Elme Communities (ELME) 10-Q 29 Apr 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 25, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	WASHINGTON REAL ESTATE INVESTMENT TRUST
Entity Central Index Key	0000104894
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Entity Emerging Growth Company	false
Entity Small Business	false
Amendment Flag	false
Entity Common Stock, Shares Outstanding		80,033,588

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Assets
Land	$ 612,692	$ 614,659
Income producing property	2,276,385	2,271,926
Net income producing property, at cost	2,889,077	2,886,585
Accumulated depreciation and amortization	(781,302)	(770,535)
Net income producing property	2,107,775	2,116,050
Properties under development or held for future development	97,288	87,231
Total real estate held for investment, net	2,205,063	2,203,281
Cash and cash equivalents	12,025	6,016
Restricted cash	1,368	1,624
Rents and other receivables	73,293	73,861
Prepaid expenses and other assets	116,718	132,322
Total assets	2,408,467	2,417,104
Liabilities
Notes payable, net	995,750	995,397
Mortgage notes payable, net	58,805	59,792
Line of credit	228,000	188,000
Accounts payable and other liabilities	67,279	59,567
Dividend payable	0	24,022
Advance rents	10,418	11,736
Tenant security deposits	10,019	10,112
Total liabilities	1,370,271	1,348,626
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; 80,029 and 79,910 shares issued and outstanding, as of March 31, 2019 and December 31, 2018, respectively	800	799
Additional paid in capital	1,529,916	1,526,574
Distributions in excess of net income	(498,537)	(469,085)
Accumulated other comprehensive income	5,670	9,839
Total shareholders’ equity	1,037,849	1,068,127
Noncontrolling interests in subsidiaries	347	351
Total equity	1,038,196	1,068,478
Total liabilities and equity	$ 2,408,467	$ 2,417,104

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred shares, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred shares, shares authorized (in shares)	10,000,000	10,000,000
Preferred shares, shares issued (in shares)	0	0
Preferred shares, 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)	80,029,000	79,910,000
Shares of beneficial interest, shares outstanding (in shares)	80,029,000	79,910,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenue
Real estate rental revenue	$ 83,174	$ 84,881
Expenses
Real estate expenses	29,210	29,901
Depreciation and amortization	29,547	29,969
General and administrative expenses	7,429	5,821
Lease origination expenses	378	0
Real estate impairment	8,374	1,886
Operating expenses	74,938	67,577
Real estate operating income	8,236	17,304
Other (expense) income
Interest expense	(12,641)	(12,827)
Loss on extinguishment of debt	0	(1,178)
Total other income (expense)	(12,641)	(14,005)
Net (loss) income	(4,405)	3,299
Less: Net income attributable to noncontrolling interests in subsidiaries	0	0
Net (loss) income attributable to the controlling interests	$ (4,405)	$ 3,299
Basic net income per share:
Basic net income attributable to the controlling interests per common share (in dollars per share)	$ (0.06)	$ 0.04
Diluted net income per share:
Diluted net income attributable to the controlling interests per common share (in dollars per share)	$ (0.06)	$ 0.04
Weighted average shares outstanding - basic (in shares)	79,881	78,483
Weighted average shares outstanding - diluted (in shares)	79,881	78,547

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (4,405)	$ 3,299
Unrealized (loss) gain on interest rate hedges	(4,169)	4,065
Comprehensive (loss) income	(8,574)	7,364
Less: Comprehensive income attributable to noncontrolling interests	0	0
Comprehensive (loss) income attributable to the controlling interests	$ (8,574)	$ 7,364

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Shares of Beneficial Interest at Par Value	Additional Paid in Capital	Distributions in Excess of Net Income	Accumulated Other Comprehensive Income	Total Shareholders’ Equity	Noncontrolling Interests in Subsidiaries
Balance (in shares) at Dec. 31, 2017		78,510,000
Balance at Dec. 31, 2017	$ 1,095,336	$ 785	$ 1,483,980	$ (399,213)	$ 9,419	$ 1,094,971	$ 365
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to the controlling interests	3,299			3,299		3,299
Unrealized gain (loss) on interest rate hedges	4,065				4,065	4,065
Distributions to noncontrolling interests	(3)						(3)
Dividends	$ (23,719)			(23,719)		(23,719)
Shares issued under dividend reinvestment program (in shares)	37,079	37,000
Shares issued under dividend reinvestment program	$ 717	$ 0	717			717
Share grants, net of forfeitures and tax withholdings (in shares)		89,000
Share grants, net of forfeitures and tax withholdings	1,069	$ 1	1,068			1,069
Balance (in shares) at Mar. 31, 2018		78,636,000
Balance at Mar. 31, 2018	1,080,764	$ 786	1,485,765	(419,633)	13,484	1,080,402	362
Balance (in shares) at Dec. 31, 2018		79,910,000
Balance at Dec. 31, 2018	1,068,478	$ 799	1,526,574	(469,085)	9,839	1,068,127	351
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to the controlling interests	(4,405)			(4,405)		(4,405)
Unrealized gain (loss) on interest rate hedges	(4,169)				(4,169)	(4,169)
Distributions to noncontrolling interests	(4)						(4)
Dividends	$ (24,141)			(24,141)		(24,141)
Shares issued under dividend reinvestment program (in shares)	42,842	43,000
Shares issued under dividend reinvestment program	$ 1,097	$ 0	1,097			1,097
Share grants, net of forfeitures and tax withholdings (in shares)		76,000
Share grants, net of forfeitures and tax withholdings	2,246	$ 1	2,245			2,246
Balance (in shares) at Mar. 31, 2019		80,029,000
Balance at Mar. 31, 2019	$ 1,038,196	$ 800	$ 1,529,916	$ (498,537)	$ 5,670	$ 1,037,849	$ 347

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net (loss) income	$ (4,405)	$ 3,299
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	29,547	29,969
Credit losses on lease related receivables	0	176
Real estate impairment	8,374	1,886
Share-based compensation expense	2,826	1,541
Amortization of debt premiums, discounts and related financing costs	536	446
Loss on extinguishment of debt	0	1,178
Changes in operating other assets	(2,035)	(1,374)
Changes in operating other liabilities	(7,265)	(475)
Net cash provided by operating activities	27,578	36,646
Cash flows from investing activities
Real estate acquisitions, net	0	(106,400)
Net cash received for sale of real estate	0	78,483
Capital improvements to real estate	(7,281)	(7,845)
Development in progress	(6,091)	(4,754)
Non-real estate capital improvements	(67)	(172)
Net cash used in investing activities	(13,439)	(40,688)
Cash flows from financing activities
Line of credit borrowings, net	40,000	94,000
Dividends paid	(48,165)	(47,300)
Principal payments – mortgage notes payable	(610)	(136,309)
Repayments of unsecured term loan debt	0	(150,000)
Proceeds from term loan	0	250,000
Payment of financing costs	(252)	(5,411)
Distributions to noncontrolling interests	(4)	(3)
Proceeds from dividend reinvestment program	1,097	717
Payment of tax withholdings for restricted share awards	(452)	(296)
Net cash (used in) provided by financing activities	(8,386)	5,398
Net increase in cash, cash equivalents and restricted cash	5,753	1,356
Cash, cash equivalents and restricted cash at beginning of period	7,640	12,623
Cash, cash equivalents and restricted cash at end of period	13,393	13,979
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	6,848	7,416
Change in accrued capital improvements and development costs	$ 8,119	$ 2,675

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows - Reconciliation of Cash, Cash Equivalents and Restricted Cash - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$ 12,025	$ 6,016	$ 11,510
Restricted cash	1,368	1,624	2,469
Cash, cash equivalents and restricted cash	$ 13,393	$ 7,640	$ 13,979	$ 12,623

Nature of Business

Nature of Business	3 Months Ended
	Mar. 31, 2019
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 of 1986, as amended (the "Code"), and intend to continue to qualify as such. We have considered the provisions of the Tax Cuts and Jobs Act (the "TCJA"), which was signed into law on December 22, 2017 and which generally took effect for taxable years beginning on or after January 1, 2018, and the TCJA does not have a material impact on our ability to continue to qualify as a REIT. 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 both March 31, 2019 and December 31, 2018 , our TRSs had a deferred tax asset of $1.4 million that was fully reserved. As of both March 31, 2019 and December 31, 2018 , we had deferred state and local tax liabilities of $0.6 million . These deferred tax liabilities are primarily related to temporary differences in the timing of the recognition of revenue, depreciation and amortization.

