Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income (Loss) Per Share

The following table sets forth the computation of basic and diluted earnings per share:

	Years ended December 31:
	2012			2013			2014
	(In thousands, except per share data)
Numerator:
Net income from continuing operations	$	3,106		$	46,841		$	61,951
Net (loss) income from discontinued operations	(21,897		)	(8,194		)	1,318
	$	(18,791	)	$	38,647		$	63,269
Denominator:

Denominator for basic earnings per share – weighted-average common shares outstanding	91,914			92,451			98,835
Effect of dilutive securities: Stock options and restricted shares	—			1,087			2,633
Denominator for diluted earnings per share – adjusted weighted-average shares and assumed exercise of options and restricted shares	91,914			93,538			101,468
Net income (loss) per common share - basic
Continuing operations	$	0.04		$	0.51		$	0.63
Discontinued operations	(0.24		)	(0.09		)	0.01
	$	(0.20	)	$	0.42		$	0.64
Net income (loss) per common share - diluted
Continuing operations	$	0.04		$	0.50		$	0.61
Discontinued operations	(0.24		)	(0.09		)	0.01
	$	(0.20	)	$	0.41		$	0.62