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Product Warranty Provisions (Tables)
9 Months Ended
Sep. 30, 2019
Product Warranties Disclosures [Abstract]  
Schedule of Accrued Warranty

Accrued warranty, which is included in other accrued liabilities, consists of the following:

 

    September 30, 2019     December 31, 2018  
Warranty accrual, beginning of the fiscal period   $ 149,464     $ 164,365  
Accrual adjustment for product warranty     41,023       34,253  
Payments made     (44,019 )     (49,154 )
Warranty accrual, end of the fiscal period   $ 146,468     $ 149,464