| Component: (Network and Table) | |
|---|---|
| Network | 100590 - Disclosure - Income Taxes - Income Before Income Taxes by Domestic and Foreign Locations (Detail) (http://www.altramotion.com/20161231/taxonomy/role/DisclosureIncomeTaxesIncomeBeforeIncomeTaxesByDomesticAndForeignLocationsDetail) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001374535 (http://www.sec.gov/CIK) |
| Income Tax Disclosure [Abstract] | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | 2014-01-01 - 2014-12-31 | |
Income Tax Disclosure [Abstract] | |||
Domestic | |||
Foreign | |||
Income before income taxes | 33,885,000 | 51,087,000 | 63,118,000 |