Share-Based Compensation and Employee Ownership Plans - Stock Options (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Equity Plans [Member]
Shares Subject to Option
Balance outstanding, beginning of period, shares			866,428
Options granted, shares			0
Options acquired, shares			0
Options expired, shares			(92,665)
Balance outstanding, end of period, shares			773,763
Options exercisable, shares			623,760
Weighted Average Exercise Price/Share
Balance outstanding, beginning of period, in dollars per share			$ 12.95
Options granted, in dollars per share			$ 0.00
Options acquired, in dollars per share			$ 0.00
Options expired, in dollars per share			$ 16.00
Balance outstanding, end of period, in dollars per share			$ 12.58
Options exercisable, in dollars per share			$ 14.66
Weighted average remaining term, options outstanding	1 year 10 months 24 days	2 years 6 months 11 days
Weighted average remaining term, options exercisable	1 year 2 months 9 days
Aggregate Intrinsic Value
Balance outstanding, beginning of period			$ 0	[1]
Balance outstanding, end of period			0	[1]
Options exercisable			$ 0	[1]
Closing stock price, in dollars per share	$ 2.71	$ 2.59

[1] Based on the Company's closing stock price of $2.71 on September 30, 2012 and $2.59 on December 31, 2011.