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Segment Information - Segment Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from external customers | $ 204,961 | $ 154,824 | $ 631,459 | $ 483,425 |
Income (loss) from operations | 18,727 | 10,122 | 47,304 | 37,645 |
Total assets | 1,381,648 | 719,476 | 1,381,648 | 719,476 | $ 1,380,567
Corporate and Consolidations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) from operations | (5,490) | (8,000) | (20,212) | (16,496) |
Total assets | 7,515 | 50,070 | 7,515 | 50,070 |
Precision Bearing Components Group [Member] | Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from external customers | 58,247 | 60,545 | 188,149 | 203,041 |
Income (loss) from operations | 5,840 | 6,633 | 18,639 | 25,125 |
Total assets | 224,531 | 209,120 | 224,531 | 209,120 |
Autocam Precision Components Group [Member] | Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from external customers | 80,492 | 83,243 | 247,473 | 252,336 |
Income (loss) from operations | 8,464 | 10,894 | 22,761 | 27,707 |
Total assets | 421,946 | 431,478 | 421,946 | 431,478 |
PEP [Member] | Operating Segments [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues from external customers | 66,222 | 11,036 | 195,837 | 28,048 |
Income (loss) from operations | 9,913 | 595 | 26,116 | 1,309 |
Total assets | $ 727,656 | $ 28,808 | $ 727,656 | $ 28,808 |

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