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Restructuring - Summary of Restructuring Liability (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
Restructuring Reserve [Roll Forward]  
Beginning Balance $ 1,983
Costs Incurred 3,821
Payments (2,498)
Non-cash (1,572)
Translation Adjustment (4)
Ending Balance 1,730
Cumulative Costs Incurred to Date 15,309
Total Expected Restructuring Costs 15,433
2013 Initiatives | Employment Contract Costs  
Restructuring Reserve [Roll Forward]  
Beginning Balance 0
Costs Incurred 0
Payments 0
Non-cash 0
Translation Adjustment 0
Ending Balance 0
Cumulative Costs Incurred to Date 3,986
Total Expected Restructuring Costs 3,986
2013 Initiatives | Facility Exit Related Costs  
Restructuring Reserve [Roll Forward]  
Beginning Balance 232
Costs Incurred 0
Payments (160)
Non-cash 0
Translation Adjustment 0
Ending Balance 72
Cumulative Costs Incurred to Date 2,625
Total Expected Restructuring Costs 2,630
2014 Initiatives | Employment Contract Costs  
Restructuring Reserve [Roll Forward]  
Beginning Balance 1,751
Costs Incurred (151)
Payments (1,600)
Non-cash 0
Translation Adjustment 0
Ending Balance 0
Cumulative Costs Incurred to Date 3,428
Total Expected Restructuring Costs 3,428
2014 Initiatives | Share-based Compensation Costs  
Restructuring Reserve [Roll Forward]  
Beginning Balance 0
Costs Incurred 0
Payments 0
Non-cash 0
Translation Adjustment 0
Ending Balance 0
Cumulative Costs Incurred to Date 1,298
Total Expected Restructuring Costs 1,298
2015 Initiatives | Employment Contract Costs  
Restructuring Reserve [Roll Forward]  
Beginning Balance 0
Costs Incurred 3,591
Payments (685)
Non-cash (1,572)
Translation Adjustment (4)
Ending Balance 1,330
Cumulative Costs Incurred to Date 3,591
Total Expected Restructuring Costs 3,591
2015 Initiatives | Facility Exit Related Costs  
Restructuring Reserve [Roll Forward]  
Beginning Balance 0
Costs Incurred 381
Payments (53)
Non-cash 0
Translation Adjustment 0
Ending Balance 328
Cumulative Costs Incurred to Date 381
Total Expected Restructuring Costs $ 500