Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows From Operating Activities
Net income (loss)	$ (13,037)	$ (22,889)	$ 84,290
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	201,806	191,006	181,588
Impairment charges	7,723	6,204	0
Amortization of non-cash items within interest expense	10,862	9,482	7,328
Amortization of acquired above and below-market leases, net	(5,896)	(3,627)	(7,311)
Amortization of acquired below-market ground leases	7,831	7,831	7,831
Straight-lining of rental revenue	(21,078)	(5,238)	(20,057)
Equity based compensation	20,260	25,495	20,857
Settlement of derivative contract	0	(20,281)	(11,802)
Loss on early extinguishment of debt	214	86	0
Increase (decrease) in cash flows due to changes in operating assets and liabilities:
Security deposits	(1,052)	(151)	(27,243)
Tenant and other receivables	2,894	3,881	4,015
Deferred leasing costs	(16,090)	(14,464)	(30,895)
Prepaid expenses and other assets	5,814	(11,730)	(3,643)
Accounts payable and accrued expenses	(99)	(3,305)	427
Deferred revenue and other liabilities	12,334	19,993	27,206
Net cash provided by operating activities	212,486	182,293	232,591
Cash Flows From Investing Activities
Short-term investments	0	0	400,000
Additions to building and improvements	(95,037)	(143,118)	(250,256)
Development costs	(165)	0	0
Acquisition of real estate property	(117,540)	0	0
Net cash (used in) provided by investing activities	(212,742)	(143,118)	149,744
Cash Flows From Financing Activities
Proceeds from mortgage notes payable	0	180,000	0
Repayment of mortgage notes payable	(4,091)	(3,938)	(3,790)
Proceeds from unsecured senior notes	0	175,000	0
Repayment of unsecured senior notes	0	0	(250,000)
Proceeds from unsecured term loan	0	175,000	0
Repayment of unsecured term loan	0	(50,000)	0
Proceeds from unsecured revolving credit facility	0	550,000	0
Repayment of unsecured revolving credit facility	0	(550,000)	0
Deferred financing costs	(9,486)	(10,135)	0
Repurchases of common shares	(46,704)	(143,713)	0
Private perpetual preferred unit distributions	(4,201)	(4,197)	(1,743)
Dividends paid to common stockholders	(18,110)	(37,181)	(75,192)
Distributions paid to noncontrolling interests in the operating partnership	(10,453)	(23,669)	(50,826)
Net cash provided by (used in) financing activities	(93,045)	257,167	(381,551)
Net increase (decrease) in cash and cash equivalents and restricted cash	(93,301)	296,342	784
Cash and cash equivalents and restricted cash—beginning of period	567,939	271,597	270,813
Cash and cash equivalents and restricted cash—end of period	474,638	567,939	271,597
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Cash and cash equivalents at beginning of period	526,714	233,946	204,981
Restricted cash at beginning of period	41,225	37,651	65,832
Cash and cash equivalents and restricted cash—end of period	423,695	526,714	233,946
Restricted cash at end of period	50,943	41,225	37,651
Cash and cash equivalents and restricted cash	474,638	567,939	271,597
Supplemental disclosures of cash flow information:
Cash paid for interest	77,610	75,416	76,333
Interest capitalized	0	0	1,433
Cash paid for income taxes	644	1,282	1,766
Non-cash investing and financing activities:
Building and improvements included in accounts payable and accrued expenses	49,247	58,057	90,910
Write-off of fully depreciated assets	31,341	79,527	30,977
Derivative instruments at fair values included in accounts payable and accrued expenses	25,308	8,849	13,330
Conversion of operating partnership units and Class B shares to Class A shares	10,426	29,863	27,495
Issuance of Series 2019 private perpetual preferred in exchange for common units	0	789	21,147
Right of use assets	0	0	29,452
Ground lease liabilities	0	0	29,452
Debt assumed with the acquisition of real estate properties	177,453	0	0
Contribution from other partnerships	$ 13,269	$ 0	$ 0