Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 44,455	$ 55,181
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, including amortization of debt issuance costs	23,510	26,923
Net gain on sale of real estate	0	(9,124)
Straight-lining of rental income	6,028	7,411
Stock-based compensation expense	450	450
Change in fair value of marketable securities	0	(3,411)
Other non-cash adjustments	(1,420)	0
Change in operating assets and liabilities:
Tenant and other receivables, net	1,031	1,497
Other assets	(9,412)	(9,146)
Amounts due to Vornado	(230)	1,032
Accounts payable and accrued expenses	11,540	20,601
Other liabilities	251	(495)
Net cash provided by operating activities	76,203	90,919
CASH FLOWS FROM INVESTING ACTIVITIES
Construction in progress and real estate additions	(8,710)	(14,711)
Proceeds from sale of real estate	0	9,291
Return of short-term investment	0	3,600
Purchase of U.S. Treasury bills	(197,407)	0
Net cash used in investing activities	(206,117)	(1,820)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends paid	(69,192)	(69,160)
Debt issuance costs	(8)	(45)
Net cash used in financing activities	(69,200)	(69,205)
Net (decrease) increase in cash and cash equivalents	(199,114)	19,894
Cash and cash equivalents and restricted cash at beginning of period	483,505	449,877
Cash and cash equivalents and restricted cash at end of period	284,391	469,771
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents at beginning of period	463,539	428,710
Restricted cash at beginning of period	19,966	21,167
Cash and cash equivalents and restricted cash at beginning of period	483,505	449,877
Cash and cash equivalents at end of period	264,872	448,913
Restricted cash at end of period	19,519	20,858
Cash and cash equivalents and restricted cash at end of period	284,391	469,771
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	15,808	14,182
NON-CASH TRANSACTIONS
Liability for real estate additions, including $3 and $109 for development fees due to Vornado in 2022 and 2021, respectively	2,277	1,832
Write-off of fully depreciated assets	$ 23	$ 5,628