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Warranties (Tables)
9 Months Ended
Sep. 30, 2023
Guarantees [Abstract]  
Warranty
Changes in the warranty accrual are as follows:
 Three Months EndedNine Months Ended
 September 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
Warranty accrual:(in thousands)
Balance, beginning of period$16,900 $14,381 $15,682 $13,769 
Payments made(3,337)(2,196)(7,653)(5,094)
Warranty expense4,248 3,046 9,782 6,556 
Balance, end of period$17,811 $15,231 $17,811 $15,231