Summary of Significant Accounti

Summary of Significant Accounting Policies and Basis of Presentations	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies and Basis of Presentations	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, 2018 , except as noted in note 3 related to our adoption of ASU 2016-02, Leases (Topic 842) as of January 1, 2019. Pronouncements Adopted Standard/Description Effective Date and Adoption Considerations Effect on Financial Statements or Other significant Matters ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”). This standard amends existing lease accounting standards for both lessees and lessors. Lessees must classify most leases as either finance or operating leases. For lease contracts, or contracts with an embedded lease, with a duration of more than one year in which we are the lessee, the present value of future lease payments are recognized on our consolidated balance sheets as a right-of-use asset and a corresponding lease liability. Leases (Topic 842) - Targeted Improvements (“ASU 2018-11”), which provides lessors optional transition relief from implementing this aspect of ASU 2016-02 if the following criteria are met: (1) both components have the same timing and pattern of revenue and (2) if accounted for separately, both components would be classified as an operating lease. We adopted the new standard as of January 1, 2019. We adopted ASU 2016-02 as of January 1, 2019 using the modified retrospective approach and by applying the transitional practical expedients noted below. Under the modified retrospective approach, we recognized a cumulative effect adjustment of $0.9 million to retained earnings as of January 1, 2019 (see note 3 for further discussion of the impact of adoption on our consolidated financial statements). We did not elect the hindsight expedient, which would have allowed us to reevaluate lease terms in calculating lease liabilities as part of adoption. Under ASU 2018-11, the FASB offered optional transition relief, if elected as a package, and applied consistently by an entity to all of its leases. Accordingly, upon adoption we elected, as a package, the practical expedients for all leases as follows: (1) we will not reassess whether any expired or existing contracts are or contain leases, (2) we will not reassess the lease classification for any expired or existing leases, and (3) we will not reassess initial direct costs for any existing leases. Pronouncements Not Yet Adopted Standard/Description Effective Date and Adoption Considerations Effect on Financial Statements or Other significant Matters ASU 2016-13, Measurement of Credit Losses on Financial Instruments . This standard 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 our consolidated financial statements. ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software . This standard requires a customer in a cloud computing arrangement that is a service contract to follow the internal-use software guidance to determine which implementation costs to capitalize as assets. The standard is effective for public entities for fiscal years beginning after December 31, 2019 and for interim periods therein, with early adoption permitted. We are currently evaluating the impact the new standard may have on our consolidated financial statements. 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. 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 (“SEC”). 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, 2018 . Within these notes to the financial statements, we refer to the three months ended March 31, 2019 and March 31, 2018 as the “ 2019 Quarter” and the “ 2018 Quarter,” respectively. Restricted Cash Restricted cash includes funds escrowed for tenant security deposits, real estate tax, insurance and mortgage escrows and escrow deposits required by lenders on certain of our properties to be used for future building renovations or tenant improvements. 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, 2019
Real Estate [Abstract]
Real Estate	REAL ESTATE Leasing as a lessor Revenue Recognition We lease multifamily properties under operating leases with terms of generally one year or less. We lease commercial properties (our office and retail segments) under operating leases with an average term of seven years. Substantially all commercial leases contain fixed escalations or, in some instances, changes based on the Consumer Price Index, which occur at specified times during the term of the lease. In certain commercial leases, variable lease income, such as percentage rent, is recognized when rents are earned. We recognize rental income and rental abatements from our multifamily and commercial leases when earned on a straight-line basis over the lease term. Recognition of rental income commences when control of the leased space has been transferred to the tenant. We recognize cost reimbursement income from pass-through expenses on an accrual basis over the periods in which the expenses were incurred. Pass-through expenses are comprised of real estate taxes, operating expenses and common area maintenance costs which are reimbursed by tenants in accordance with specific allowable costs per tenant lease agreements. Parking revenues are derived from leases, monthly parking agreements and transient parking. We recognize parking revenues from leases on a straight-line basis over the lease term and other parking revenues as earned. We recognize transient parking revenue when our performance obligation is met. Upon adoption of ASU 2016-02, we elected not to bifurcate lease contracts into lease and non-lease components, since the timing and pattern of revenue is not materially different and the non-lease components is not the primary component of the lease. Accordingly, both lease and non-lease components are presented in “Real estate rental revenue” in our consolidated financial statements. The adoption of ASU 2016-02 did not result in a material change to our recognition of real estate rental revenue. Accounts Receivable Lease related receivables, which include contractual amounts accrued and unpaid from tenants and accrued straight-line rents receivable, are reduced for credit losses. Such amounts are recognized as a reduction to real estate rental revenues. We evaluate the collectability of lease receivables monthly using several factors including a lessee’s creditworthiness. We recognize the credit loss on lease related receivables when, in the opinion of management, collection of substantially all lease payments is not probable. While collectability is determined not probable, any lease income subsequent to recognizing the credit loss is limited to the lesser of the lease income reflected on a straight-line basis or cash collected. The adoption of ASU 2016-02 resulted in an adjustment to our opening distributions in excess of net income balance of $0.9 million , associated with lease related receivables where collection of substantially all operating lease payments is not probable as of January 1, 2019. Future Minimum Rental Income As of March 31, 2019, non-cancelable commercial operating leases provide for future minimum rental income as follows (in thousands). Apartment leases are not included as the terms are generally for one year or less. 2019 $ 192,841 2020 181,544 2021 159,607 2022 139,518 2023 114,521 Thereafter 343,439 $ 1,131,470 As of December 31, 2018, non-cancelable commercial operating leases provide for future minimum rental income as follows (in thousands): 2019 $ 191,252 2020 175,925 2021 153,395 2022 133,359 2023 108,564 Thereafter 304,876 $ 1,067,371 Leasing as a Lessee 2000 M Street, an office property in Washington, DC, is subject to an operating ground lease with a remaining term of 52 years. Rental payments under this lease are subject to percentage rent variable payments, which are not included as part of our measurement of straight-line rental expense. We recognized variable rental payments of $0.2 million during each of the 2019 and 2018 Quarters. Upon adoption of ASU 2016-02, we recognized a right of use asset (included in Income producing property) and lease liability (included in Accounts payable and other liabilities) of $4.2 million . We used a discount rate of approximately 5.9% , which was derived from our assessment of securitized rates for similar assets and credit quality. We recognized $0.1 million of right-of-use and lease liability amortization during the 2019 Quarter. In addition, as of January 1, 2019 we reclassified the associated below-market ground lease intangible asset of $10.0 million , net of accumulated amortization of $2.1 million , from Prepaid expenses and other assets to Income producing property on our consolidated balance sheets. The following table sets forth the undiscounted cash flows of our schedule obligations for future minimum payments on our operating ground lease at March 31, 2019 and a reconciliation of those cash flows to the operating lease liability at March 31, 2019 (in thousands): 2019 $ 195 2020 260 2021 260 2022 260 2023 260 2024 260 Thereafter 11,895 13,390 Imputed interest (9,233 ) Lease liability $ 4,157 Acquisitions We did not execute any acquisitions during the 2019 Quarter. Properties and land for development acquired during the year ended December 31, 2018 were as follows: Acquisition Date Property Type # of units (unaudited) Rentable Square Feet (unaudited) Contract Purchase Price (in thousands) January 18, 2018 Arlington Tower Office N/A 391,000 $ 250,000 The results of operations from acquired operating properties are included in the consolidated statements of operations as of their acquisition dates. Development/Redevelopment We have properties under development/redevelopment and held for current or future development as of March 31, 2019 . 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, 2019 , we had invested $71.3 million and $23.3 million , including the costs of acquiring the land, in The Trove and the development adjacent to Riverside Apartments, respectively. In the retail segment, we had a redevelopment project to add rentable space at Spring Valley Village. As of March 31, 2019 , we had invested $6.6 million in the redevelopment. We substantially completed major construction activities on this project during the fourth quarter of 2018 and placed into service assets totaling $4.3 million . 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. We had no properties classified as held for sale requiring discontinuation of depreciation during the 2019 Quarter. 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 2019 Quarter. We sold our interests in the following properties in 2018 : Disposition Date Property Name Segment Rentable Square Feet/ Number of Units Contract Gain on Sale January 19, 2018 Braddock Metro Center Office 356,000 $ 93,000 $ — June 28, 2018 2445 M Street Office 292,000 101,600 2,495 Total 2018 648,000 $ 194,600 $ 2,495 We have fully transferred control of the assets associated with these disposed properties. During the first quarter of 2018, we executed a purchase and sale agreement to sell 2445 M Street, a 292,000 square foot office property in Washington, DC, for a contract sales price of $100.0 million , with settlement originally scheduled for the third quarter of 2018. During 2017, we evaluated 2445 M Street for impairment and recognized a $24.1 million impairment charge in order to reduce the carrying value of the property to its estimated fair value. Upon execution of the purchase and sale agreement, the property met the criteria for classification as held for sale. Due to the property’s classification as held for sale, we recorded an additional impairment charge of $1.9 million in the first quarter of 2018 in order to reduce the carrying value of the property to its estimated fair value, less estimated selling costs. We based this fair value on the expected sales price from a potential sale. There are few observable market transactions for similar properties. This fair valuation falls into Level 2 of the fair value hierarchy due to its reliance on a quoted price in a market that is not active. During the second quarter of 2018, we executed an amendment to the purchase and sale agreement which increased the contract sales price to $101.6 million and advanced the settlement date. On June 28, 2018, we sold 2445 M Street, recognizing a gain on sale of real estate of $2.5 million . During the first quarter of 2019, we executed a letter of intent for the sale of Quantico Corporate Center, an office property in Stafford, Virginia, consisting of two office buildings totaling 272,000 square feet. The property did not meet the criteria for classification as held for sale as of March 31, 2019. Due to the negotiations to sell the property, we evaluated Quantico Corporate Center for impairment and recognized a $8.4 million impairment charge during the 2019 Quarter in order to reduce the carrying value of the property to its estimated fair value. We based this fair valuation on the expected sale price from a potential sale. There are few observable market transactions for similar properties. This fair valuation falls into Level 2 of the fair value hierarchy due to its reliance on a quoted price in a market that is not active. On April 22, 2019, we executed a purchase and sale agreement to sell Quantico Corporate Center for a contract sale price of $33.0 million . We anticipate settlement in the second quarter of 2019. However, there can be no assurances that this proposed sale will be consummated. Upon execution of the purchase and sale agreement and receipt of a non-refundable deposit, we determined that the property met the criteria for classification as held for sale as of that date.

