Earnings per Share

12 Months Ended

Dec. 31, 2013

Earnings per Share [Abstract]

Earnings per Share

(4) Earnings Per Share

The following table sets forth the calculation of basic and diluted weighted average shares outstanding and earnings per share for the indicated periods.

	Year Ended December 31,
	2013		2012		2011
	(in thousands, except per share data)
Income (numerator):
Net income	$	85,274	$	58,810	$	26,611
Net income attributable to participating securities		(943)		(455)		(77)
Net income attributable to common shares	$	84,331	$	58,355	$	26,534
Weighted average shares (denominator):
Weighted average shares—basic		38,730		38,885		39,946
Dilutive effect of stock options		506		149		104
Weighted average shares—diluted		39,236		39,034		40,050
Basic earnings per share	$	2.18	$	1.50	$	0.66
Diluted earnings per share	$	2.15	$	1.50	$	0.66

The following table indicates the number of shares underlying outstanding stock-based awards excluded from the computation of dilutive weighted average shares because their effect was antidilutive for the periods indicated.

	Year Ended December 31,
	2013		2012		2011
	(in thousands)
Weighted average shares		273		687		442