Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings per Share [Abstract]

Basic and Diluted Weighted Average Shares Outstanding and Earnings per Share

	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

Number of Antidilutive Shares Excluded from the Computation of Dilutive Weighted Average Shares

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