Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings per Share

The following table sets forth the computation of basic and diluted earnings per share for the three and six month periods ended June 30, 2013 and 2012.

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Net income	$	21,505	$	13,010	$	41,549	$	25,224
Less preferred stock dividends	—		853		—		1,706
Net income available to common shareholders, basic and diluted	$	21,505	$	12,157	$	41,549	$	23,518
Weighted average common shares outstanding for basic earnings per share computation	43,480,502		42,966,926		43,335,682		42,920,347
Dilutive effects of stock-based compensation	427,785		93,278		376,978		96,111
Weighted average common shares outstanding for diluted earnings per common share computation	43,908,287		43,060,204		43,712,660		43,016,458
Basic earnings per common share	$	0.49	$	0.28	$	0.96	$	0.55
Diluted earnings per common share	$	0.49	$	0.28	$	0.95	$	0.55