Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2017		Sep. 30, 2016
Cash flows from operating activities
Net income		$ 111,778		$ 796,146
Income from discontinued operations, including gain on sale		0		(382,842)
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		195,781		187,379
Loss on early retirement of debt		323		0
Gain on sale of operating properties, including land		0		(295,397)
Distributions of income from joint ventures		4,791		5,006
Equity in income of joint ventures	[1]	(4,857)	[2]	(5,052)
Share-based compensation		13,248		15,511
Net change in operating accounts and other		12,807		24,166
Net cash from continuing operating activities		333,871		344,917
Net cash from discontinued operating activities		0		12,594
Net cash from operating activities		333,871		357,511
Cash flows from investing activities
Development and capital improvements		(219,817)		(262,669)
Acquisition of operating property		(58,267)		0
Proceeds from sales of operating properties, including land		0		515,754
Purchase of short-term investments		0		(100,000)
Maturities of short-term investments		100,000		0
Other		(1,946)		(4,813)
Net cash from continuing investing activities		(180,030)		148,272
Proceeds from Sale of Property Held-for-sale		0		622,982
Net cash from discontinued investing activities		0		(1,890)
Net cash from investing activities		(180,030)		769,364
Cash flows from financing activities
Borrowings on unsecured credit facility and other short-term borrowings		465,000		1,305,000
Repayments on unsecured credit facility and other short-term borrowings		(465,000)		(1,549,000)
Repayment of notes payable		(278,649)		(2,290)
Distributions to common shareholders and non-controlling interests		(207,831)		(580,542)
Proceeds from issuance of common shares		445,038		0
Common share options exercised		0		3,835
Other		1,227		1,967
Net cash from financing activities		(40,215)		(821,030)
Net increase (decrease) in cash, cash equivalents, and restricted cash		113,626		305,845
Total cash, cash equivalents, and restricted cash, beginning of the year		245,826		16,588
Total cash, cash equivalents, and restricted cash, end of the period		359,452		322,433
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Total cash, cash equivalents, and restricted cash		245,826		16,588
Supplemental information
Cash paid for interest, net of interest capitalized		64,455		62,995
Cash paid for income taxes		1,528		2,314
Supplemental schedule of noncash investing and financing activities
Value of shares issued under benefit plans, net of cancellations		18,154		19,103
Accrual associated with construction and capital expenditures		$ 17,505		$ 22,334

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

[2] Equity in income for the three and nine months ended September 30, 2017 includes our ownership interest of the hurricane related expenses of approximately $0.4 million.