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Restructuring and Integration - Summary of Restructuring and Integration Charges and Reserve Activity (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]      
Severance and other costs $ 17 $ 1,687 $ 1,522
Site closure and other associated costs 369 3,971 3,727
Total 386 5,658 5,249
Reserve beginning balance 2,625 2,732  
Charges 386 5,658 5,249
Non-cash Adjustments (164) (2,420) (2,290)
Cash Reductions (1,748) (3,345) (227)
Reserve ending balance 1,099 2,625 2,732
Severance and Other Employee Costs [Member]      
Restructuring Cost and Reserve [Line Items]      
Reserve beginning balance 1,000 887  
Charges 17 1,687 1,522
Non-cash Adjustments (164) (278) (408)
Cash Reductions (853) (1,296) (227)
Reserve ending balance   1,000 887
Site Closure Costs [Member]      
Restructuring Cost and Reserve [Line Items]      
Reserve beginning balance 1,625 1,845  
Charges 369 3,971 3,727
Non-cash Adjustments   (2,142) (1,882)
Cash Reductions (895) (2,049)  
Reserve ending balance 1,099 1,625 1,845
Autocam Precision Components [Member]      
Restructuring Cost and Reserve [Line Items]      
Severance and other costs 17 851 672
Site closure and other associated costs 369 3,488 1,962
Total $ 386 4,339 2,634
Precision Engineered Products Group [Member]      
Restructuring Cost and Reserve [Line Items]      
Severance and other costs   836 850
Site closure and other associated costs   483  
Total   $ 1,319 850
Corporate and Consolidations [Member]      
Restructuring Cost and Reserve [Line Items]      
Site closure and other associated costs     1,765
Total     $ 1,765