Restructuring (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 4,206		$ 0
Restructuring Reserve, Beginning Balance	1,443		1,443
Restructuring Reserve, Period Expense	453
Restructuring Reserve, Settled with Cash	(1,334)
Restructuring Reserve, Settled without Cash	0
Restructuring Reserve, Ending Balance	562
Professional Fees [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		5,200
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		3,254	0
Restructuring Reserve, Beginning Balance	1,443		1,443
Restructuring Reserve, Period Expense	0
Restructuring Reserve, Settled with Cash	(1,128)
Restructuring Reserve, Settled without Cash	0
Restructuring Reserve, Ending Balance	315	1,443
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	415		0
Restructuring Reserve, Beginning Balance	0		0
Restructuring Reserve, Period Expense	415
Restructuring Reserve, Settled with Cash	(168)
Restructuring Reserve, Settled without Cash	0
Restructuring Reserve, Ending Balance	247
Impairment of long lived assets [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	337		0
Restructuring Reserve, Beginning Balance	0		0
Restructuring Reserve, Period Expense	0
Restructuring Reserve, Settled with Cash	0
Restructuring Reserve, Settled without Cash	0
Restructuring Reserve, Ending Balance	0
Other restructuring costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	200		0
Restructuring Reserve, Beginning Balance	0		0
Restructuring Reserve, Period Expense	38
Restructuring Reserve, Settled with Cash	(38)
Restructuring Reserve, Settled without Cash	0
Restructuring Reserve, Ending Balance	$ 0