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Investment in Joint Venture - Additional Information (Detail) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	[1]	Sep. 30, 2017	Sep. 30, 2016	[1]
Schedule of Equity Method Investments [Line Items]
Net sales	$ 148,156,000	$ 146,714,000		$ 463,658,000	$ 443,310,000
Autocam [Member] | Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Net sales				200,000
Autocam [Member] | Joint Venture [Member] | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	100,000
Amount due from joint venture	$ 100,000			$ 100,000
Wuxi Weifu Autocam Precision Machinery Company, Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Investment in joint venture	49.00%			49.00%
[1] Includes the effects of discontinued operations (Note 2) and prior periods' revisions (Note 1 and Note 15)

X

- Definition

For an unclassified balance sheet, amounts due from an entity in which the reporting entity shares joint control with another party or group.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

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