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Segment Information - Segment Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |
Revenues from external customers | $ 148,156 | $ 146,714 | [1] | $ 463,658 | $ 443,310 | [1]
Income (loss) from operations | 6,296 | 12,985 | [1] | 32,294 | 29,457 | [1]
Autocam Precision Components Group [Member] | Operating Segments [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Revenues from external customers | 81,664 | 80,492 |  | 254,768 | 247,473 |
Income (loss) from operations | 6,799 | 8,464 |  | 28,088 | 22,761 |
Precision Engineered Products Group [Member] | Operating Segments [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Revenues from external customers | 66,492 | 66,222 |  | 208,890 | 195,837 |
Income (loss) from operations | 7,922 | 9,913 |  | 29,436 | 26,116 |
Corporate and Consolidations [Member] |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Income (loss) from operations | $ (8,425) | $ (5,392) |  | $ (25,230) | $ (19,420) |
[1] | Includes the effects of discontinued operations (Note 2) and prior periods' revisions (Note 1 and Note 15)

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