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Product Warranties (Tables)
3 Months Ended
Mar. 31, 2021
Product Warranties Disclosures [Abstract]  
Summary of Changes in Product Warranties Reserve
The following table reflects the changes in our Warranty Reserve during the three months ended March 31, 2021 and 2020:
 Three Months Ended March 31,
 20212020
Warranty reserve, beginning of period$119,638 $108,053 
Provision22,329 12,421 
Payments(17,131)(13,442)
Warranty reserve, end of period$124,836 $107,032