revenue	15,705	15,380
Real estate expenses	3,863	4,406
Gross Profit	11,842	10,974
Capital expenditures	184	543
Total assets	348,221	351,616
Multifamily
Segment Reporting Information [Line Items]
Real estate rental revenue	23,769	17,939
Real estate expenses	9,586	7,253
Gross Profit	14,183	10,686
Capital expenditures	6,297	2,002
Total assets	764,732	524,856
Corporate and Other
Segment Reporting Information [Line Items]
Real estate rental revenue	0	0
Real estate expenses	0	0
Gross Profit	0	0
Capital expenditures	575	13
Total assets	$ 43,900	$ 53,925

Shareholders' Equity

Shareholders' Equity - USD ($)	1 Months Ended	3 Months Ended
	Apr. 28, 2017	Mar. 31, 2017	Mar. 31, 2016
Class of Stock [Line Items]
Net proceeds from equity offering		$ 29,959,000	$ 0
Shares issued under dividend reinvestment program		1,114,000
Common Stock [Member]
Class of Stock [Line Items]
Capital shares reserved for future issuances		$ 200,000,000
Stock Issued During Period, Shares, New Issues		972,000
Stock Issued During Period, Weighted Average Price		$ 31.31
Net proceeds from equity offering		$ 30,000,000
Shares issued under dividend reinvestment program (in shares)		34,770
Stock issued during period, weighted share price, Dividend Reinstated Plan		$ 32.07
Shares issued under dividend reinvestment program		$ 1,100,000
Subsequent Event [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues	1,100,000
Stock Issued During Period, Weighted Average Price	$ 31.49
Net proceeds from equity offering	$ 34,100,000

Subsequent Events Subsequent 48

Subsequent Events Subsequent Events (Details) $ in Thousands	Apr. 04, 2017USD ($)ft²	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)ft²
Subsequent Event [Line Items]
Rentable Square Feet | ft²			1,183,000
Real Estate Investment Property, at Cost		$ 2,697,122	$ 2,685,403
Watergate 600 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Rentable Square Feet | ft²	309,000
Real Estate Investment Property, at Cost	$ 135,000
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned	$ 400