Unsecured Line of Credit Payabl

Unsecured Line of Credit Payable	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Unsecured Line of Credit Payable	UNSECURED LINE OF CREDIT PAYABLE During the first quarter of 2018, we entered into an amended and restated credit agreement (“Credit Agreement”) which provides for a $700.0 million unsecured revolving credit facility (“Revolving Credit Facility”), the continuation of an existing $150.0 million unsecured term loan (“2015 Term Loan”) and an additional $250.0 million unsecured term loan (“2018 Term Loan”). The Revolving Credit Facility has a four -year term ending in March 2022 , with two six -month extension options, and expands our prior $600.0 million unsecured revolving credit facility that was set to expire in June 2019. The Credit Agreement has an accordion feature that allows us to increase the aggregate facility to $1.5 billion , subject to the extent lenders agree to provide additional revolving loan commitments or term loans. The Revolving Credit Facility bears interest at a rate of either one month LIBOR plus a margin ranging from 0.775% 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 0.10% to 0.30% (depending on Washington REIT’s credit rating) on the $700.0 million committed revolving loan capacity, without regard to usage. As of March 31, 2019 , the interest rate on the Revolving Credit Facility is one month LIBOR plus 1.00% , the one month LIBOR is 2.49% and the facility fee is 0.20% . All outstanding advances for the Revolving Credit Facility are due and payable upon maturity in March 2022, unless extended pursuant to one or both of the two six-month extension options. Interest only payments are due and payable generally on a monthly basis. The 2018 Term Loan increases and replaces the $150.0 million unsecured term loan, initially entered into on July 22, 2016 (“2016 Term Loan”), that was scheduled to mature in July 2023. The 2018 Term Loan is scheduled to mature in July 2023 and bears interest at a rate of either one month LIBOR plus a margin ranging from 0.85% to 1.75% or the base rate plus a margin ranging from 0.0% to 0.75% (in each case depending upon Washington REIT’s credit rating). We used the $100.0 million of additional proceeds from the 2018 Term Loan primarily to repay outstanding borrowings on the Revolving Credit Facility. We had previously used interest rate derivatives to effectively fix the interest rate of the 2016 Term Loan. These interest rate derivatives now effectively fix the interest rate on a $150.0 million portion of the 2018 Term Loan at 2.31% . In March 2018, we entered into interest rate derivatives that commenced on June 29, 2018 to effectively fix the interest rate on the remaining $100.0 million of the 2018 Term Loan at 3.71% . The 2018 Term Loan has an all-in fixed interest rate of 2.87% . The amount of the Revolving Credit Facility’s unsecured line of credit unused and available at March 31, 2019 is as follows (in thousands): Committed capacity $ 700,000 Borrowings outstanding (228,000 ) Unused and available $ 472,000 We executed borrowings and repayments on the Revolving Credit Facility during the 2019 Quarter as follows (in thousands): Balance at December 31, 2018 $ 188,000 Borrowings 71,000 Repayments (31,000 ) Balance at March 31, 2019 $ 228,000

