Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Net Income Per Share [Abstract]

Schedule Of Weighted Average Shares Outstanding Basic And Diluted

	For the Years Ended December 31,
	2012		2011		2010
Weighted average shares outstanding:
Common shares		24,850,830		25,890,521		29,140,879
Vested restricted stock units		558,825		411,768		252,430
Basic number of weighted average shares outstanding		25,409,655		26,302,289		29,393,309
Dilutive effect of stock options		48,005		102,651		335,389
Dilutive effect of restricted stock and restricted stock units		141,296		195,915		256,121
Dilutive number of weighted average shares outstanding		25,598,956		26,600,855		29,984,819