Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Weighted average number of common shares outstanding during the period

Net income per common share, as shown on the Consolidated Statements of Income (Loss), is determined on the basis of the weighted average number of common shares outstanding during the periods as follows:

	2012	2011	2010
Weighted average common shares outstanding:
Basic	33,597,020	34,584,558	35,304,817
Dilutive effect of stock options and restricted stock	512,212	158,985	—
Weighted average common shares outstanding diluted	34,109,232	34,743,543	35,304,817