Derivative Instruments

Derivative Instruments	3 Months Ended
	Mar. 31, 2019
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 $150.0 million 2015 Term Loan (see note 4) to an all-in fixed interest rate of 2.72% 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 $150.0 million 2016 Term Loan (see note 4) to an all-in fixed interest rate of 2.86% starting on March 31, 2017 and extending until the maturity of the 2016 Term Loan on July 21, 2023 . On March 29, 2018, we entered into the $250.0 million 2018 Term Loan (see note 4) maturing on July 21, 2023, which increased and replaced the 2016 Term Loan. The interest rate swap arrangements that had effectively fixed the 2016 Term Loan now effectively fix the interest rate on a $150.0 million portion of the 2018 Term Loan at 2.31% . On March 29, 2018, we entered into four interest rate swap arrangements with a total notional amount of $100.0 million to effectively fix the interest rate on the remaining $100.0 million of the 2018 Term Loan at 3.71% , that commenced on June 29, 2018 and extending until the maturity of the 2018 Term Loan on July 21, 2023 . The $250.0 million 2018 Term Loan has an all-in fixed interest rate of 2.87% . 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 total change in fair value of the interest rate swap arrangements associated with our cash flow hedges in other comprehensive (loss) income. The resulting unrealized (loss) gain of the cash flow hedges was the only activity in other comprehensive (loss) income 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 all periods presented. The fair values of the interest rate swaps as of March 31, 2019 and December 31, 2018 , are as follows (in thousands): Fair Value Derivative Assets (Liabilities) Derivative Instrument Aggregate Notional Amount Effective Date Maturity Date March 31, 2019 December 31, 2018 Interest rate swaps $ 150,000 October 15, 2015 March 15, 2021 $ 1,779 $ 2,720 Interest rate swaps 150,000 March 31, 2017 July 21, 2023 5,808 7,918 Interest rate swaps 100,000 June 29, 2018 July 21, 2023 (1,917 ) (799 ) $ 400,000 $ 5,670 $ 9,839 We record interest rate swaps on our consolidated balance sheets within prepaid expenses and other assets when in a net asset position and within 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 (loss) income, as follows (in thousands): Three Months Ended March 31, 2019 2018 Unrealized (loss) gain on interest rate hedges $ (4,169 ) $ 4,065 Amounts reported in accumulated other comprehensive income 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 $2.7 million will be reclassified as a decrease 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, 2019 , the fair value of derivative assets, including accrued interest, was $7.6 million , and the fair value of the derivative liabilities, including accrued interest, was $1.9 million . As of March 31, 2019 , 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, 2019
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, 2019 and December 31, 2018 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 5 ). 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, Fair Value Measurement , 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, 2019 and December 31, 2018 were as follows (in thousands): March 31, 2019 December 31, 2018 Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Assets: SERP $ 1,476 $ — $ 1,476 $ — $ 1,364 $ — $ 1,364 $ — Interest rate swaps 7,587 — 7,587 — 10,638 — 10,638 — Liabilities: Interest rate swaps $ (1,917 ) $ — $ (1,917 ) $ — $ (799 ) $ — $ (799 ) $ — 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 models. 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, 2019 may differ significantly from the amounts presented. The valuations of cash and cash equivalents and restricted cash fall into Level 1 in the fair value hierarchy and the valuations of debt instruments fall into Level 3 in the fair value hierarchy. As of March 31, 2019 and December 31, 2018 , the carrying values and estimated fair values of our financial instruments were as follows (in thousands): March 31, 2019 December 31, 2018 Carrying Value Fair Value Carrying Value Fair Value Cash and cash equivalents $ 12,025 $ 12,025 $ 6,016 $ 6,016 Restricted cash 1,368 1,368 1,624 1,624 Mortgage notes payable, net 58,805 59,973 59,792 60,398 Line of credit 228,000 228,000 188,000 188,000 Notes payable, net 995,750 1,018,430 995,397 1,015,210

Stock Based Compensation

Stock Based Compensation	3 Months Ended
	Mar. 31, 2019
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. During the first quarter of 2019, we amended the STIP for executive officers and the STIP and LTIP for non-executive officers and staff to replace the use of core funds available for distribution as a performance metric and performance goal, respectively, with a Leasing Target performance metric and performance goal. Leasing Target means the aggregate annual leasing target amount (measured in square feet of leasing space) as approved by the compensation committee of our board of trustees for a given performance period and performance year, respectively, with respect to our office and retail properties. The amendment became effective as of March 18, 2019 for performance periods beginning on or after January 1, 2019. Total Compensation Expense Total compensation expense recognized in the consolidated financial statements for all outstanding share based awards was $2.8 million and $1.5 million for the 2019 Quarter and 2018 Quarter, respectively. Restricted Share Awards The total fair values of restricted share awards vested was $1.3 million and $0.7 million for the 2019 Quarter and 2018 Quarter, respectively. The total unvested restricted share awards at March 31, 2019 was 447,908 shares, which had a weighted average grant date fair value of $28.00 per share. As of March 31, 2019 , the total compensation cost related to unvested restricted share awards was $10.3 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, 2019
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 dilutive earnings per share calculation includes the dilutive impact of operating partnership units under the if-converted method and our share based awards with performance conditions prior to the grant date and all market condition awards under the contingently issuable method. The computations of basic and diluted earnings per share for the three months ended March 31, 2019 and 2018 were as follows (in thousands, except per share data): Three Months Ended March 31, 2019 2018 Numerator: Net (loss) income $ (4,405 ) $ 3,299 Net income attributable to noncontrolling interests in subsidiaries — — Allocation of earnings to unvested restricted share awards (134 ) (144 ) Adjusted net (loss) income attributable to the controlling interests $ (4,539 ) $ 3,155 Denominator: Weighted average shares outstanding – basic 79,881 78,483 Effect of dilutive securities: Operating partnership units — 12 Employee restricted share awards — 52 Weighted average shares outstanding – diluted 79,881 78,547 Basic net (loss) income attributable to the controlling interests per common share $ (0.06 ) $ 0.04 Diluted net (loss) income attributable to the controlling interests per common share $ (0.06 ) $ 0.04 Dividends declared per common share $ 0.30 $ 0.30

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2019
Segment Reporting [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 each segment’s performance. Net operating income is a key measurement of our segment profit and loss. Net operating income is defined as real estate rental revenue less real estate expenses. The following tables present revenues, net operating income, capital expenditures and total assets for the three months ended March 31, 2019 and 2018 from these segments, and reconcile net operating income of reportable segments to net (loss) income attributable to the controlling interests as reported (in thousands): Three Months Ended March 31, 2019 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 42,293 $ 16,546 $ 24,335 $ — $ 83,174 Real estate expenses 15,224 4,516 9,470 — 29,210 Net operating income $ 27,069 $ 12,030 $ 14,865 $ — $ 53,964 Depreciation and amortization (29,547 ) General and administrative expenses (7,429 ) Lease origination expenses (378 ) Interest expense (12,641 ) Real estate impairment (8,374 ) Net loss (4,405 ) Less: Net income attributable to noncontrolling interests in subsidiaries — Net loss attributable to the controlling interests $ (4,405 ) Capital expenditures $ 4,923 $ 555 $ 1,803 $ 67 $ 7,348 Total assets $ 1,238,795 $ 336,229 $ 796,525 $ 36,918 $ 2,408,467 Three Months Ended March 31, 2018 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 45,547 $ 15,671 $ 23,663 $ — $ 84,881 Real estate expenses 16,302 4,160 9,439 — 29,901 Net operating income $ 29,245 $ 11,511 $ 14,224 $ — $ 54,980 Depreciation and amortization (29,969 ) General and administrative expenses (5,821 ) Interest expense (12,827 ) Real estate impairment (1,886 ) Loss on extinguishment of debt (1,178 ) Net income 3,299 Less: Net income attributable to noncontrolling interests in subsidiaries — Net income attributable to the controlling interests $ 3,299 Capital expenditures $ 4,945 $ 475 $ 2,425 $ 172 $ 8,017 Total assets $ 1,361,880 $ 344,904 $ 769,643 $ 41,868 $ 2,518,295

Shareholders' Equity

Shareholders' Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Shareholders' Equity	SHAREHOLDERS' EQUITY On May 4, 2018, we entered into eight separate equity distribution agreements (collectively, the “Equity Distribution Agreements”) with each of Wells Fargo Securities, LLC, BNY Mellon Capital Markets, LLC, Capital One Securities, Inc., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC, J.P. Morgan Securities LLC, KeyBanc Capital Markets Inc. and SunTrust Robinson Humphrey, Inc. relating to the issuance of up to $250.0 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 each of the 2019 and 2018 Quarters, we issued 0 common shares under the Equity Distribution Agreements. 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 2018 Quarter, we issued 37,079 common shares under this program at a weighted average price of $28.16 per share, raising $0.7 million in net proceeds. During the 2019 Quarter, we issued 42,842 common shares under this program at a weighted average price of $25.84 per share, raising $1.1 million in net proceeds.

