Income (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Income (Loss) Per Share [Abstract]

Basis for income per share computation

The following table presents the basis of the income (loss) per share computation:

	Years Ended December 31,
	2011			2010			2009
				(In thousands)
Numerator for basic and diluted income (loss) per share:
Income (loss) from continuing operations	$	115,253		$	69,298		$	(7,265	)
Loss from discontinued operations, net of tax		(908	)		(5,686	)		(17,636	)
Gain from disposal of discontinued operations, net of tax		—			44,847			—
Net income (loss)	$	114,345		$	108,459		$	(24,901	)
Denominator:
Denominator for basic income (loss) per share — weighted average shares		47,109			46,805			46,594
Effect of dilutive common stock equivalents		995			978			—
Denominator for diluted income (loss) per share — adjusted weighted average shares		48,104			47,783			46,594