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Product Warranties Product Warranties - Schedule of Product Warranties Reserves (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]    
Warranty reserve, beginning of period $ 108,053 $ 103,700
Provision 12,421 11,823
Payments (13,442) (12,671)
Warranty reserve, end of period $ 107,032 $ 102,852