Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2012		Mar. 31, 2012	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 4,180		$ 4,663	$ 4,663
Charges to Expense	507		239	746
Payment made / Other	(507)		(722)
Ending Balance	4,180		4,180	4,180
Cumulative charges incurred				5,409
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	4,180		4,180	4,180
Charges to Expense	0		0
Payment made / Other	0		0
Ending Balance	4,180	[1]	4,180	4,180	[1]
Cumulative charges incurred				4,180
Professional Fees [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0		483	483
Charges to Expense	460		239
Payment made / Other	(460)		(722)
Ending Balance	0		0	0
Cumulative charges incurred				1,182
Accelerated Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0		0	0
Charges to Expense	47		0
Payment made / Other	(47)		0
Ending Balance	0		0	0
Cumulative charges incurred				$ 47

[1] The $4,180 of accrued employee termination costs are expected to be paid through 2013.