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Component: (Network and Table)
Network
100580 - Disclosure - Warranty Costs - Changes in Carrying Amount of Accrued Product Warranty Costs (Detail)
(http://www.altramotion.com/20161231/taxonomy/role/DisclosureWarrantyCostsChangesInCarryingAmountOfAccruedProductWarrantyCostsDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001374535 (http://www.sec.gov/CIK)
Guarantees [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Guarantees [Abstract]
 
 
 
Movement in Liabilities for Guarantees on Long-Duration Contracts, Guaranteed Benefit Liability, Gross [Roll Forward]
 
 
 
Balance at beginning of period
9,468,000  
7,792,000  
8,739,000  
Accrued current period warranty expense
1,355,000  
4,429,000  
1,537,000  
Acquired warranty reserve
1,636,000  
  
Payments and adjustments
(3,301,000) 
(2,753,000) 
(2,484,000) 
Balance at end of period
9,158,000  
 
9,468,000  
 
7,792,000