Net Income per Share (Tables)

3 Months Ended

Mar. 31, 2015

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,
	2015			2014
	(in thousands)
Net income	$	13,787		$	9,564
Less distributed and undistributed earnings allocated to participating securities	(355		)	(282		)
Net income allocated to common shares	$	13,432		$	9,282
Weighted average common shares outstanding	24,716			24,823
Incremental shares from assumed conversions of common stock options	8			7
Adjusted weighted average common shares outstanding	24,724			24,830
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect	—			—