Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Reconciliation of Shares Used in Calculating Earnings Per Basic and Diluted Shares

A reconciliation of shares used in calculating earnings per basic and diluted shares follows (in thousands):

	Three Months Ended March 31,
	2015	2014
Weighted average common shares outstanding—basic	26,072	25,749
Dilutive effect of stock-based awards	369	906
Dilutive effect of convertible senior notes	874	1,461
Dilutive effect of warrants	—	80
Weighted average common shares outstanding—diluted	27,315	28,196