Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Common Share

The following table sets forth the computation of basic and diluted earnings per common share:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
	(In thousands, except per share amounts)
Net income	$	19,343	$	12,629	$	34,669	$	26,122
Common stock—voting		36,868		36,128		36,821		35,702
Common stock—non-voting		—		—		—		829
Basic weighted average shares outstanding		36,868		36,128		36,821		36,531
Basic earnings per share	$	0.52	$	0.35	$	0.94	$	0.72
Weighted average shares outstanding		36,868		36,128		36,821		36,531
Dilutive effect of stock options and restricted stock		951		1,312		925		1,536
Diluted weighted average shares outstanding		37,819		37,440		37,746		38,067
Diluted earnings per share	$	0.51	$	0.34	$	0.92	$	0.69