Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash Flows From Operating Activities
Net loss	$ (8,963)	$ (23,599)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	155,339	143,609
Impairment charges	0	6,204
Amortization of non-cash items within interest expense	7,978	6,803
Amortization of acquired above- and below-market leases, net	(5,615)	(2,953)
Amortization of acquired below-market ground leases	5,873	5,873
Straight-lining of rental revenue	(13,197)	(5,878)
Equity based compensation	15,416	20,174
Settlement of derivative contract	0	(20,281)
Loss on early extinguishment of debt	214	86
Increase (decrease) in cash flows due to changes in operating assets and liabilities:
Security deposits	(4,366)	20,697
Tenant and other receivables	(123)	(431)
Deferred leasing costs	(12,324)	(8,241)
Prepaid expenses and other assets	18,660	14,680
Accounts payable and accrued expenses	(1,285)	(1,699)
Deferred revenue and other liabilities	9,420	8,509
Net cash provided by operating activities	167,027	163,553
Cash Flows From Investing Activities
Development costs	(41)	(1,336)
Additions to building and improvements	(70,719)	(112,018)
Net cash used in investing activities	(70,760)	(113,354)
Cash Flows From Financing Activities
Repayment of mortgage notes payable	(3,053)	(2,939)
Proceeds from unsecured senior notes	0	175,000
Proceeds from unsecured term loan	0	175,000
Repayment of unsecured term loan	0	(50,000)
Proceeds from unsecured revolving credit facility	0	550,000
Repayment of unsecured revolving credit facility	0	(550,000)
Deferred financing costs	(7,559)	(3,585)
Repurchases of common shares	(10,043)	(121,950)
Private perpetual preferred unit distributions	(3,151)	(3,147)
Dividends paid to common stockholders	(12,124)	(37,181)
Distributions paid to non-controlling interests in the operating partnership	(7,309)	(25,041)
Net cash (used in) provided by financing activities	(43,239)	106,157
Net increase in cash and cash equivalents and restricted cash	53,028	156,356
Cash and cash equivalents and restricted cash—beginning of period	567,939	271,597
Cash and cash equivalents and restricted cash—end of period	620,967	427,953
Reconciliation of Cash and Cash Equivalents and Restricted Cash:
Cash and cash equivalents at beginning of period	526,714	233,946
Restricted cash at beginning of period	41,225	37,651
Cash and cash equivalents at end of period	582,188	373,088
Restricted cash at end of period	38,779	54,865
Cash and cash equivalents and restricted cash	620,967	427,953
Supplemental disclosures of cash flow information:
Cash paid for interest	58,208	57,170
Cash paid for income taxes	472	1,197
Non-cash investing and financing activities:
Building and improvements included in accounts payable and accrued expenses	53,956	63,984
Write-off of fully depreciated assets	10,798	54,992
Derivative instruments at fair values included in accounts payable and accrued expenses	4,887	10,222
Conversion of operating partnership units and Class B shares to Class A shares	7,766	23,903
Issuance of Series 2019 private perpetual preferred in exchange for common shares	$ 0	$ 789