Goodwill, Net - Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 450,311
Currency impacts	1,971
Ending Balance	452,282
Precision Bearing Components Group [Member]
Goodwill [Line Items]
Beginning Balance	8,909
Currency impacts	174
Ending Balance	9,083
Autocam Precision Components Group [Member]
Goodwill [Line Items]
Beginning Balance	70,717
Currency impacts	474
Ending Balance	71,191
Precision Engineered Products Group [Member]
Goodwill [Line Items]
Beginning Balance	370,685
Currency impacts	1,323
Ending Balance	$ 372,008