Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Jun. 30, 2012	Mar. 31, 2012	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 4,180		$ 4,180	$ 4,663	$ 4,663
Charges to Expense	162		507	239	908
Payments made / Other	(253)		(507)	(722)
Ending Balance	4,089		4,180	4,180	4,089
Cumulative charges incurred					5,571
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	4,180		4,180	4,180	4,180
Charges to Expense	5		0	0
Payments made / Other	(96)		0	0
Ending Balance	4,089	[1]	4,180	4,180	4,089	[1]
Cumulative charges incurred					4,185
Professional Fees [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0		0	483	483
Charges to Expense	81		460	239
Payments made / Other	(81)		(460)	(722)
Ending Balance	0		0	0	0
Cumulative charges incurred					1,263
Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0		0	0	0
Charges to Expense	76		47	0
Payments made / Other	(76)		(47)	0
Ending Balance	0		0	0	0
Cumulative charges incurred					$ 123

[1] The $4,089 of accrued employee termination costs are expected to be paid through 2013.