Restructuring - Components of Resctructuing (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Accruals	$ 675		$ 675
Non-cash items	201		201	0
Total	876	0	876	0
Employee-related charges [Member]
Restructuring Cost and Reserve [Line Items]
Accruals	663		663
Non-cash items	201		201
Total	864		864
Other restructuring charges [Member]
Restructuring Cost and Reserve [Line Items]
Accruals	12		12
Non-cash items	0		0
Total	$ 12		$ 12