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

Year ended December 31,

2020

2019

2018

Beginning balance

$

9,731

$

7,970

$

8,531

Warranty reserve assumed in business combination

397

Warranty expense provisions

9,592

7,727

6,686

Payments

(3,056)

(4,024)

(4,204)

Warranty adjustment

(2,443)

(1,942)

(3,440)

Ending balance

$

13,824

$

9,731

$

7,970