Share-Based Compensation and Employee Ownership Plans - Stock Options (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended		6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 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			(77,209)
Balance outstanding, end of period, shares			789,219
Options exercisable, shares			639,216
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			$ 12.65
Options exercisable, in dollars per share			$ 14.69
Weighted average remaining term, options outstanding	2 years 1 month 17 days	2 years 6 months 11 days
Weighted average remaining term, options exercisable	1 year 5 months 5 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	$ 2.66	$ 2.59

[1] Based on the Company's closing stock price of $2.66 on June 30, 2012 and $2.59 on December 31, 2011.