Earnings Per Share Information

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Share Information

Earnings Per Share Information

Earnings per share is computed as follows:

	Year Ended December 31,
	2012		2011		2010
Income available to common shareholders:
Net income	$	24,595	$	14,065	$	14,053
Weighted-average shares:
Basic:
Outstanding	13,867,771		14,006,093		14,511,100
Partially-paid share subscriptions	234,595		—		—
Basic weighted-average shares	14,102,366		14,006,093		14,511,100
Diluted:
Basic from above	14,102,366		14,006,093		14,511,100
Incremental shares from assumed:
Exercise of stock subscription purchase rights	5,750		—		—
Exercise of stock options and awards	500,741		530,779		520,094
Diluted weighted-average shares	14,608,857		14,536,872		15,031,194
Share data:
Earnings per share--basic	$	1.74	$	1.00	$	.97
Earnings per share--diluted	$	1.68	$	.97	$	.93