Share-Based Compensation Plans Stock Options (Details) (Stock options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares outstanding beginning balance	4,873
Weighted average exercise price per share outstanding beginning balance	$ 6.52
Number of shares granted	100
Weighted average exercise price per share granted	$ 5.18
Number of shares exercised	(82)
Weighted average exercise price per share exercised	$ 5.33
Number of shares forfeited or expired	(214)
Weighted average exercise price per share forfeited or expired	$ 14.93
Number of shares outstanding ending balance	4,677
Weighted average exercise price per share outstanding ending balance	$ 6.13
Weighted average exercise price per share average contractual term (years)	5 years 9 months 26 days
Aggregate intrinsic value outstanding ending balance (in dollars)	$ 6,952
Number of shares fully vested and expected to vest	4,643
Weighted average exercise price per share fully vested and expected to vest	$ 6.14
Weighted average remaining contractual term fully vested and expected to vest (years)	5 years 9 months 15 days
Aggregate intrinsic value fully vested and expected to vest (in dollars)	6,870
Number of shares exercisable	2,398
Weighted average exercise price per share exercisable	$ 7.72
Weighted average remaining contractual term exercisable (years)	2 years 9 months 4 days
Aggregate intrinsic value exercisable (in dollars)	$ 1,480