Business Combinations (Tables)

3 Months Ended

Mar. 31, 2013

Business Combinations [Abstract]

Business Acquisition, Pro Forma Information

	Three Months Ending March 31, 2013				Three Months Ending March 31, 2012
	As Reported		Pro Forma		As Reported		Pro Forma
	(unaudited)				(unaudited)
	(In thousands, except per share data)
Revenue	$	52,566	$	52,566	$	43,827	$	50,892
Net Income	$	17,344	$	17,344	$	15,685	$	14,743
Basic EPS	$	0.47	$	0.47	$	0.43	$	0.40
Diluted EPS	$	0.45	$	0.45	$	0.40	$	0.37