Annual report pursuant to Section 13 and 15(d)

Restructuring Charges - Components of Restructuring Liabilities (Details)

v3.6.0.2
Restructuring Charges - Components of Restructuring Liabilities (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Restructuring Cost And Reserve [Line Items]              
Balance at period start     $ 459     $ 459  
Restructuring charges $ (4,551) $ 21 (36) $ (1,138) $ (2,561) 4,566 $ 3,699
Non-cash charges           (817)  
Cash payments           (614) (3,240)
Balance at period end 3,594     459   3,594 459
Employee Severance and Other Benefits [Member]              
Restructuring Cost And Reserve [Line Items]              
Balance at period start     343     343  
Restructuring charges           3,720 2,933
Cash payments           (469) (2,590)
Balance at period end $ 3,594     343   3,594 343
Contract Termination Costs [Member]              
Restructuring Cost And Reserve [Line Items]              
Balance at period start     $ 116     116  
Restructuring charges           29 766
Cash payments           (145) (650)
Balance at period end       $ 116     $ 116
Stock-based Compensation [Member]              
Restructuring Cost And Reserve [Line Items]              
Restructuring charges           619  
Non-cash charges           (619)  
Asset Impairment [Member]              
Restructuring Cost And Reserve [Line Items]              
Restructuring charges           198  
Non-cash charges           $ (198)