Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Consolidated Operating Results by Quarter

The table below sets forth the unaudited consolidated operating results by quarter for the years ended December 31, 2013 and 2012 (in thousands, except per share information).


	For the Three Months Ended
	March 31,		June 30,		September 30,		December 31,
2013:
Revenues	$	1,585,710	$	1,474,377	$	1,645,132	$	1,817,623
Gross profit		238,273		241,284		273,053		302,843
Net income		76,857		74,726		98,409		171,317
Net income attributable to common stock		72,081		70,237		92,906		166,697
Net income from continuing operations attributable to common stock		72,081		70,237		92,906		166,697
Earnings per share from continuing operations attributable to common stock — basic and diluted	$	0.34	$	0.33	$	0.43	$	0.77
2012:
Revenues	$	1,328,764	$	1,386,162	$	1,532,001	$	1,673,342
Gross profit		186,064		212,904		252,000		286,739
Net income		49,994		69,797		100,856		102,009
Net income attributable to common stock		45,707		65,538		96,398		98,986
Net income from continuing operations attributable to common stock		45,798		57,918		83,628		102,350
Earnings per share from continuing operations attributable to common stock — basic and diluted	$	0.22	$	0.27	$	0.39	$	0.48