Net Income (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Calculation of Diluted Net Income (Loss) Per Common Share

The following table reconciles the numerator and denominator used to calculate diluted net income (loss) per common share:

	Years Ended December 31,
	2014		2013			2012
Numerator:
Net income (loss)	$	276,452	$	(42,613	)	$	(41,257	)
Interest expense on convertible notes, net of tax		14,030		—			—
Numerator for diluted net income (loss) per common share calculation	$	290,482	$	(42,613	)	$	(41,257	)
Denominator:
Weighted-average common shares, basic		76,929		75,165			73,480
Dilutive effect of common stock equivalents		8,071		—			—
Weighted-average common shares, diluted		85,000		75,165			73,480
Net income (loss) per common share:
Basic net income (loss) per common share	$	3.59	$	(0.57	)	$	(0.56	)
Diluted net income (loss) per common share	$	3.42	$	(0.57	)	$	(0.56	)