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Liability for Warranty Returns (Tables)
6 Months Ended
Jun. 30, 2017
Product Warranties Disclosures [Abstract]  
Summary of Warranty Expense and Write-Off Activity

A summary of warranty expense and write-off activity for the three and six months ended June 30, 2017 and 2016 is as follows:

 

 

 

Three Months Ended

 

 

Six Months Ended

 

 

 

June 30,

 

 

June 30,

 

(In thousands)

 

2017

 

 

2016

 

 

2017

 

 

2016

 

Balance at beginning of period

 

$

8,988

 

 

$

9,042

 

 

$

8,548

 

 

$

8,739

 

Plus: Amounts charged to cost and expenses

 

 

3,055

 

 

 

1,431

 

 

 

2,314

 

 

 

2,329

 

Less: Deductions

 

 

(2,863

)

 

 

(1,538

)

 

 

(1,682

)

 

 

(2,133

)

Balance at end of period

 

$

9,180

 

 

$

8,935

 

 

$

9,180

 

 

$

8,935