Subsequent Event

Subsequent Event	3 Months Ended
	Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Event	SUBSEQUENT EVENT On April 2, 2019, we entered into an agreement of sale to acquire a portfolio of seven multifamily properties, with an aggregate total of 2,113 units, for a contract purchase price of approximately $461.0 million . We expect to settle on the acquisitions, potentially in multiple closings, during the second quarter of 2019. We currently plan to fund the acquisitions through the disposition of select office or retail properties. In connection with the potential acquisitions, w e have obtained a financing commitment to provide an unsecured bridge loan facility in the original principal amount of $450.0 million (the “Bridge Facility”) to fund the potential acquisitions, pursuant to a commitment letter, dated April 2, 2019, from members of our bank group. The Bridge Facility will provide interim funding prior to completing the expected asset sales. As of April 29, 2019, the commitments for the Bridge Facility have not been funded.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies and Basis of Presentations (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
New Accounting Pronouncements	Pronouncements Adopted Standard/Description Effective Date and Adoption Considerations Effect on Financial Statements or Other significant Matters ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”). This standard amends existing lease accounting standards for both lessees and lessors. Lessees must classify most leases as either finance or operating leases. For lease contracts, or contracts with an embedded lease, with a duration of more than one year in which we are the lessee, the present value of future lease payments are recognized on our consolidated balance sheets as a right-of-use asset and a corresponding lease liability. Leases (Topic 842) - Targeted Improvements (“ASU 2018-11”), which provides lessors optional transition relief from implementing this aspect of ASU 2016-02 if the following criteria are met: (1) both components have the same timing and pattern of revenue and (2) if accounted for separately, both components would be classified as an operating lease. We adopted the new standard as of January 1, 2019. We adopted ASU 2016-02 as of January 1, 2019 using the modified retrospective approach and by applying the transitional practical expedients noted below. Under the modified retrospective approach, we recognized a cumulative effect adjustment of $0.9 million to retained earnings as of January 1, 2019 (see note 3 for further discussion of the impact of adoption on our consolidated financial statements). We did not elect the hindsight expedient, which would have allowed us to reevaluate lease terms in calculating lease liabilities as part of adoption. Under ASU 2018-11, the FASB offered optional transition relief, if elected as a package, and applied consistently by an entity to all of its leases. Accordingly, upon adoption we elected, as a package, the practical expedients for all leases as follows: (1) we will not reassess whether any expired or existing contracts are or contain leases, (2) we will not reassess the lease classification for any expired or existing leases, and (3) we will not reassess initial direct costs for any existing leases. Pronouncements Not Yet Adopted Standard/Description Effective Date and Adoption Considerations Effect on Financial Statements or Other significant Matters ASU 2016-13, Measurement of Credit Losses on Financial Instruments . This standard 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 our consolidated financial statements. ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software . This standard requires a customer in a cloud computing arrangement that is a service contract to follow the internal-use software guidance to determine which implementation costs to capitalize as assets. The standard is effective for public entities for fiscal years beginning after December 31, 2019 and for interim periods therein, with early adoption permitted. We are currently evaluating the impact the new standard may have on our consolidated financial statements.
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. 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 (“SEC”). 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, 2018 . Within these notes to the financial statements, we refer to the three months ended March 31, 2019 and March 31, 2018 as the “ 2019 Quarter” and the “ 2018 Quarter,” respectively.
Restricted Cash	Restricted Cash Restricted cash includes funds escrowed for tenant security deposits, real estate tax, insurance and mortgage escrows and escrow deposits required by lenders on certain of our properties to be used for future building renovations or tenant improvements.
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, 2019
Real Estate [Abstract]
Schedule of Future Minimum Rental Income	As of March 31, 2019, non-cancelable commercial operating leases provide for future minimum rental income as follows (in thousands). Apartment leases are not included as the terms are generally for one year or less. 2019 $ 192,841 2020 181,544 2021 159,607 2022 139,518 2023 114,521 Thereafter 343,439 $ 1,131,470
Schedule of Future Minimum Rental Income at Prior Year End	As of December 31, 2018, non-cancelable commercial operating leases provide for future minimum rental income as follows (in thousands): 2019 $ 191,252 2020 175,925 2021 153,395 2022 133,359 2023 108,564 Thereafter 304,876 $ 1,067,371
Schedule of Future Minimum Payments on Operating Ground Lease	The following table sets forth the undiscounted cash flows of our schedule obligations for future minimum payments on our operating ground lease at March 31, 2019 and a reconciliation of those cash flows to the operating lease liability at March 31, 2019 (in thousands): 2019 $ 195 2020 260 2021 260 2022 260 2023 260 2024 260 Thereafter 11,895 13,390 Imputed interest (9,233 ) Lease liability $ 4,157
Schedule of Real Estate Property Acquired	We did not execute any acquisitions during the 2019 Quarter. Properties and land for development acquired during the year ended December 31, 2018 were as follows: Acquisition Date Property Type # of units (unaudited) Rentable Square Feet (unaudited) Contract Purchase Price (in thousands) January 18, 2018 Arlington Tower Office N/A 391,000 $ 250,000
Schedule of Properties Sold	We sold our interests in the following properties in 2018 : Disposition Date Property Name Segment Rentable Square Feet/ Number of Units Contract Gain on Sale January 19, 2018 Braddock Metro Center Office 356,000 $ 93,000 $ — June 28, 2018 2445 M Street Office 292,000 101,600 2,495 Total 2018 648,000 $ 194,600 $ 2,495

Unsecured Line of Credit Paya_2

Unsecured Line of Credit Payable (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Schedule of Revolving Credit Facility	The amount of the Revolving Credit Facility’s unsecured line of credit unused and available at March 31, 2019 is as follows (in thousands): Committed capacity $ 700,000 Borrowings outstanding (228,000 ) Unused and available $ 472,000 We executed borrowings and repayments on the Revolving Credit Facility during the 2019 Quarter as follows (in thousands): Balance at December 31, 2018 $ 188,000 Borrowings 71,000 Repayments (31,000 ) Balance at March 31, 2019 $ 228,000

Derivative Instruments (Tables)

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Schedule of Fair Value of Derivatives	The fair values of the interest rate swaps as of March 31, 2019 and December 31, 2018 , are as follows (in thousands): Fair Value Derivative Assets (Liabilities) Derivative Instrument Aggregate Notional Amount Effective Date Maturity Date March 31, 2019 December 31, 2018 Interest rate swaps $ 150,000 October 15, 2015 March 15, 2021 $ 1,779 $ 2,720 Interest rate swaps 150,000 March 31, 2017 July 21, 2023 5,808 7,918 Interest rate swaps 100,000 June 29, 2018 July 21, 2023 (1,917 ) (799 ) $ 400,000 $ 5,670 $ 9,839
Schedule of Derivative Gains and Losses Recognized in Other Comprehensive Income	The interest rate swaps have been effective since inception. The net gains or losses on the effective swaps are recognized in other comprehensive (loss) income, as follows (in thousands): Three Months Ended March 31, 2019 2018 Unrealized (loss) gain on interest rate hedges $ (4,169 ) $ 4,065

