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Warranties (Tables)
 3 Months Ended
Mar. 31, 2020
Warranties [Abstract]  
Schedule Of Changes In Warranty Accrual

Three Months Ended March 31,

2020

2019

Beginning balance

$

9,731

$

7,970

Warranty expense provisions

1,777

1,661

Payments

(689)

(1,020)

Warranty adjustment

(1,092)

22

Ending balance

$

9,727

$

8,633