Stock-Based Compensation Plans Oustanding and Exercisable Awards (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Shares	6,128
Exercisable Shares	5,064
$1.39 to $2.91 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Shares	1,321
Outstanding Weighted Average Exercise Price Per Share	$ 2.06
Exercisable Shares	1,321
Exercisable Weighted Average Exercise Price Per Share	$ 2.06
$3.28 to $4.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Shares	2,915
Outstanding Weighted Average Exercise Price Per Share	$ 3.66
Exercisable Shares	2,234
Exercisable Weighted Average Exercise Price Per Share	$ 3.74
$4.06 to $5.53 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Shares	1,890
Outstanding Weighted Average Exercise Price Per Share	$ 4.78
Exercisable Shares	1,507
Exercisable Weighted Average Exercise Price Per Share	$ 4.79
$5.65 to $6.75 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Shares	2
Outstanding Weighted Average Exercise Price Per Share	$ 5.66
Exercisable Shares	2
Exercisable Weighted Average Exercise Price Per Share	$ 5.66
Stock Options and Stock Appreciation Rights [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 3.66	$ 4.04	$ 3.70	$ 5.55
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 3.61	$ 4.13	$ 3.73