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Liability for Warranty Returns (Tables)
 9 Months Ended
Sep. 30, 2021
Product Warranties Disclosures [Abstract]  
Summary of Reversal of Prior Provisions Related to Warranty Expirations During the three and nine months ended September 30, 2021 and 2020, we had a net reversal of prior provisions related to warranty expirations, the impact of which is reflected in the table below:

 

 

 

Three Months Ended

 

 

Nine Months Ended

 

 

 

September 30,

 

 

September 30,

 

(In thousands)

 

2021

 

 

2020

 

 

2021

 

 

2020

 

Balance at beginning of period

 

$

5,997

 

 

$

7,294

 

 

$

7,146

 

 

$

8,394

 

Plus: Amounts charged to cost and expenses

 

 

472

 

 

 

632

 

 

 

253

 

 

 

970

 

Less: Deductions

 

 

(822

)

 

 

(734

)

 

 

(1,752

)

 

 

(2,172

)

Balance at end of period

 

$

5,647

 

 

$

7,192

 

 

$

5,647

 

 

$

7,192