Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 45,641	$ 22,873
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, including amortization of debt issuance costs	27,401	29,323
Straight-lining of rental income	1,950	5,589
Stock-based compensation	394	394
Change in fair value of marketable securities	6,257	5,561
Changes in operating assets and liabilities:
Tenant and other receivables, net	(1,549)	(938)
Other assets	7,957	11,622
Amounts due to Vornado	3,981	(2,075)
Accounts payable and accrued expenses	8,375	(5,835)
Other liabilities	(454)	139
Net cash provided by operating activities	99,953	66,653
CASH FLOWS FROM INVESTING ACTIVITIES
Construction in progress and real estate additions	(6,566)	(2,514)
Repayment of Rego Park II loan participation	0	2,300
Net cash used in investing activities	(6,566)	(214)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends paid	(69,090)	(69,072)
Debt issuance costs	(15)	(185)
Debt repayments	0	(159,460)
Proceeds from borrowing	0	78,246
Net cash used in financing activities	(69,105)	(150,471)
Net increase (decrease) in cash and cash equivalents and restricted cash	24,282	(84,032)
Cash and cash equivalents and restricted cash at beginning of period	289,495	393,279
Cash and cash equivalents and restricted cash at end of period	313,777	309,247
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents at beginning of period	283,056	307,536
Restricted cash at beginning of period	6,439	85,743
Cash and cash equivalents and restricted cash at beginning of period	289,495	393,279
Cash and cash equivalents at end of period	304,229	303,710
Restricted cash at end of period	9,548	5,537
Cash and cash equivalents and restricted cash at end of period	313,777	309,247
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	26,898	27,728
NON-CASH TRANSACTIONS
Lease liability arising from the recognition of right-of-use asset	5,428	0
Reclassification of prepaid real estate taxes to construction in progress for property in redevelopment	1,466	0
Liability for real estate additions, including $18 and $26 for development fees due to Vornado in 2019 and 2018, respectively	233	36
Write-off of fully amortized and/or depreciated assets	$ 0	$ 13,791