Restructuring - Restructuring Reserve (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Reserve [Roll Forward]
Begining balance	$ 318	$ 605	$ 763
Provision	9,239	2,730	3,471
Reversal			285
Less: Payments	(6,043)	(3,017)	(3,344)
Ending balance	3,514	318	605
Severance & Personnel [Member]
Restructuring Reserve [Roll Forward]
Begining balance	318	0	0
Provision	2,991	1,102	1,102
Reversal			0
Less: Payments	(1,366)	(784)	(1,102)
Ending balance	1,943	318	0
Other Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Begining balance	0	605	763
Provision	6,248	1,628	2,369
Reversal			285
Less: Payments	(4,677)	(2,233)	(2,242)
Ending balance	$ 1,571	$ 0	$ 605