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Commitments and contingencies (Tables)
 12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Summary of Changes in Product Warranty Reserves

Activity by period in the Company's warranty accruals was as follows:

 

 

Year ended December 31,

 

(in thousands)

 

2021

 

 

2020

 

 

2019

 

Balance at beginning of period

 

$

6,811

 

 

$

2,057

 

 

$

—

 

Warranties issued during the period

 

 

8,588

 

 

 

7,866

 

 

 

2,057

 

Settlements made during the period

 

 

(5,270

)

 

 

(3,111

)

 

 

—

 

Changes in liability for pre-existing warranties

 

 

(783

)

 

 

(1

)

 

 

—

 

Balance at end of period

 

$

9,346

 

 

$

6,811

 

 

$

2,057

 

 

 

 

 

 

 

 

 

 

 

Accrued warranty balance reported in:

 

 

 

 

 

 

 

 

 

Other current liabilities

 

$

4,032

 

 

$

3,985

 

 

$

1,368

 

Other non-current liabilities

 

 

5,314

 

 

 

2,826

 

 

 

689

 

Balance at end of period

 

$

9,346

 

 

$

6,811

 

 

$

2,057