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Product Warranty (Tables)
 12 Months Ended
Dec. 31, 2017
Product Warranty  
Schedule of product warranty liability

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year ended December 31,

 

 

    

2017

    

2016

    

2015

 

 

 

(in thousands)

 

Balance at January 1 (beginning of year)

 

$

2,666

 

$

3,555

 

$

1,526

 

Warranties issued during the period

 

 

5,671

 

 

3,125

 

 

4,305

 

Settlements made during the period

 

 

(2,603)

 

 

(4,249)

 

 

(2,672)

 

Changes in estimate of liability for pre-existing warranties during the period

 

 

(1,232)

 

 

235

 

 

396

 

Balance at December 31 (end of period)

 

$

4,502

 

$

2,666

 

$

3,555

 

 

 

 

 

 

 

 

 

 

 

 

Amount classified as current

 

$

4,112

 

$

2,426

 

$

3,363

 

Amount classified as long-term

 

 

390

 

 

240

 

 

192

 

Total warranty liability

 

$

4,502

 

$

2,666

 

$

3,555