Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Schedule of earnings per share

The following table sets forth the computation of basic and diluted earnings per share (shares in thousands):

	Year Ended December 31,
	2014		2013		2012
Numerator:
Net income available to common stockholders	$	540	$	387	$	75
Denominator:
Denominator for basic earnings per share—weighted-average common shares	97,489		93,436		82,960
Effect of dilutive securities:
Employee stock options and warrants	394		504		720
Convertible subordinated notes—4 percent	6,386		11,769		10,632
Restricted stock units	687		582		536
Denominator for diluted earnings per share—adjusted weighted-average common shares	104,956		106,291		94,848
Basic earnings per share	$	5.54	$	4.14	$	0.91
Diluted earnings per share	$	5.15	$	3.64	$	0.79