Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 22,873	$ 62,626
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, including amortization of debt issuance costs	29,323	27,049
Straight-lining of rental income	5,589	3,223
Stock-based compensation	394	394
Change in fair value of marketable securities (see Note 7)	5,561	0
Changes in operating assets and liabilities:
Tenant and other receivables, net	(938)	(947)
Other assets	11,622	(14,209)
Amounts due to Vornado	(2,075)	(334)
Accounts payable and accrued expenses	(5,835)	(5,571)
Other liabilities	139	(21)
Net cash provided by operating activities	66,653	72,210
CASH FLOWS FROM INVESTING ACTIVITIES
Construction in progress and real estate additions	(2,514)	(3,155)
Rego Park II loan participation payment	0	(200,000)
Principal repayment proceeds from Rego Park II loan participation	2,300	725
Net cash used in investing activities	(214)	(202,430)
CASH FLOWS FROM FINANCING ACTIVITIES
Debt repayments	(159,460)	(302,754)
Proceeds from borrowing	78,246	500,000
Dividends paid	(69,072)	(65,218)
Debt issuance costs	(185)	(11,972)
Net cash (used in) provided by financing activities	(150,471)	120,056
Net decrease in cash and cash equivalents and restricted cash	(84,032)	(10,164)
Cash and cash equivalents and restricted cash at beginning of period	393,279	374,678
Cash and cash equivalents and restricted cash at end of period	309,247	364,514
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH
Cash and cash equivalents at beginning of period	307,536	288,926
Restricted cash at beginning of period	85,743	85,752
Cash and cash equivalents and restricted cash at beginning of period	393,279	374,678
Cash and cash equivalents at end of period	303,710	280,010
Restricted cash at end of period	5,537	84,504
Cash and cash equivalents and restricted cash at end of period	309,247	364,514
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest	27,728	19,358
NON-CASH TRANSACTIONS
Write-off of fully amortized and/or depreciated assets	13,791	4,265
Liability for real estate additions, including $26 and $24 for development fees due to Vornado in 2018 and 2017, respectively	$ 36	$ 124