Warranties	12 Months Ended
	Dec. 31, 2021
Warranties [Abstract]
Warranties	8. Warranties Estimated future direct warranty costs are accrued and charged to cost of home sales revenues in the period when the related home sales revenues are recognized. Amounts accrued, which are included in accrued expenses and other liabilities on the consolidated balance sheets, are based upon historical experience rates. We subsequently assess the adequacy of our warranty accrual on a quarterly basis through a model that incorporates historical payment trends and adjust the amounts recorded if necessary. Based on favorable warranty payment trends relative to our estimates at the time of home closing, we reduced our warranty reserve by $5.4 million, $2.4 million and $1.9 million during the years ended December 31, 2021, 2020 and 2019, respectively, which is included as a reduction to cost of home sales revenues on our consolidated statements of operations.  Changes in our warranty accrual for the years ended December 31, 2021, 2020 and 2019 are detailed in the table below (in thousands): Year Ended December 31, 2021 2020 2019Beginning balance $ 13,824 $ 9,731 $ 7,970Warranty expense provisions 10,512 9,592 7,727Payments (5,615) (3,056) (4,024)Warranty adjustment (5,378) (2,443) (1,942)Ending balance $ 13,343 $ 13,824 $ 9,731