Segment Information - Additional Information (Detail) $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended								12 Months Ended
	Oct. 20, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) Segment	Dec. 31, 2014 USD ($)	Dec. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment												3
Non-recurring costs related to the merger with PEP, Autocam and the other four acquisitions												$ 8,700	$ 9,400
Business combinations net income (loss) during period from acquired business				$ (25,015)	$ 4,630	$ 6,953	$ 6,001	$ 1,619	$ (3,840)	$ 5,200	$ 5,238
Autocam [Member]
Segment Reporting Information [Line Items]
Non-recurring costs related to the merger with PEP, Autocam and the other four acquisitions													3,800
Business combinations revenue during period from acquired business		$ 80,800											80,800
Business combinations net income (loss) during period from acquired business		$ 3,700											3,700
Increase in cost of sales for inventory step-up									$ 1,200				$ 1,200
PEP [Member]
Segment Reporting Information [Line Items]
Non-recurring costs related to the merger with PEP, Autocam and the other four acquisitions												12,300
Business combinations revenue during period from acquired business	$ 40,700											40,700
Business combinations net income (loss) during period from acquired business	$ (2,600)											(2,600)
Increase in cost of sales for inventory step-up				$ 4,300								4,300
Amortization of backlog intangibles			$ 5,200									19,700
Corporate and Consolidations [Member] | Autocam [Member]
Segment Reporting Information [Line Items]
Non-recurring costs related to the merger with PEP, Autocam and the other four acquisitions												10,900		$ 9,800
Corporate and Consolidations [Member] | Other Acquisitions [Member]
Segment Reporting Information [Line Items]
Non-recurring costs related to the merger with PEP, Autocam and the other four acquisitions												10,900		9,800
Corporate and Consolidations [Member] | PEP [Member]
Segment Reporting Information [Line Items]
Non-recurring costs related to the merger with PEP, Autocam and the other four acquisitions												$ 10,900		$ 9,800