Net Income per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Summary of the net income allocated to common shares and the basic and diluted shares used in the net income per share computations

The following table summarizes the net income allocated to common shares and the basic and diluted shares used in the net income per share computations:

	Three Months Ended   March 31,
	2014			2013
	(in thousands)
Net income	$	9,564		$	13,173
Less distributed and undistributed earnings allocated to participating securities	(282		)	(383		)
Net income allocated to common shares	$	9,282		$	12,790
Weighted average common shares outstanding	24,823			24,897
Incremental shares from assumed conversions of common stock options	7			30
Adjusted weighted average common shares outstanding	24,830			24,927
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect	—			16