Earning Per Share (Tables)

9 Months Ended

Sep. 30, 2011

Earnings Per Share [Abstract]

Schedule of weighted-average shares of common stock outstanding

	Three Months Ended September 30,					Nine Months Ended September 30,
	2011		2010			2011		2010
Numerator:
Net income (loss)	$	2,067	$	(16,775	)	$	6,537	$	4,862
Denominator:
Basic weighted-average shares outstanding		30,025,607		29,933,615			30,013,464		29,901,657
Effect of diluted securities		225,804		—			264,992		241,374
Diluted weighted-average shares outstanding		30,251,411		29,933,615			30,278,456		30,143,031
Earnings (loss) per share:
Basic	$	0.07	$	(0.56	)	$	0.22	$	0.16
Diluted	$	0.07	$	(0.56	)	$	0.22	$	0.16