Schedule II - Valuation And Qualification Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance at Beginning of Period	$ 3,886	$ 4,788	$ 371
Charged to Expenses	520	1,274	4,566
Deductions	(3,279)	(2,176)	(149)
Balance at End of Period	1,127	3,886	4,788
Doubtful Accounts
Balance at Beginning of Period	0	0	7
Charged to Expenses	0	0	(7)
Deductions	0	0	0
Balance at End of Period	0	0	0
Inventory
Balance at Beginning of Period	3,886	4,788	364
Charged to Expenses	520	1,274	4,573
Deductions	(3,279)	(2,176)	(149)
Balance at End of Period	$ 1,127	$ 3,886	$ 4,788