Stock-Based Compensation (Schedule of Stock Options Outstanding and Exercisable) (Details) (Stock Options and Stock Appreciation Rights (SARs), USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Exercise Prices	$ 6.62	$ 6.67
Grants Outstanding	262
Grants Exercisable	249
$10.40 to $11.59
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Maximum	$ 10.40
Range of Exercise Prices, Maximum	$ 11.59
Weighted Average Exercise Prices	$ 11.10
Grants Outstanding	52
Intrinsic Value-Grants Outstanding	$ 144
Grants Exercisable	52
Intrinsic Value- Grants Exercisable	144
$2.37 to $6.21
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Maximum	$ 2.37
Range of Exercise Prices, Maximum	$ 6.21
Weighted Average Exercise Prices	$ 5.50
Grants Outstanding	210
Intrinsic Value-Grants Outstanding	1,751
Grants Exercisable	197
Intrinsic Value- Grants Exercisable	$ 1,644