Annual report pursuant to Section 13 and 15(d)

Restructuring (Details)

v3.8.0.1
Restructuring (Details)
$ in Thousands
 3 Months Ended 12 Months Ended 18 Months Ended
Dec. 31, 2016
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
ft²
Sep. 30, 2015
USD ($)
Jun. 30, 2015
USD ($)
Mar. 31, 2015
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
ft²
Dec. 31, 2014
USD ($)
Dec. 31, 2015
USD ($)
ft²
Sep. 30, 2014
USD ($)
Restructuring Cost and Reserve [Line Items]                          
Expense $ 0 $ 0 $ 0 $ 0 $ 43 $ 66 $ 0 $ 302 $ 0 $ 411 $ 4,223    
Restructuring Reserve [Roll Forward]                          
Restructuring reserves, beginning balance       0       1,924 0 1,924 0    
Expense $ 0 $ 0 $ 0 0 43 $ 66 $ 0 302 0 411 4,223    
Payments                   (2,335) (2,299)    
Restructuring reserves, ending balance         0         0 1,924 $ 0  
Termination Costs                          
Restructuring Cost and Reserve [Line Items]                          
Expense                   238 2,489 2,700  
Restructuring Reserve [Roll Forward]                          
Restructuring reserves, beginning balance       0       809 0 809 0    
Expense                   238 2,489 2,700  
Payments                   (1,047) (1,680)    
Restructuring reserves, ending balance         $ 0         0 809 0  
Leases and Other Contractual Obligations                          
Restructuring Cost and Reserve [Line Items]                          
Expense                   $ 107 322 $ 400  
Area of closed facility (in sq ft) | ft²         11,000         11,000   11,000  
Percentage of company square footage being closed         6.00%         6.00%   6.00%  
Restructuring Reserve [Roll Forward]                          
Restructuring reserves, beginning balance       0       39 0 $ 39 0    
Expense                   107 322 $ 400  
Payments                   (146) (283)    
Restructuring reserves, ending balance         $ 0         0 39 0  
Other                          
Restructuring Cost and Reserve [Line Items]                          
Expense                   66 1,412 1,500  
Restructuring Reserve [Roll Forward]                          
Restructuring reserves, beginning balance       $ 0       $ 1,076 $ 0 1,076 0    
Expense                   66 1,412 1,500  
Payments                   (1,142) (336)    
Restructuring reserves, ending balance         $ 0         $ 0 $ 1,076 $ 0  
Minimum                          
Restructuring Cost and Reserve [Line Items]                          
Expected restructuring charge                         $ 4,600