v3.25.2
Revenue Recognition (Schedule of Revenues by Segment) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disaggregation of Revenue [Line Items]        
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Total revenues Total revenues Total revenues Total revenues
Lease income $ 368,176 $ 379,247 $ 757,126 $ 754,846
Total revenues 441,437 450,266 903,016 886,641
Rental revenues        
Disaggregation of Revenue [Line Items]        
Total revenues 382,252 393,595 787,007 782,873
Lease revenues        
Disaggregation of Revenue [Line Items]        
Lease income 368,176 379,247 757,126 754,846
Property rentals        
Disaggregation of Revenue [Line Items]        
Lease income 360,167 372,186 742,681 742,069
Trade shows        
Disaggregation of Revenue [Line Items]        
Lease income 6,415 7,061 12,851 12,777
Sales-type lease income        
Disaggregation of Revenue [Line Items]        
Lease income 1,594 0 1,594 0
Tenant services        
Disaggregation of Revenue [Line Items]        
Revenue 9,084 9,604 20,019 18,632
Parking revenues        
Disaggregation of Revenue [Line Items]        
Revenue 4,992 4,744 9,862 9,395
Fee and other income        
Disaggregation of Revenue [Line Items]        
Revenue 59,185 56,671 116,009 103,768
Total revenues 59,185 56,671 116,009 103,768
BMS cleaning fees        
Disaggregation of Revenue [Line Items]        
Revenue 37,431 38,465 73,907 74,245
Management and leasing fees        
Disaggregation of Revenue [Line Items]        
Revenue 2,926 6,709 5,956 9,320
Other income        
Disaggregation of Revenue [Line Items]        
Revenue 18,828 11,497 36,146 20,203
New York        
Disaggregation of Revenue [Line Items]        
Total revenues 358,167 367,578 734,373 725,812
New York | Rental revenues        
Disaggregation of Revenue [Line Items]        
Total revenues 303,390 312,903 627,689 624,638
New York | Lease revenues        
Disaggregation of Revenue [Line Items]        
Lease income 292,943 302,780 605,245 604,311
New York | Property rentals        
Disaggregation of Revenue [Line Items]        
Lease income 291,349 302,780 603,651 604,311
New York | Trade shows        
Disaggregation of Revenue [Line Items]        
Lease income 0 0 0 0
New York | Sales-type lease income        
Disaggregation of Revenue [Line Items]        
Lease income 1,594 0 1,594 0
New York | Tenant services        
Disaggregation of Revenue [Line Items]        
Revenue 6,506 6,373 14,679 12,920
New York | Parking revenues        
Disaggregation of Revenue [Line Items]        
Revenue 3,941 3,750 7,765 7,407
New York | Fee and other income        
Disaggregation of Revenue [Line Items]        
Revenue 54,777 54,675 106,684 101,174
New York | BMS cleaning fees        
Disaggregation of Revenue [Line Items]        
Revenue 39,744 40,689 78,241 79,329
New York | Management and leasing fees        
Disaggregation of Revenue [Line Items]        
Revenue 3,150 6,911 6,355 9,623
New York | Other income        
Disaggregation of Revenue [Line Items]        
Revenue 11,883 7,075 22,088 12,222
Other        
Disaggregation of Revenue [Line Items]        
Total revenues 83,270 82,688 168,643 160,829
Other | Rental revenues        
Disaggregation of Revenue [Line Items]        
Total revenues 78,862 80,692 159,318 158,235
Other | Lease revenues        
Disaggregation of Revenue [Line Items]        
Lease income 75,233 76,467 151,881 150,535
Other | Property rentals        
Disaggregation of Revenue [Line Items]        
Lease income 68,818 69,406 139,030 137,758
Other | Trade shows        
Disaggregation of Revenue [Line Items]        
Lease income 6,415 7,061 12,851 12,777
Other | Sales-type lease income        
Disaggregation of Revenue [Line Items]        
Lease income 0 0 0 0
Other | Tenant services        
Disaggregation of Revenue [Line Items]        
Revenue 2,578 3,231 5,340 5,712
Other | Parking revenues        
Disaggregation of Revenue [Line Items]        
Revenue 1,051 994 2,097 1,988
Other | Fee and other income        
Disaggregation of Revenue [Line Items]        
Revenue 4,408 1,996 9,325 2,594
Other | BMS cleaning fees        
Disaggregation of Revenue [Line Items]        
Revenue (2,313) (2,224) (4,334) (5,084)
Other | Management and leasing fees        
Disaggregation of Revenue [Line Items]        
Revenue (224) (202) (399) (303)
Other | Other income        
Disaggregation of Revenue [Line Items]        
Revenue $ 6,945 $ 4,422 $ 14,058 $ 7,981