Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 29,346	$ 43,780
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, including amortization of debt issuance costs	15,587	17,503
Net gain on sale of real estate	0	(9,124)
Straight-lining of rental income	3,948	5,019
Stock-based compensation expense	450	450
Change in fair value of marketable securities	0	(4,280)
Other non-cash adjustments	(611)	0
Change in operating assets and liabilities:
Tenant and other receivables, net	1,978	554
Other assets	23,699	(16,917)
Amounts due to Vornado	38	(276)
Accounts payable and accrued expenses	18,727	26,138
Other liabilities	166	(328)
Net cash provided by operating activities	93,328	62,519
CASH FLOWS FROM INVESTING ACTIVITIES
Construction in progress and real estate additions	(3,800)	(10,086)
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) provided by investing activities	(201,207)	2,805
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends paid	(46,120)	(46,100)
Debt issuance costs	(8)	(45)
Net cash used in financing activities	(46,128)	(46,145)
Net (decrease) increase in cash and cash equivalents	(154,007)	19,179
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	329,498	469,056
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	310,349	447,687
Restricted cash at end of period	19,149	21,369
Cash and cash equivalents and restricted cash at end of period	329,498	469,056
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	8,540	9,401
NON-CASH TRANSACTIONS
Liability for real estate additions, including $3 and $79 for development fees due to Vornado in 2022 and 2021, respectively	1,426	1,776
Write-off of fully depreciated assets	$ 23	$ 5,628