Schedule II - Valuation and Qualifying Accounts - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts receivable allowance
Valuation allowance and reserves
Balance at Beginning of Period	$ 3,393	$ 3,717	$ 4,729
Additions Charged to Expense	1,568	1,068	(20)
Charged to Other Accounts	74	(142)	278
Charges Utilized (Write-off)	(324)	(1,250)	(1,270)
Balance at End of Period	4,711	3,393	3,717
Noncurrent other assets allowance
Valuation allowance and reserves
Balance at Beginning of Period	0	2,753	0
Additions Charged to Expense	42	0	2,753
Charged to Other Accounts	0	0	0
Charges Utilized (Write-off)	0	(2,753)	0
Balance at End of Period	$ 42	$ 0	$ 2,753