Schedule II Valuation and Qualifying Accounts and Reserves Supplemental Schedule (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts receivable reserves
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 3,204	$ 2,078	$ 2,800
Charged to Costs and Expenses	178	2,441	1,255
Charged to Other Accounts	0	0	0
Deductions	(1,040)	(1,315)	(1,977)
Balance at End of Period	2,342	3,204	2,078
Deferred tax assets valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	0	114	1,747
Charged to Costs and Expenses	0	0	0
Charged to Other Accounts	0	0	0
Deductions		(114)	(1,633)
Balance at End of Period	$ 0	$ 0	$ 114