Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Common Share [Abstract]

Net Income attributed to Common Stock and Participating Restricted Common Stock

	Quarter Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Net Income attributed to:
Common stock	$	11,870	$	8,971	$	23,651	$	20,357
Participating restricted common stock		—		44		25		152
Total	$	11,870	$	9,015	$	23,676	$	20,509

Calculation of the Denominator of the Basic and Diluted Earnings (Loss) per Share (EPS) computations

	Quarter Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Weighted-average shares outstanding – Basic:
Common stock		32,194		32,866		32,293		32,738
Participating restricted common stock		1		161		34		244
Total		32,195		33,027		32,327		32,982
Weighted-average shares outstanding – Diluted:
Common stock		32,309		33,072		32,435		32,962
Participating restricted common stock		1		161		34		244
Total		32,310		33,233		32,469		33,206

Reconciliation of the basic and diluted EPS denominators

	Quarter Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Basic weighted-average common shares		32,194		32,866		32,293		32,738
Dilutive effect of common stock options		9		22		12		22
Dilutive effect of non-participating restricted common stock		106		184		130		202
Dilutive effect of 2010 Convertible Notes		—		—		—		—
Diluted weighted-average common shares		32,309		33,072		32,435		32,962