Consolidated and Combined Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 41,348	$ 65,794	$ 109,335
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	58,299	54,897	55,404
Amortization of deferred financing costs	2,738	1,660	1,882
Real estate impairment loss	0	0	19,000
Amortization of below market leases, net	(7,907)	(8,762)	(8,159)
Straight-lining of rent	333	(1,559)	(2,718)
Share-based compensation expense	10,261	3,878	2,732
Non-cash separation costs paid by Vornado	17,403	0	0
Provision for doubtful accounts	1,526	1,032	666
Change in operating assets and liabilities:
Tenant and other receivables	(4)	(5,914)	46,952
Prepaid and other assets	(3,611)	(1,196)	14,705
Accounts payable and accrued expenses	11,300	(4,929)	934
Other liabilities	6,392	787	(206)
Net cash provided by operating activities	138,078	105,688	240,527
CASH FLOWS FROM INVESTING ACTIVITIES
Real estate additions	(36,290)	(39,509)	(24,926)
Acquisition of real estate	(30,125)	(6,077)	0
Decrease in cash held in escrow and restricted cash	925	1,082	(2,087)
Net cash used in investing activities	(65,490)	(44,504)	(27,013)
CASH FLOWS FROM FINANCING ACTIVITIES
Debt repayments	(44,654)	(42,481)	(367,704)
Contributions from (distributions to) Vornado	(227,732)	148,786	160,370
Dividends paid to shareholders	(79,167)	0	0
Distributions to redeemable noncontrolling interests	(4,918)	0	0
Debt issuance costs	(5,198)	(2,540)	(1,562)
Proceeds from borrowings	0	130,000	317,000
Net cash provided by financing activities	93,795	(63,807)	(212,636)
Net increase in cash and cash equivalents	166,383	(2,623)	878
Cash and cash equivalents at beginning of year	2,600	5,223	4,345
Cash and cash equivalents at end of year	168,983	2,600	5,223
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash payments for interest (includes amounts capitalized of $1,856, $0 and $0, respectively)	52,814	53,133	53,669
Cash payments for income taxes	1,907	1,342	1,751
NON-CASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures included in accounts payable and accrued expenses	8,699	1,592	277
Write off of fully depreciated assets	$ 10,588	$ 2,612	$ 64,224