CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Cash Flows [Abstract]
Net cash provided by operating activities	$ 88,557	$ 110,881
Cash flows from investing activities:
Acquisition of real estate, including intangible assets	(259,867)	(136,776)
Capital expenditures	(8,636)	(10,566)
Net proceeds from sale of properties	119,406	127,035
Investments in non-consolidated entities	(1,120)	(187)
Distributions from non-consolidated entities in excess of accumulated earnings	6,943	389
Increase in deferred leasing costs	(4,673)	(1,801)
Change in real estate deposits, net	766	(111)
Net cash used in investing activities	(147,181)	(22,017)
Cash flows from financing activities:
Dividends to common and preferred shareholders	(70,722)	(88,471)
Principal amortization payments	(13,410)	(14,369)
Principal payments on debt, excluding normal amortization	(15,462)	0
Revolving credit facility borrowings	55,000	135,000
Revolving credit facility payments	0	(100,000)
Deferred financing costs	(3,678)	(493)
Payment of early extinguishment of debt charges	(1)	0
Proceeds from mortgages and notes payable	0	26,350
Cash distributions to noncontrolling interests	(1,661)	(1,920)
Repurchases to settle tax obligations	(4,135)	(2,818)
Repurchase of common shares	(3,598)	(7,362)
Net cash provided by (used in) financing activities	(57,667)	(54,083)
Change in cash, cash equivalents and restricted cash	(116,291)	34,781
Cash, cash equivalents and restricted cash, at beginning of period	177,247	112,156
Cash, cash equivalents and restricted cash, at end of period	60,956	146,937
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents at beginning of period	168,750	107,762
Cash and cash equivalents at end of period	43,789	75,373
Restricted cash at beginning of period	8,497	4,394
Restricted cash at end of period	$ 17,167	$ 71,564