Restructuring and Other Related Costs Amount of restructuring and other related costs recognized during the year (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended					3 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 Employee Severance and Related Costs [Member]	Dec. 31, 2013 Employee Severance and Related Costs [Member]	Dec. 31, 2012 Employee Severance and Related Costs [Member]	Dec. 31, 2011 Real Estate Exit and Related Costs [Member]	Dec. 31, 2013 Real Estate Exit and Related Costs [Member]	Dec. 31, 2012 Real Estate Exit and Related Costs [Member]	Dec. 31, 2011 Asset Write-offs [Member]	Dec. 31, 2013 Asset Write-offs [Member]	Dec. 31, 2012 Asset Write-offs [Member]	Dec. 31, 2013 Accrued Restructuring Liability [Member]	Dec. 31, 2012 Accrued Restructuring Liability [Member]	Dec. 31, 2011 Accrued Restructuring Liability [Member]	Dec. 31, 2013 Minimum [Member] Real Estate Exit and Related Costs [Member]	Dec. 31, 2013 Maximum [Member] Real Estate Exit and Related Costs [Member]	Dec. 31, 2013 Other Current Liabilities [Member] Accrued Restructuring Liability [Member]	Dec. 31, 2013 Other Noncurrent Liabilities [Member] Accrued Restructuring Liability [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated		70
Restructuring and other related costs	$ 8,100	$ 5,716	$ 0	$ 8,100	$ 5,739	$ 4,568		$ 831	$ 615		$ 1,530	$ 533					$ 1,000	$ 3,000
Restructuring Reserve					$ 5,372	$ 4,568	$ 427	$ 831	$ 769	$ 507	$ 0	$ 0	$ 0	$ 5,337	$ 934	$ 6,203			$ 4,700	$ 600