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Financial Assets and Liabilities Measured at Fair Value	The fair values of these assets and liabilities at March 31, 2019 and December 31, 2018 were as follows (in thousands): March 31, 2019 December 31, 2018 Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Assets: SERP $ 1,476 $ — $ 1,476 $ — $ 1,364 $ — $ 1,364 $ — Interest rate swaps 7,587 — 7,587 — 10,638 — 10,638 — Liabilities: Interest rate swaps $ (1,917 ) $ — $ (1,917 ) $ — $ (799 ) $ — $ (799 ) $ —
Financial Assets and Liabilities Not Measured at Fair Value	As of March 31, 2019 and December 31, 2018 , the carrying values and estimated fair values of our financial instruments were as follows (in thousands): March 31, 2019 December 31, 2018 Carrying Value Fair Value Carrying Value Fair Value Cash and cash equivalents $ 12,025 $ 12,025 $ 6,016 $ 6,016 Restricted cash 1,368 1,368 1,624 1,624 Mortgage notes payable, net 58,805 59,973 59,792 60,398 Line of credit 228,000 228,000 188,000 188,000 Notes payable, net 995,750 1,018,430 995,397 1,015,210

Earnings per Common Share (Tabl

Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2019
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, 2019 and 2018 were as follows (in thousands, except per share data): Three Months Ended March 31, 2019 2018 Numerator: Net (loss) income $ (4,405 ) $ 3,299 Net income attributable to noncontrolling interests in subsidiaries — — Allocation of earnings to unvested restricted share awards (134 ) (144 ) Adjusted net (loss) income attributable to the controlling interests $ (4,539 ) $ 3,155 Denominator: Weighted average shares outstanding – basic 79,881 78,483 Effect of dilutive securities: Operating partnership units — 12 Employee restricted share awards — 52 Weighted average shares outstanding – diluted 79,881 78,547 Basic net (loss) income attributable to the controlling interests per common share $ (0.06 ) $ 0.04 Diluted net (loss) income attributable to the controlling interests per common share $ (0.06 ) $ 0.04 Dividends declared per common share $ 0.30 $ 0.30

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [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, 2019 and 2018 from these segments, and reconcile net operating income of reportable segments to net (loss) income attributable to the controlling interests as reported (in thousands): Three Months Ended March 31, 2019 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 42,293 $ 16,546 $ 24,335 $ — $ 83,174 Real estate expenses 15,224 4,516 9,470 — 29,210 Net operating income $ 27,069 $ 12,030 $ 14,865 $ — $ 53,964 Depreciation and amortization (29,547 ) General and administrative expenses (7,429 ) Lease origination expenses (378 ) Interest expense (12,641 ) Real estate impairment (8,374 ) Net loss (4,405 ) Less: Net income attributable to noncontrolling interests in subsidiaries — Net loss attributable to the controlling interests $ (4,405 ) Capital expenditures $ 4,923 $ 555 $ 1,803 $ 67 $ 7,348 Total assets $ 1,238,795 $ 336,229 $ 796,525 $ 36,918 $ 2,408,467 Three Months Ended March 31, 2018 Office Retail Multifamily Corporate and Other Consolidated Real estate rental revenue $ 45,547 $ 15,671 $ 23,663 $ — $ 84,881 Real estate expenses 16,302 4,160 9,439 — 29,901 Net operating income $ 29,245 $ 11,511 $ 14,224 $ — $ 54,980 Depreciation and amortization (29,969 ) General and administrative expenses (5,821 ) Interest expense (12,827 ) Real estate impairment (1,886 ) Loss on extinguishment of debt (1,178 ) Net income 3,299 Less: Net income attributable to noncontrolling interests in subsidiaries — Net income attributable to the controlling interests $ 3,299 Capital expenditures $ 4,945 $ 475 $ 2,425 $ 172 $ 8,017 Total assets $ 1,361,880 $ 344,904 $ 769,643 $ 41,868 $ 2,518,295

Nature of Business - Narrative

Nature of Business - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of distribution of ordinary taxable income	90.00%
Deferred tax liabilities, net	$ 0.6	$ 0.6
Taxable Reit Subsidiary [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred tax asset	1.4	1.4
Deferred tax asset, net of valuation allowance	$ 0	$ 0

Summary of Significant Accoun_3

Summary of Significant Accounting Policies and Basis of Presentations - Pronouncements Adopted (Details) $ in Thousands	Jan. 01, 2019USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment upon adoption of new accounting standard	$ 906
ASU No. 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect adjustment upon adoption of new accounting standard	$ 900

Real Estate - Leasing Narrative

Real Estate - Leasing Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leasing as a Lessor
Cumulative effect adjustment upon adoption of new accounting standard		$ 906
Leasing as a Lessee
Operating ground lease remaining lease term (in years)	52 years
Variable rental payments	$ 200
Lease liability	$ 4,157
Operating lease discount rate	5.90%
Right-of-use asset and lease liability amortization	$ 100
Prepaid expenses and other assets	$ 116,718		$ 132,322
Multifamily Properties
Leasing as a Lessor
Lessor operating lease terms (in years)	1 year
Commercial Office and Retail Properties
Leasing as a Lessor
Lessor operating lease terms (in years)	7 years
ASU No. 2016-02
Leasing as a Lessor
Cumulative effect adjustment upon adoption of new accounting standard		900
Leasing as a Lessee
Lease liability		4,200
Right-of-use asset		4,200
Below Market Ground Lease
Leasing as a Lessee
Accumulated amortization on lease intangible asset prior to derecognition			$ 2,100
Below Market Ground Lease | ASU No. 2016-02 | Reclassification Adjustment
Leasing as a Lessee
Below market ground lease reclassified		$ 10,000

Real Estate - Lessor Future Min

Real Estate - Lessor Future Minimum Rental Income (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Future Minimum Rental Income
2019	$ 192,841
2020	181,544
2021	159,607
2022	139,518
2023	114,521
Thereafter	343,439
Total	$ 1,131,470
Future Minimum Rental Income - Prior Year End
2019		$ 191,252
2020		175,925
2021		153,395
2022		133,359
2023		108,564
Thereafter		304,876
Total		$ 1,067,371

Real Estate - Lessee Scheduled

Real Estate - Lessee Scheduled Obligations (Details) $ in Thousands	Mar. 31, 2019USD ($)
Future Minimum Payments on Operating Ground Lease
2019	$ 195
2020	260
2021	260
2022	260
2023	260
2024	260
Thereafter	11,895
Total minimum payments due	13,390
Imputed interest	(9,233)
Lease liability	$ 4,157

Real Estate - Schedule of Acqui

Real Estate - Schedule of Acquisitions (Details) $ in Thousands	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jan. 18, 2018USD ($)ft²
Real Estate [Line Items]
Real Estate Investment Property, at Cost	$ 2,889,077	$ 2,886,585
Arlington Tower [Member]
Real Estate [Line Items]
Net Rentable Square Feet | ft²			391,000
Real Estate Investment Property, at Cost			$ 250,000

