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Commitments And Contingencies (Changes To Warranty Liability) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Changes to warranty liabilities [Roll Forward]      
Warranty liabilities, beginning of period $ 82,744 $ 91,389 $ 79,154
Warranty reserves provided 93,919 64,492 60,818
Payments (73,760) (70,869) (75,635)
Other adjustments 4,214 (2,268) 27,052
Warranty liabilities, end of period $ 107,117 $ 82,744 $ 91,389