Segment Reporting - Components of Segment Net Income (Loss) for Each Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenues:
Rental revenue	$ 147,514	$ 140,231
Intercompany rental revenue	0	0
Observatory revenue	13,241	2,603
Lease termination fees	1,173	1,289
Third-party management and other fees	310	276
Other revenue and fees	1,796	905
Total revenues	164,034	145,304
Operating expenses:
Property operating expenses	38,644	30,279
Intercompany rent expense	0	0
Ground rent expense	2,331	2,331
General and administrative expenses	13,686	13,853
Observatory expenses	6,215	4,588
Real estate taxes	30,004	31,447
Depreciation and amortization	67,106	44,457
Total operating expenses	157,986	126,955
Total operating income	6,048	18,349
Other income (expense):
Interest income	149	122
Interest expense	(25,014)	(23,554)
Loss on early extinguishment of debt	0	(214)
Loss before income taxes	(18,817)	(5,297)
Income tax (expense) benefit	1,596	2,106
Net loss	(17,221)	(3,191)
Segment assets	4,243,330	4,151,523	$ 4,282,447
Expenditures for segment assets	39,175	23,335
Intersegment Elimination
Revenues:
Intercompany rental revenue	(10,620)	(4,932)
Total revenues	(10,620)	(4,932)
Operating expenses:
Intercompany rent expense	(10,620)	(4,932)
General and administrative expenses	0	0
Depreciation and amortization	0	0
Total operating expenses	(10,620)	(4,932)
Total operating income	0	0
Other income (expense):
Interest income	0	0
Interest expense	0	0
Loss on early extinguishment of debt		0
Loss before income taxes	0	0
Income tax (expense) benefit	0	0
Net loss	0	0
Segment assets	0	0
Expenditures for segment assets	0	0
Real Estate | Operating Segments
Revenues:
Rental revenue	147,514	140,231
Intercompany rental revenue	10,620	4,932
Lease termination fees	1,173	1,289
Third-party management and other fees	310	276
Other revenue and fees	1,796	905
Total revenues	161,413	147,633
Operating expenses:
Property operating expenses	38,644	30,279
Ground rent expense	2,331	2,331
General and administrative expenses	13,686	13,853
Real estate taxes	30,004	31,447
Depreciation and amortization	67,071	44,419
Total operating expenses	151,736	122,329
Total operating income	9,677	25,304
Other income (expense):
Interest income	149	120
Interest expense	(25,014)	(23,554)
Loss on early extinguishment of debt		(214)
Loss before income taxes	(15,188)	1,656
Income tax (expense) benefit	(144)	(283)
Net loss	(15,332)	1,373
Segment assets	3,998,791	3,910,152
Expenditures for segment assets	38,884	23,331
Observatory | Operating Segments
Revenues:
Intercompany rental revenue	0	0
Observatory revenue	13,241	2,603
Other revenue and fees	0
Total revenues	13,241	2,603
Operating expenses:
Intercompany rent expense	10,620	4,932
General and administrative expenses	0	0
Observatory expenses	6,215	4,588
Depreciation and amortization	35	38
Total operating expenses	16,870	9,558
Total operating income	(3,629)	(6,955)
Other income (expense):
Interest income	0	2
Interest expense	0	0
Loss on early extinguishment of debt		0
Loss before income taxes	(3,629)	(6,953)
Income tax (expense) benefit	1,740	2,389
Net loss	(1,889)	(4,564)
Segment assets	244,539	241,371
Expenditures for segment assets	$ 291	$ 4