CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Net cash provided by operating activities:	$ 110,881	$ 106,021
Cash flows from investing activities:
Acquisition of real estate, including intangible assets	(136,776)	(152,474)
Investment in real estate under construction	0	(76,933)
Capital expenditures	(10,566)	(8,548)
Net proceeds from sale of properties	127,035	148,960
Net proceeds from sale of non-consolidated investment	0	6,127
Principal payments received on loans receivable	0	89,005
Investments in and advances to non-consolidated entities	(187)	(4,068)
Distributions from non-consolidated entities in excess of accumulated earnings	389	425
Increase in deferred leasing costs	(1,801)	(3,056)
Change in real estate deposits, net	(111)	11,683
Net cash provided by (used in) investing activities	(22,017)	11,121
Cash flows from financing activities:
Dividends to common and preferred shareholders	(88,471)	(85,895)
Principal amortization payments	(14,369)	(14,797)
Principal payments on debt, excluding normal amortization	0	(19,757)
Revolving credit facility borrowings	135,000	0
Revolving credit facility payments	(100,000)	0
Deferred financing costs	(493)	(292)
Payment of early extinguishment of debt charges	0	(55)
Proceeds of mortgages and notes payable	26,350	0
Cash distributions to noncontrolling interests	(1,920)	(1,755)
Issuance of common shares, net of costs and repurchases to settle tax obligations	(2,818)	16,848
Repurchase of common shares	(7,362)	0
Net cash used in financing activities	(54,083)	(105,703)
Change in cash, cash equivalents and restricted cash	34,781	11,439
Cash, cash equivalents and restricted cash, at beginning of period	112,156	117,779
Cash, cash equivalents and restricted cash, at end of period	146,937	129,218
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents at beginning of period	107,762	86,637
Cash and cash equivalents at end of period	75,373	93,279
Restricted cash at beginning of period	4,394	31,142
Restricted cash at end of period	71,564	35,939
LCIF [Member]
Net cash provided by operating activities:	19,179	21,180
Cash flows from investing activities:
Acquisition of real estate, including intangible assets	(44,110)	(24,317)
Investment in real estate under construction	0	(20,894)
Capital expenditures	(4,209)	(3,814)
Net proceeds from sale of properties	66,535	7,106
Investments in and advances to non-consolidated entities	0	(1,067)
Distributions from non-consolidated entities in excess of accumulated earnings	477	219
Increase in deferred leasing costs	2	(339)
Real estate deposits	(14)	(17)
Net cash provided by (used in) investing activities	18,681	(43,123)
Cash flows from financing activities:
Distributions to partners	(29,905)	(17,545)
Principal amortization payments	(624)	(525)
Deferred financing costs	(338)	0
Proceeds of mortgages and notes payable	26,350	0
Co-borrower debt payments, net	(5,000)	0
Related party advances, net	1,928	12,381
Net cash used in financing activities	(7,589)	(5,689)
Change in cash, cash equivalents and restricted cash	30,271	(27,632)
Cash, cash equivalents and restricted cash, at beginning of period	51,832	53,576
Cash, cash equivalents and restricted cash, at end of period	82,103	25,944
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents at beginning of period	50,900	52,031
Cash and cash equivalents at end of period	15,009	24,404
Restricted cash at beginning of period	932	1,545
Restricted cash at end of period	$ 67,094	$ 1,540