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Warranty Reserve (Tables)
 12 Months Ended
Dec. 31, 2019
Product Warranties Disclosures [Abstract]  
Schedule of Activity in the Warranty Reserve The following is a summary of the activity in the warranty reserve:
 
2019
 
2018
 
2017
 
(Amounts in thousands)
Balance — January 1
$
32,033

 
$
33,601

 
$
30,459

Accruals for warranty expense, net of adjustments
26,215

 
28,454

 
35,001

Settlements made
(27,394
)
 
(30,022
)
 
(31,859
)
Balance — December 31
$
30,854

 
$
32,033

 
$
33,601