Quarterly Operating Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2011

Quarterly Operating Results (Unaudited) [Abstract]

Quarterly Operating Results (Unaudited)

2011	1st			2nd			3rd			4th			Year
	(In thousands, except days and per share amounts)
Number of days in quarter		93			91			91			90			365
Revenues	$	461,628		$	536,251		$	519,713		$	464,361		$	1,981,953
Gross profit		130,455			156,614			152,751			131,999			571,819
Operating income		42,073			58,212			51,863			34,858			187,006
Income from continuing operations		22,018			34,881			31,365			26,989			115,253
Loss from discontinued operations, net of tax		(128	)		(156	)		(162	)		(462	)		(908	)
Net income		21,890			34,725			31,203			26,527			114,345
Basic income (loss) per share
Continuing operations	$	0.47		$	0.73		$	0.66		$	0.58		$	2.45
Discontinued operations		(0.01	)		—			—			(0.01	)		(0.02	)
Net income	$	0.46		$	0.73		$	0.66		$	0.57		$	2.43
Diluted income (loss) per share
Continuing operations	$	0.46		$	0.72		$	0.65		$	0.57		$	2.40
Discontinued operations		(0.01	)		—			—			(0.01	)		(0.02	)
Net income	$	0.45		$	0.72		$	0.65		$	0.56		$	2.38
2010	1st			2nd			3rd			4th			Year
	(In thousands, except days and per share amounts)
Number of days in quarter		94			91			91			89			365
Revenues	$	384,424		$	410,563		$	396,927		$	425,176		$	1,617,090
Gross profit		110,410			117,304			118,184			121,396			467,294
Operating income		31,295			39,610			41,586			16,698			129,189
Income from continuing operations		14,330			21,585			22,644			10,739			69,298
Gain (loss) from discontinued operations, net of tax		(2,583	)		(1,913	)		(2,039	)		849			(5,686	)
Gain on disposal of discontinued operations, net of tax		—			—			—			44,847			44,847
Net income		11,747			19,672			20,605			56,435			108,459
Basic income (loss) per share
Continuing operations	$	0.31		$	0.46		$	0.48		$	0.23		$	1.48
Discontinued operations		(0.06	)		(0.04	)		(0.04	)		0.02			(0.11	)
Disposal of discontinued operations		—			—			—			0.95			0.95
Net income	$	0.25		$	0.42		$	0.44		$	1.20		$	2.32
Diluted income (loss) per share
Continuing operations	$	0.30		$	0.45		$	0.47		$	0.22		$	1.45
Discontinued operations		(0.05	)		(0.04	)		(0.04	)		0.02			(0.11	)
Disposal of discontinued operations		—			—			—			0.93			0.93
Net income	$	0.25		$	0.41		$	0.43		$	1.17		$	2.27