Schedule III - Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 3,858,000
Initial cost to company, Land	1,966,237
Initial cost to company, Building and Improvements	5,430,368
Costs capitalized subsequent to acquisition, Building and Improvements	631,456
Gross amount at which carried at close of period, Land	1,966,237
Gross amount at which carried at close of period, Buildings and Improvements	6,061,824
Gross amount at which carried at close of period, Total	8,028,061	$ 7,963,315	$ 7,889,885
Accumulated depreciation and amortization	(1,112,977)	(966,697)	(790,216)
Costs capitalized subsequent to acquisition, Building and Improvements, other	21,638
Gross amount at which carried at close of period, Buildings and Improvements, other	21,638
Gross amount at which carried at close of period, other	21,638
Accumulated depreciation and amortization, other	$ (5,857)
Date acquired, other	Nov. 24, 2014
Real Estate:
Beginning balance	$ 7,963,315	7,889,885	7,793,784
Buildings and improvements	111,340	82,571	104,408
Assets sold and written-off	(46,594)	(9,141)	(8,307)
Ending balance	8,028,061	7,963,315	7,889,885
Accumulated Depreciation:
Beginning balance	966,697	790,216	617,974
Additions charged to expense	192,874	185,622	180,549
Accumulated depreciation related to assets sold and written-off	(46,594)	(9,141)	(8,307)
Ending balance	$ 1,112,977	$ 966,697	$ 790,216
Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed, other	5 years
Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed, other	40 years
1633 Broadway [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 1,250,000
Initial cost to company, Land	502,846
Initial cost to company, Building and Improvements	1,398,341
Costs capitalized subsequent to acquisition, Building and Improvements	162,478
Gross amount at which carried at close of period, Land	502,846
Gross amount at which carried at close of period, Buildings and Improvements	1,560,819
Gross amount at which carried at close of period, Total	2,063,665
Accumulated depreciation and amortization	$ (303,580)
Date of construction	Dec. 31, 1971
Date acquired	Nov. 30, 2014
Real Estate:
Ending balance	$ 2,063,665
Accumulated Depreciation:
Ending balance	$ 303,580
1633 Broadway [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
1633 Broadway [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
1301 Avenue of the Americas [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 860,000
Initial cost to company, Land	406,039
Initial cost to company, Building and Improvements	1,051,697
Costs capitalized subsequent to acquisition, Building and Improvements	115,915
Gross amount at which carried at close of period, Land	406,039
Gross amount at which carried at close of period, Buildings and Improvements	1,167,612
Gross amount at which carried at close of period, Total	1,573,651
Accumulated depreciation and amortization	$ (222,644)
Date of construction	Dec. 31, 1963
Date acquired	Nov. 30, 2014
Real Estate:
Ending balance	$ 1,573,651
Accumulated Depreciation:
Ending balance	$ 222,644
1301 Avenue of the Americas [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
1301 Avenue of the Americas [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
31 West 52nd Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 500,000
Initial cost to company, Land	221,318
Initial cost to company, Building and Improvements	604,994
Costs capitalized subsequent to acquisition, Building and Improvements	74,983
Gross amount at which carried at close of period, Land	221,318
Gross amount at which carried at close of period, Buildings and Improvements	679,977
Gross amount at which carried at close of period, Total	901,295
Accumulated depreciation and amortization	$ (122,721)
Date of construction	Dec. 31, 1987
Date acquired	Nov. 30, 2014
Real Estate:
Ending balance	$ 901,295
Accumulated Depreciation:
Ending balance	$ 122,721
31 West 52nd Street [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
31 West 52nd Street [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
1325 Avenue of the Americas [Member]
Real Estate And Accumulated Depreciation [Line Items]
Initial cost to company, Land	$ 174,688
Initial cost to company, Building and Improvements	370,553
Costs capitalized subsequent to acquisition, Building and Improvements	63,534
Gross amount at which carried at close of period, Land	174,688
Gross amount at which carried at close of period, Buildings and Improvements	434,087
Gross amount at which carried at close of period, Total	608,775
Accumulated depreciation and amortization	$ (82,821)
Date of construction	Dec. 31, 1989
Date acquired	Nov. 30, 2014
Real Estate:
Ending balance	$ 608,775
Accumulated Depreciation:
Ending balance	$ 82,821
1325 Avenue of the Americas [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
