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Restructuring - Summary of Restructuring Liability (Detail)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
USD ($)
Restructuring Reserve [Roll Forward]  
Balance at December 31, 2016 $ 1,043
Costs Incurred 809
Payments (520)
Balance at March 31, 2017 1,332
Cumulative Costs Incurred to Date 5,805
2015 Initiatives | Employee Severance Costs  
Restructuring Reserve [Roll Forward]  
Balance at December 31, 2016 455
Costs Incurred 0
Payments (142)
Balance at March 31, 2017 313
Cumulative Costs Incurred to Date 4,130
2015 Initiatives | Facility Exit Related Costs  
Restructuring Reserve [Roll Forward]  
Balance at December 31, 2016 588
Costs Incurred (35)
Payments 0
Balance at March 31, 2017 553
Cumulative Costs Incurred to Date 831
2017 Initiative | Employee Severance Costs  
Restructuring Reserve [Roll Forward]  
Balance at December 31, 2016 0
Costs Incurred 844
Payments (378)
Balance at March 31, 2017 466
Cumulative Costs Incurred to Date $ 844