Accrued Restructuring Restructuring Reserve Rollforward (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Restructuring Reserve [Roll Forward]
Balance accrued as of December 31, 2014	$ 753
Additions	4,828
Reversals	(546)
Expenditures	(4,371)
Balance accrued as of December 31, 2015	664
Other Noncurrent Liabilities [Member]
Restructuring Reserve [Roll Forward]
Balance accrued as of December 31, 2014	400
Balance accrued as of December 31, 2015	100
Severance, Payroll Taxes and Other Employee Benefits [Member]
Restructuring Reserve [Roll Forward]
Balance accrued as of December 31, 2014	166
Additions	4,436
Reversals	(546)
Expenditures	(3,974)
Balance accrued as of December 31, 2015	82
Lease Abandonment Charges [Member]
Restructuring Reserve [Roll Forward]
Balance accrued as of December 31, 2014	587
Additions	392
Reversals	0
Expenditures	(397)
Balance accrued as of December 31, 2015	$ 582