Real Estate - Development_Redev

Real Estate - Development/Redevelopment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Real Estate Properties [Line Items]
Properties under development or held for future development	$ 97,288		$ 87,231
Real Estate Investment Property, at Cost	2,889,077		$ 2,886,585
Real estate impairment	8,374	$ 1,886
The Trove [Member]
Real Estate Properties [Line Items]
Properties under development or held for future development	71,300
Riverside Developments [Member]
Real Estate Properties [Line Items]
Properties under development or held for future development	23,300
Spring Vally Retail Center [Member]
Real Estate Properties [Line Items]
Properties under development or held for future development	6,600
Real Estate Investment Property, at Cost	$ 4,300

Real Estate - Held for Sale and

Real Estate - Held for Sale and Sold Properties (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)ft²	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)ft²	Dec. 31, 2017USD ($)	Apr. 22, 2019USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Real estate impairment	$ 8,374	$ 1,886
M Street 2445 [Member] | Office Building [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Real estate impairment			$ 1,900	$ 24,100
Quantico Corporate Center [Member] | Office Building [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²	272,000
Real estate impairment	$ 8,400
Quantico Corporate Center [Member] | Office Building [Member] | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contract Sales Price					$ 33,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | M Street 2445 [Member] | Office Building [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Initial contracted sales price		100,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | 2018 Properties Sold Group [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contract Sales Price		$ 101,600
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | 2018 Properties Sold Group [Member] | Office Building [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²			648,000
Contract Sales Price			$ 194,600
Gain on Sale			$ 2,495
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | 2018 Properties Sold Group [Member] | Braddock Metro Center [Member] | Office Building [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²			356,000
Contract Sales Price			$ 93,000
Gain on Sale			$ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | 2018 Properties Sold Group [Member] | M Street 2445 [Member] | Office Building [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Rentable Square Feet | ft²			292,000

Unsecured Line of Credit Paya_3

Unsecured Line of Credit Payable - Narrative (Details)	3 Months Ended
	Mar. 31, 2019USD ($)extension_option	Dec. 31, 2018USD ($)	Mar. 29, 2018USD ($)	Jul. 22, 2016USD ($)	Sep. 15, 2015USD ($)
Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, notional amount	$ 400,000,000
2018 Term Loan
Line of Credit Facility [Line Items]
Debt instrument, fixed interest rate (percent)	2.87%
LIBOR
Line of Credit Facility [Line Items]
Debt instrument variable rate (percent)	2.49%
Line of Credit
Line of Credit Facility [Line Items]
Commitment fee (percent)	0.20%
Interest rate during period (percent)	1.00%
Line of Credit | Minimum
Line of Credit Facility [Line Items]
Commitment fee (percent)	0.10%
Line of Credit | Maximum
Line of Credit Facility [Line Items]
Commitment fee (percent)	0.30%
Line of Credit | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	1.00%
Line of Credit | LIBOR | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.775%
Line of Credit | LIBOR | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	1.55%
Line of Credit | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.00%
Line of Credit | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.55%
Line of Credit | Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.50%
2015 Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 150,000,000
2015 Term Loan | Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, notional amount					$ 150,000,000
Derivative, fixed interest rate (percent)					2.72%
2018 Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
2018 Term Loan | Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, fixed interest rate (percent)			2.87%
2018 Term Loan A | Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, notional amount			$ 150,000,000	$ 150,000,000
Derivative, fixed interest rate (percent)			2.31%
2018 Term Loan A | LIBOR | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.85%
2018 Term Loan A | LIBOR | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	1.75%
2018 Term Loan A | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.00%
2018 Term Loan A | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate (percent)	0.75%
2018 Term Loan B
Line of Credit Facility [Line Items]
Derivative, notional amount			$ 100,000,000
2018 Term Loan B | Interest Rate Swap
Line of Credit Facility [Line Items]
Derivative, notional amount			$ 100,000,000
Derivative, fixed interest rate (percent)			3.71%
Credit facility 2018
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 1,500,000,000
Credit facility 2018 | Line of Credit
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	$ 700,000,000
Debt instrument, term	4 years
Debt instrument, maturity date	Mar. 29, 2022
Number of extensions allowed | extension_option	2
Term of extension	6 months
Credit facility 2018 | 2015 Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 150,000,000
Credit facility 2018 | 2018 Term Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
Credit facility 2015 | Line of Credit
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity		$ 600,000,000

Unsecured Line of Credit Paya_4

Unsecured Line of Credit Payable - Schedule of Credit Unused and Available (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Line of Credit Facility [Line Items]
Borrowings outstanding	$ (228,000,000)	$ (188,000,000)
Credit facility 2018
Line of Credit Facility [Line Items]
Committed capacity	1,500,000,000
Line of Credit | Credit facility 2018
Line of Credit Facility [Line Items]
Committed capacity	700,000,000
Borrowings outstanding	(228,000,000)	$ (188,000,000)
Unused and available	$ 472,000,000

Unsecured Line of Credit Paya_5

Unsecured Line of Credit Payable - Borrowings and Repayments (Details)	3 Months Ended
	Mar. 31, 2019USD ($)
Line of Credit Facility, Increase (Decrease) During the Period [Roll Forward]
Balance at December 31, 2018	$ 188,000,000
Balance at March 31, 2019	228,000,000
Credit facility 2018
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	1,500,000,000
Line of Credit | Credit facility 2018
Line of Credit Facility [Line Items]
Line of credit, maximum borrowing capacity	700,000,000
Line of Credit Facility, Increase (Decrease) During the Period [Roll Forward]
Balance at December 31, 2018	188,000,000
Borrowings	71,000,000
Repayments	(31,000,000)
Balance at March 31, 2019	$ 228,000,000

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 29, 2018USD ($)arrangement	Jul. 22, 2016USD ($)arrangement	Sep. 15, 2015USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Estimated derivative gain (loss) to be reclassified within twelve months	$ 2,700
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount	400,000
Derivative Assets (Liabilities), at Fair Value, Net	5,670	$ 9,839
2015 Term Loan
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument, face amount	150,000
2015 Term Loan | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Number of derivative instruments held					2
Derivative, notional amount					$ 150,000
Derivative, fixed interest rate (percent)					2.72%
2016 Term Loan [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument, face amount				$ 150,000
2016 Term Loan [Member] | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Number of derivative instruments held | arrangement				2
Derivative, fixed interest rate (percent)				2.86%
2018 Term Loan
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument, face amount	$ 250,000
2018 Term Loan | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, fixed interest rate (percent)			2.87%
2018 Term Loan A | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount			$ 150,000	$ 150,000
Derivative, fixed interest rate (percent)			2.31%
2018 Term Loan B
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, notional amount			$ 100,000
2018 Term Loan B | Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Number of derivative instruments held | arrangement			4
Derivative, notional amount			$ 100,000
Derivative, fixed interest rate (percent)			3.71%

Derivative Instruments - Schedu

Derivative Instruments - Schedule of Fair Value of Interest Rate Swaps (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Mar. 29, 2018	Jul. 22, 2016	Sep. 15, 2015
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 400,000
Asset Derivatives	7,587		$ 10,638
Liability Derivatives	1,917		799
Derivative Assets (Liabilities), at Fair Value, Net	5,670		9,839
Unrealized (loss) gain on interest rate hedges	(4,169)	$ 4,065
2015 Term Loan | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount						$ 150,000
2015 Term Loan | Interest Rate Swap | Prepaid Expenses and Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	1,779		2,720
2018 Term Loan A | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount				$ 150,000	$ 150,000
2018 Term Loan A | Interest Rate Swap | Prepaid Expenses and Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	5,808		7,918
2018 Term Loan B
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount				100,000
2018 Term Loan B | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount				$ 100,000
2018 Term Loan B | Interest Rate Swap | Accounts Payable and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ (1,917)		$ (799)

