Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities
Net income		$ 128,045	$ 120,387
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		250,734	222,269
Distributions of income from joint ventures		5,954	5,573
Equity in income of joint ventures	[1]	(5,954)	(5,644)
Share-based compensation		12,183	12,337
Settlement of forward interest rate swaps		(20,430)	0
Net change in operating accounts and other		37,903	21,028
Net cash from operating activities		408,435	375,950
Cash flows from investing activities
Development and capital improvements, including land		(300,661)	(272,340)
Acquisition of operating properties		(214,233)	(290,005)
Proceeds from sale of land		0	11,296
Increase in non-real estate assets		(13,793)	(12,436)
Decrease (increase) in Notes Receivables		(27)	9,475
Other		(770)	2,219
Net cash from investing activities		(529,484)	(551,791)
Cash flows from financing activities
Borrowings on unsecured credit facility and other short-term borrowings		1,167,000	62,000
Repayments on unsecured credit facility and other short-term borrowings		(1,167,000)	(8,000)
Repayment of notes payable		(440,103)	(1,072)
Proceeds from notes payable		593,409	0
Distributions to common shareholders and non-controlling interests		(236,489)	(223,029)
Proceeds from issuance of common shares		328,374	0
Payment of deferred financing costs		(6,009)	(752)
Payments to Noncontrolling Interests		0	(14,668)
Other		1,189	2,147
Net cash from financing activities		240,371	(183,374)
Net increase (decrease) in cash, cash equivalents, and restricted cash		119,322	(359,215)
Cash, cash equivalents, and restricted cash, beginning of year		43,603	377,805
Cash, cash equivalents, and restricted cash, end of period		162,925	18,590
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Total cash, cash equivalents, and restricted cash		43,603	377,805
Supplemental information
Cash paid for interest, net of interest capitalized		49,793	58,597
Cash paid for income taxes		1,209	1,954
Supplemental schedule of noncash investing and financing activities
Distributions declared but not paid		80,764	74,976
Value of shares issued under benefit plans, net of cancellations		18,388	17,841
Accrual associated with construction and capital expenditures		18,474	26,207
Right-of-use assets obtained in exchange for the use of new operating lease liabilities		$ 15,666	$ 0

[1] Equity in income excludes our ownership interest of fee income from various services provided by us to the Funds.