Segment Information - Segment Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Net sales	$ 619,793	$ 584,954	$ 405,443
Depreciation and amortization	52,406	50,721	32,973
Income from operations	33,114	34,779	58
Interest expense	(52,085)	(62,870)	(29,582)
Other	(39,902)	(2,775)	(19,694)
Loss from continuing operations before benefit for income taxes and share of net income from joint venture	(58,873)	(30,866)	(49,218)
Share of net income from joint venture	5,211	5,938	5,001
Expenditures for long-lived assets	43,722	43,820	38,553
Total assets	1,475,003	1,358,274	1,388,337
Autocam Precision Components Group [Member]
Segment Reporting Information [Line Items]
Total assets	428,321	412,692	416,504
Autocam Precision Components Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	336,852	326,138	328,260
Depreciation and amortization	24,491	22,189	21,472
Income from operations	34,405	29,490	30,810
Share of net income from joint venture	5,211	5,938	5,001
Expenditures for long-lived assets	24,056	23,077	21,341
Precision Engineered Products Group [Member]
Segment Reporting Information [Line Items]
Total assets	738,766	720,362	747,804
Precision Engineered Products Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	282,941	258,816	77,183
Depreciation and amortization	26,745	28,105	11,282
Income from operations	36,711	33,900	(3,806)
Expenditures for long-lived assets	5,443	5,352	728
Corporate and Consolidations [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	1,170	427	219
Income from operations	(38,002)	(28,611)	(26,946)
Expenditures for long-lived assets	6,907	3,465	1,373
Total assets	$ 307,916	$ 225,220	$ 224,029