Derivative Instruments - Sche_2

Derivative Instruments - Schedule of Gains and Losses on Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized (loss) gain on interest rate hedges	$ (4,169)	$ 4,065

Fair Value Disclosures - Financ

Fair Value Disclosures - Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Supplemental Employee Retirement Plan [Member]
Assets:
SERP	$ 1,476	$ 1,364
Supplemental Employee Retirement Plan [Member] | Level 1
Assets:
SERP	0	0
Supplemental Employee Retirement Plan [Member] | Level 2
Assets:
SERP	1,476	1,364
Supplemental Employee Retirement Plan [Member] | Level 3
Assets:
SERP	0	0
Interest Rate Swap
Assets:
Interest rate swaps	7,587	10,638
Liabilities:
Interest rate swaps	(1,917)	(799)
Interest Rate Swap | Level 1
Assets:
Interest rate swaps	0	0
Liabilities:
Interest rate swaps	0	0
Interest Rate Swap | Level 2
Assets:
Interest rate swaps	7,587	10,638
Liabilities:
Interest rate swaps	(1,917)	(799)
Interest Rate Swap | Level 3
Assets:
Interest rate swaps	0	0
Liabilities:
Interest rate swaps	$ 0	$ 0

Fair Value Disclosures - Fina_2

Fair Value Disclosures - Financial Assets and Liabilities Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 12,025	$ 6,016
Restricted cash	1,368	1,624
Mortgage notes payable, net	58,805	59,792
Line of credit	228,000	188,000
Notes payable, net	995,750	995,397
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	12,025	6,016
Restricted cash	1,368	1,624
Mortgage notes payable, net	59,973	60,398
Line of credit	228,000	188,000
Notes payable, net	$ 1,018,430	$ 1,015,210

Stock Based Compensation (Detai

Stock Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 2.8	$ 1.5
Restricted Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of share grants vested	$ 1.3	$ 0.7
Total unvested restricted share awards (in shares)	447,908
Weighted average grant date fair value (in dollars per share)	$ 28
Total compensation costs, non-vested restricted share awards	$ 10.3
Total compensation cost not yet recognized, period for recognition (in months)	28 months
Washington Real Estate Investment Trust 2016 Omnibus Incentive Plan [Member]
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, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net (loss) income	$ (4,405)	$ 3,299
Less: Net income attributable to noncontrolling interests in subsidiaries	0	0
Allocation of earnings to unvested restricted share awards	(134)	(144)
Net Income (Loss) Attributable to Parent, Diluted	$ (4,539)	$ 3,155
Weighted average shares outstanding - basic (in shares)	79,881	78,483
Operating partnership units	0	12
Employee restricted share awards	0	52
Weighted average shares outstanding - diluted (in shares)	79,881	78,547
Basic net income attributable to the controlling interests per common share (in dollars per share)	$ (0.06)	$ 0.04
Diluted net income attributable to the controlling interests per common share (in dollars per share)	(0.06)	0.04
Common Stock, Dividends, Per Share, Cash Paid	$ 0.30	$ 0.30

Segment Information - Segment S

Segment Information - Segment Schedules (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)segment	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	3
Segment Reporting Information [Line Items]
Real estate rental revenue	$ 83,174	$ 84,881
Real estate expenses	29,210	29,901
Net operating income	53,964	54,980
Depreciation and amortization	(29,547)	(29,969)
General and administrative expenses	(7,429)	(5,821)
Lease origination expenses	(378)	0
Interest expense	(12,641)	(12,827)
Real estate impairment	(8,374)	(1,886)
Loss on extinguishment of debt	0	(1,178)
Net (loss) income	(4,405)	3,299
Less: Net income attributable to noncontrolling interests in subsidiaries	0	0
Net loss attributable to the controlling interests	(4,405)	3,299
Capital expenditures	7,348	8,017
Total assets	2,408,467	2,518,295	$ 2,417,104
Office
Segment Reporting Information [Line Items]
Real estate rental revenue	42,293	45,547
Real estate expenses	15,224	16,302
Net operating income	27,069	29,245
Capital expenditures	4,923	4,945
Total assets	1,238,795	1,361,880
Retail
Segment Reporting Information [Line Items]
Real estate rental revenue	16,546	15,671
Real estate expenses	4,516	4,160
Net operating income	12,030	11,511
Capital expenditures	555	475
Total assets	336,229	344,904
Multifamily
Segment Reporting Information [Line Items]
Real estate rental revenue	24,335	23,663
Real estate expenses	9,470	9,439
Net operating income	14,865	14,224
Capital expenditures	1,803	2,425
Total assets	796,525	769,643
Corporate and Other
Segment Reporting Information [Line Items]
Real estate rental revenue	0	0
Real estate expenses	0	0
Net operating income	0	0
Capital expenditures	67	172
Total assets	$ 36,918	$ 41,868

Shareholders' Equity (Details)

Shareholders' Equity (Details)	3 Months Ended
	Mar. 31, 2019USD ($)$ / sharesshares	Mar. 31, 2018USD ($)$ / sharesshares	May 04, 2018USD ($)agreements
Class of Stock [Line Items]
Number of separate equity distribution agreements | agreements			8
Shares issued under dividend reinvestment program (in shares) | shares	42,842	37,079
Shares issued under dividend reinvestment program, weighted share price per share | $ / shares	$ 25.84	$ 28.16
Value of shares issued under dividend reinvestment program	$ 1,097,000	$ 717,000
Common Stock [Member]
Class of Stock [Line Items]
Capital shares reserved for future issuances			$ 250,000,000
Common shares issued | shares	0	0
Shares issued, average price per share | $ / shares		$ 0
Shares issued under dividend reinvestment program (in shares) | shares	43,000	37,000
Value of shares issued under dividend reinvestment program	$ 0	$ 0
Additional Paid-in Capital [Member]
Class of Stock [Line Items]
Proceeds from issuance of common shares		0
Value of shares issued under dividend reinvestment program	$ 1,097,000	$ 717,000

Subsequent Event (Details)

Subsequent Event (Details)	Apr. 29, 2019USD ($)	Apr. 02, 2019USD ($)propertiesunit	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Subsequent Event [Line Items]
Contract purchase price			$ 2,889,077,000	$ 2,886,585,000
Bridge Loan
Subsequent Event [Line Items]
Other Commitment	$ 0
Subsequent Event | Bridge Loan
Subsequent Event [Line Items]
Other Commitment		$ 450,000,000
Subsequent Event | Multifamily Properties | April 2019 Agreement of Sale Portfolio
Subsequent Event [Line Items]
Number of properties in portfolio to be acquired | properties		7
Number of units in portfolio to be acquired | unit		2,113
Contract purchase price		$ 461,000,000

Uncategorized Items - wre-20190

Label	Element	Value
Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (906,000)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(906,000)
2018 Term Loan A [Member]
Derivative, Notional Amount	invest_DerivativeNotionalAmount	$ 150,000,000
Derivative, Fixed Interest Rate	us-gaap_DerivativeFixedInterestRate	2.31%
2018 Term Loan A [Member] | credit facility 2018 [Member]
Debt Instrument, Face Amount	us-gaap_DebtInstrumentFaceAmount	$ 150,000,000
2018 Term Loan B [Member]
Derivative, Notional Amount	invest_DerivativeNotionalAmount	$ 100,000,000
Derivative, Fixed Interest Rate	us-gaap_DerivativeFixedInterestRate	3.71%