Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Rental revenue	$ 154,603	$ 149,339	$ 294,694	$ 296,853
Observatory revenue	33,433	27,368	55,587	40,609
Lease termination fees	0	18,859	0	20,032
Third-party management and other fees	381	326	808	636
Other revenue and fees	2,125	2,130	4,075	3,926
Total revenues	190,542	198,022	355,164	362,056
Operating expenses:
Property operating expenses	39,519	37,433	81,563	76,077
Ground rent expenses	2,332	2,332	4,663	4,663
General and administrative expenses	16,075	15,876	31,783	29,562
Observatory expenses	8,657	7,776	16,512	13,991
Real estate taxes	31,490	29,802	63,278	59,806
Depreciation and amortization	46,280	58,304	93,688	125,410
Total operating expenses	144,353	151,523	291,487	309,509
Total operating income (loss)	46,189	46,499	63,677	52,547
Other income (expense):
Interest income	3,339	431	5,934	580
Interest expense	(25,405)	(25,042)	(50,709)	(50,056)
Gain on disposition of property	13,565	27,170	29,261	27,170
Income (loss) before income taxes	37,688	49,058	48,163	30,241
Income tax benefit (expense)	(733)	(363)	486	1,233
Net income	36,955	48,695	48,649	31,474
Net (income) loss attributable to non-controlling interests:
Non-controlling interests in the Operating Partnership	(14,049)	(18,224)	(18,217)	(11,305)
Non-controlling interests in other partnerships	(1)	159	42	222
Private perpetual preferred unit distributions	(1,051)	(1,051)	(2,101)	(2,101)
Net income attributable to common stockholders	$ 21,854	$ 29,579	$ 28,373	$ 18,290
Total weighted average shares:
Basic (in shares)	160,028	167,118	160,669	168,099
Diluted (in shares)	264,196	270,085	264,736	271,837
Earnings per share attributable to common stockholders:
Basic (in USD per share)	$ 0.14	$ 0.18	$ 0.18	$ 0.11
Diluted (in USD per share)	0.14	0.18	0.18	0.11
Dividends per share (in USD per share)	$ 0.035	$ 0.035	$ 0.070	$ 0.070