Segment Reporting - Components of Segment Net Income (Loss) for Each Segment (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Revenues:
Rental revenue		$ 148,290	$ 139,558	$ 445,143	$ 420,586
Intercompany rental revenue		0	0	0	0
Observatory revenue		33,051	12,796	73,660	23,758
Lease termination fees		0	11,321	20,032	15,949
Third-party management and other fees		389	314	1,025	917
Other revenue and fees		1,982	1,059	5,908	2,550
Total revenues		183,712	165,048	545,768	463,760
Operating expenses:
Property operating expenses		42,798	33,357	118,875	92,429
Intercompany rent expense		0	0	0	0
Ground rent expense		2,331	2,331	6,994	6,994
General and administrative expenses		15,725	14,427	45,287	42,369
Observatory expenses		8,516	6,370	22,507	16,226
Real estate taxes		31,831	29,566	91,637	92,367
Depreciation and amortization		46,984	65,794	172,394	155,339
Total operating expenses		148,185	151,845	457,694	405,724
Total operating income (loss)		35,527	13,203	88,074	58,036
Other income (expense):
Interest income		1,564	211	2,144	497
Interest expense		(25,516)	(23,577)	(75,572)	(70,553)
Loss on early extinguishment of debt		0	0	0	(214)
Gain on disposition of property	$ 27,200	0	0	27,170	0
Income (loss) before income taxes		11,575	(10,163)	41,816	(12,234)
Income tax (expense) benefit		(1,457)	(20)	(224)	3,271
Net income (loss)		10,118	(10,183)	41,592	(8,963)
Segment assets		4,201,140	4,112,163	4,201,140	4,112,163	$ 4,282,447
Expenditures for segment assets		18,710	21,349	71,110	64,659
Intersegment Elimination
Revenues:
Rental revenue		0	0	0	0
Intercompany rental revenue		(19,072)	(5,310)	(46,801)	(16,271)
Observatory revenue		0	0	0	0
Lease termination fees		0	0	0	0
Third-party management and other fees		0	0	0	0
Other revenue and fees		0	0	0	0
Total revenues		(19,072)	(5,310)	(46,801)	(16,271)
Operating expenses:
Property operating expenses		0	0	0	0
Intercompany rent expense		(19,072)	(5,310)	(46,801)	(16,271)
Ground rent expense		0	0	0	0
General and administrative expenses		0	0	0	0
Observatory expenses		0	0	0	0
Real estate taxes		0	0	0	0
Depreciation and amortization		0	0	0	0
Total operating expenses		(19,072)	(5,310)	(46,801)	(16,271)
Total operating income (loss)		0	0	0	0
Other income (expense):
Interest income		0	0	0	0
Interest expense		0	0	0	0
Loss on early extinguishment of debt					0
Gain on disposition of property		0		0
Income (loss) before income taxes		0	0	0	0
Income tax (expense) benefit		0	0	0	0
Net income (loss)		0	0	0	0
Segment assets		0	0	0	0
Expenditures for segment assets		0	0	0	0
Real Estate | Operating Segments
Revenues:
Rental revenue		148,290	139,558	445,143	420,586
Intercompany rental revenue		19,072	5,310	46,801	16,271
Observatory revenue		0	0	0	0
Lease termination fees		0	11,321	20,032	15,949
Third-party management and other fees		389	314	1,025	917
Other revenue and fees		1,982	921	5,908	2,412
Total revenues		169,733	157,424	518,909	456,135
Operating expenses:
Property operating expenses		42,798	33,357	118,875	92,429
Intercompany rent expense		0	0	0	0
Ground rent expense		2,331	2,331	6,994	6,994
General and administrative expenses		15,725	14,427	45,287	42,369
Observatory expenses		0	0	0	0
Real estate taxes		31,831	29,566	91,637	92,367
Depreciation and amortization		46,933	65,759	172,258	155,244
Total operating expenses		139,618	145,440	435,051	389,403
Total operating income (loss)		30,115	11,984	83,858	66,732
Other income (expense):
Interest income		1,530	211	2,105	494
Interest expense		(25,516)	(23,577)	(75,572)	(70,553)
Loss on early extinguishment of debt					(214)
Gain on disposition of property		0		27,170
Income (loss) before income taxes		6,129	(11,382)	37,561	(3,541)
Income tax (expense) benefit		(359)	53	(541)	(365)
Net income (loss)		5,770	(11,329)	37,020	(3,906)
Segment assets		3,950,883	3,870,142	3,950,883	3,870,142
Expenditures for segment assets		18,686	21,349	70,795	64,655
Observatory | Operating Segments
Revenues:
Rental revenue		0	0	0	0
Intercompany rental revenue		0	0	0	0
Observatory revenue		33,051	12,796	73,660	23,758
Lease termination fees		0	0	0	0
Third-party management and other fees		0	0	0	0
Other revenue and fees		0	138	0	138
Total revenues		33,051	12,934	73,660	23,896
Operating expenses:
Property operating expenses		0	0	0	0
Intercompany rent expense		19,072	5,310	46,801	16,271
Ground rent expense		0	0	0	0
General and administrative expenses		0	0	0	0
Observatory expenses		8,516	6,370	22,507	16,226
Real estate taxes		0	0	0	0
Depreciation and amortization		51	35	136	95
Total operating expenses		27,639	11,715	69,444	32,592
Total operating income (loss)		5,412	1,219	4,216	(8,696)
Other income (expense):
Interest income		34	0	39	3
Interest expense		0	0	0	0
Loss on early extinguishment of debt					0
Gain on disposition of property		0		0
Income (loss) before income taxes		5,446	1,219	4,255	(8,693)
Income tax (expense) benefit		(1,098)	(73)	317	3,636
Net income (loss)		4,348	1,146	4,572	(5,057)
Segment assets		250,257	242,021	250,257	242,021
Expenditures for segment assets		$ 24	$ 0	$ 315	$ 4