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Summary of Accounting Policies - Extended Product Warranty Contracts (Details) | 12 Months Ended
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Dec. 31, 2016
Minimum |
Extended product warranty |
Extended product warranty contracts, estimated life | 5 years
Maximum |
Extended product warranty |
Extended product warranty contracts, estimated life | 40 years
Weighted Average |
Extended product warranty |
Extended product warranty contracts, estimated life | 19 years

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- Definition Represents the estimated useful life of extended product warranty contracts over which revenues for the sale of these contracts is deferred and amortized. + References No definition available. + Details
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- Details
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