Unaudited Condensed Consolidated Statement of Operations Statement (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues	$ 572,999	$ 533,165	$ 1,729,472	$ 1,619,301
Costs and expenses	(465,949)	(430,518)	(1,380,953)	(1,294,998)
Gross profits	107,050	102,647	348,519	324,303
General and administrative expenses	(23,863)	(26,860)	(77,381)	(80,086)
(Losses) gains on divestitures and impairment charges, net	(5,001)	(7,291)	(15,264)	5,831
Operating income	78,186	68,496	255,874	250,048
Interest expense	(33,038)	(31,497)	(100,476)	(96,281)
Loss on early extinguishment of debt, net	(1,355)	(9,066)	(3,504)	(9,357)
Other income (expense), net	249	688	969	3,077
Income before income taxes	44,042	28,621	152,863	147,487
Provision for income taxes	(9,027)	(9,941)	(51,181)	(57,255)
Net income	35,015	18,680	101,682	90,232
Net income attributable to noncontrolling interests	481	85	(1,329)	(270)
Net income attributable to common stockholders	$ 35,496	$ 18,765	$ 100,353	$ 89,962
Basic earnings per share:
Net income attributable to common stockholders, basic	$ 0.15	$ 0.08	$ 0.42	$ 0.36
Basic weighted average number of shares	232,917	246,214	237,037	250,762
Diluted earnings per share:
Net income attributable to common stockholders, diluted	$ 0.15	$ 0.08	$ 0.42	$ 0.36
Diluted weighted average number of shares	235,513	247,523	239,528	252,486
Dividends declared per share	$ 0.05	$ 0.04	$ 0.15	$ 0.12