Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

				Weighted
			Weighted	Average	Aggregate
			Average	Remaining	Intrinsic
			Exercise	Contractual	Value
		Shares	Price	Term	(in thousands)
Outstanding at January 1, 2012		1,087	$ 7.27
	Exercised	(284)	$ 6.78
	Forfeited	(14)	$ 5.86
	Expired	(33)	$ 5.83
Outstanding at September 30, 2012		756	$ 7.54	3.80 years	$ 1,795
Exercisable at September 30, 2012		712	$ 7.59	3.63 years	$ 1,660

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

				Weighted
				Average
				Grant Date
		Shares		Fair Value
Nonvested at January 1, 2012		1,556	$	6.89
	Granted	520	$	9.58
	Vested	(991)	$	4.90
	Forfeited	(9)	$	10.88
Nonvested at September 30, 2012		1,076	$	10.01

Schedule Of Share-based Compensation [Table Text Block]

		2012	2011
Employee share-based compensation expense	$	3,989	4,193
Adjustment to fair value of liability classified awards		1	(969)
Total share-based compensation expense	$	3,990	3,224