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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | The following table shows changes in the carrying amount of goodwill, for the years ended December 31, 2017, 2016 and 2015.
|  | Autocam Precision Components Group |  |  | Precision Engineered Products Group |  |  | Total |
Balance as of December 31, 2015 |  | $ | 73,864 |  |  | $ | 374,535 |  |  | $ | 448,399 |
Currency impacts |  |  | (601 | ) |  |  | (2,464 | ) |  |  | (3,065 | )
Adjustments to goodwill |  |  | — |  |  |  | (1,805 | ) |  |  | (1,805 | )
Balance as of December 31, 2016 |  | $ | 73,263 |  |  | $ | 370,266 |  |  | $ | 443,529 |
Currency impacts |  |  | 884 |  |  |  | 747 |  |  |  | 1,631 |
Goodwill acquired in acquisition |  |  | — |  |  |  | 9,452 |  |  |  | 9,452 |
Balance as of December 31, 2017 |  | $ | 74,147 |  |  | $ | 380,465 |  |  | $ | 454,612 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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