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Product Warranties (Tables)
 12 Months Ended
Dec. 31, 2019
Guarantees and Product Warranties [Abstract]  
Reconciliation of the Changes In the Aggregate Product Warranty Liability
Product warranty liability activity for the year ended December 31, 2019 and 2018 was as follows (in thousands):
 
Year Ended December 31,
 
2019
 
2018
Product warranty liability, beginning
$
4,555

 
$
4,186

Warranty charges incurred, net
(2,382
)
 
(3,152
)
Provision for warranty charges, net of adjustments
811

 
3,521

Product warranty liability, ending
$
2,984

 
$
4,555

Less: current portion of product warranty liability
(1,683
)
 
(2,669
)
Non-current portion of product warranty liability
$
1,301

 
$
1,886