Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2011

Earnings Per Share

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended December 31,
	2011		2010		2009
Income from continuing operations available to common stockholders	$	72,760	$	61,840	$	57,061
Discontinued operations		8,372		7,581		7,168
Net income available to common stockholders	$	81,132	$	69,421	$	64,229
BASIC:
Weighted average common shares outstanding	27,719,096		27,664,482		27,586,338
Income from continuing operations per common share	$	2.63	$	2.24	$	2.07
Discontinued operations per common share		.30		.27		.26
Net income per common share	$	2.93	$	2.51	$	2.33
DILUTED:
Weighted average common shares outstanding	27,719,096		27,664,482		27,586,338
Dilutive effect of:
Stock options		72,035		65,548		28,825
Restricted shares		1,461		2,929		3,137
Average dilutive common shares outstanding	27,792,592		27,732,959		27,618,300
Income from continuing operations per common share	$	2.62	$	2.23	$	2.06
Discontinued operations per common share		.30		.27		.26
Net income per common share	$	2.92	$	2.50	$	2.32
Incremental shares excluded since anti-dilutive:
Stock options with an exercise price in excess of the market price for our common shares		16,758		1,297		9,906