1325 Avenue of the Americas [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
900 Third Avenue [Member]
Real Estate And Accumulated Depreciation [Line Items]
Initial cost to company, Land	$ 103,741
Initial cost to company, Building and Improvements	296,031
Costs capitalized subsequent to acquisition, Building and Improvements	24,404
Gross amount at which carried at close of period, Land	103,741
Gross amount at which carried at close of period, Buildings and Improvements	320,435
Gross amount at which carried at close of period, Total	424,176
Accumulated depreciation and amortization	$ (60,642)
Date of construction	Dec. 31, 1983
Date acquired	Nov. 30, 2014
Real Estate:
Ending balance	$ 424,176
Accumulated Depreciation:
Ending balance	$ 60,642
900 Third Avenue [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
900 Third Avenue [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
New York [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 2,610,000
Initial cost to company, Land	1,408,632
Initial cost to company, Building and Improvements	3,721,616
Costs capitalized subsequent to acquisition, Building and Improvements	441,314
Gross amount at which carried at close of period, Land	1,408,632
Gross amount at which carried at close of period, Buildings and Improvements	4,162,930
Gross amount at which carried at close of period, Total	5,571,562
Accumulated depreciation and amortization	(792,408)
Real Estate:
Ending balance	5,571,562
Accumulated Depreciation:
Ending balance	792,408
One Market Plaza [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	975,000
Initial cost to company, Land	288,743
Initial cost to company, Building and Improvements	988,014
Costs capitalized subsequent to acquisition, Building and Improvements	94,621
Gross amount at which carried at close of period, Land	288,743
Gross amount at which carried at close of period, Buildings and Improvements	1,082,635
Gross amount at which carried at close of period, Total	1,371,378
Accumulated depreciation and amortization	$ (208,368)
Date of construction	Dec. 31, 1976
Date acquired	Nov. 30, 2014
Real Estate:
Ending balance	$ 1,371,378
Accumulated Depreciation:
Ending balance	$ 208,368
One Market Plaza [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
One Market Plaza [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
300 Mission Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 273,000
Initial cost to company, Land	141,097
Initial cost to company, Building and Improvements	343,819
Costs capitalized subsequent to acquisition, Building and Improvements	52,845
Gross amount at which carried at close of period, Land	141,097
Gross amount at which carried at close of period, Buildings and Improvements	396,664
Gross amount at which carried at close of period, Total	537,761
Accumulated depreciation and amortization	$ (56,473)
Date of construction	Dec. 31, 1968
Date acquired	Jul. 31, 2017
Real Estate:
Ending balance	$ 537,761
Accumulated Depreciation:
Ending balance	$ 56,473
300 Mission Street [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
300 Mission Street [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
One Front Street [Member]
Real Estate And Accumulated Depreciation [Line Items]
Initial cost to company, Land	$ 127,765
Initial cost to company, Building and Improvements	376,919
Costs capitalized subsequent to acquisition, Building and Improvements	21,038
Gross amount at which carried at close of period, Land	127,765
Gross amount at which carried at close of period, Buildings and Improvements	397,957
Gross amount at which carried at close of period, Total	525,722
Accumulated depreciation and amortization	$ (49,871)
Date of construction	Dec. 31, 1979
Date acquired	Dec. 31, 2016
Real Estate:
Ending balance	$ 525,722
Accumulated Depreciation:
Ending balance	$ 49,871
One Front Street [Member] | Minimum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	5 years
One Front Street [Member] | Maximum [Member]
Real Estate And Accumulated Depreciation [Line Items]
Life on which depreciation in latest income statement is computed	40 years
San Francisco [Member]
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances	$ 1,248,000
Initial cost to company, Land	557,605
Initial cost to company, Building and Improvements	1,708,752
Costs capitalized subsequent to acquisition, Building and Improvements	168,504
Gross amount at which carried at close of period, Land	557,605
Gross amount at which carried at close of period, Buildings and Improvements	1,877,256
Gross amount at which carried at close of period, Total	2,434,861
Accumulated depreciation and amortization	(314,712)
Real Estate:
Ending balance	2,434,861
Accumulated Depreciation:
Ending balance	$ 314,712