Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Net Income Per Share [Abstract]

Schedule Of Weighted Average Shares Outstanding Basic And Diluted

	For the Three Months Ended March 31,
	2013		2012
Weighted average shares outstanding:
Common shares		23,692,780		25,635,487
Vested restricted stock units		637,247		522,185
Basic number of weighted average shares outstanding		24,330,027		26,157,672
Dilutive effect of stock options		39,266		57,555
Dilutive effect of restricted stock and restricted stock units		56,834		68,574
Dilutive number of weighted average shares outstanding		24,426,127		26,283,801