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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Summary of Warranty Accrual Included in Accrued Liabilities
Activity for the Company’s warranty accrual, which is included in “Accrued and other current liabilities”, is summarized below (in thousands):
 
2019
 
2018
 
2017
Balance at beginning of period
$
4,869

 
$
4,381

 
$
4,862

   Accrual for current period warranties
5,524

 
6,612

 
5,117

   Warranty costs incurred
(6,079
)
 
(6,124
)
 
(5,598
)
Balance at end of period
$
4,314

 
$
4,869

 
$
4,381