Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net income		$ 42,940	$ 121,065
Income from discontinued operations		(5,076)	(4,869)
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization		62,091	57,984
Gain on sale of operating properties, including land		(443)	(85,192)
Distributions of income from joint ventures		1,483	1,203
Equity in income of joint ventures	[1]	(1,497)	(1,382)
Share-based compensation		4,759	3,919
Net change in operating accounts and other		(16,920)	(25,060)
Net cash from continuing operating activities		87,337	67,668
Net cash from discontinued operating activities		9,173	8,868
Net cash from operating activities		96,510	76,536
Cash flows from investing activities
Development and capital improvements		(73,065)	(96,245)
Proceeds from sales of operating properties, including land		2,000	112,180
Other		(2,664)	(284)
Net cash from continuing investing activities		(73,729)	15,651
Net cash from discontinued investing activities		(3,671)	(1,509)
Net cash from investing activities		(77,400)	14,142
Cash flows from financing activities
Borrowings on unsecured credit facility and other short-term borrowings		966,000	0
Repayments on unsecured credit facility, other short-term borrowings and notes payable		(925,610)	(714)
Distributions to common shareholders and non-controlling interests		(64,249)	(60,386)
Purchase of non-controlling interests		0	(9,500)
Other		1,067	357
Net cash from continuing financing activities		(22,792)	(70,243)
Net increase (decrease) in cash and cash equivalents		(3,682)	20,435
Cash and cash equivalents, beginning of period		10,617	153,918
Cash and cash equivalents, end of period		6,935	174,353
Supplemental information
Cash paid for interest, net of interest capitalized		16,552	14,420
Supplemental schedule of noncash investing and financing activities
Distributions declared but not paid		69,020	64,261
Value of shares issued under benefit plans, net of cancellations		17,545	17,297
Net change in redemption of non-qualified share awards		6,810	2,412
Accrual associated with construction and capital expenditures		$ 30,157	$ 25,637

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