SEC Schedule, Article 12-09, Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Warranty and return reserve - inventory write-offs	$ 0	$ 0	$ 0
Warranty and return reserve - inventory - charged to other accounts	(533)	(169)	(722)
Warranty and Return Reserve costs	263	2,033	(217)
Warranty and return reserve - inventory	(1,883)	(1,613)	(3,477)	$ (2,538)
SEC Schedule, 12-09, Allowance, Credit Loss
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	21,490	20,219	5,768
Charged to Costs and Expenses	345	7,137	14,882
Charged to Other Accounts	(14,797)	(5,866)	(431)
Write-off/ Disposals	0	0	0
Balance at End of Period	7,038	21,490	20,219
SEC Schedule, 12-09, Reserve, Warranty
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	2,707	6,377	6,752
Charged to Costs and Expenses	568	(3,609)	83
Charged to Other Accounts	(790)	(61)	(458)
Write-off/ Disposals	0	0	0
Balance at End of Period	2,485	2,707	6,377
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	3,891	3,677	5,436
Charged to Costs and Expenses	0	0	0
Charged to Other Accounts	(957)	214	(1,584)
Write-off/ Disposals	0	0	(175)
Balance at End of Period	$ 2,934	$ 3,891	$ 3,677