Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Credit Loss [Abstract]
Short-term Receivables, Gross	$ 28,869	$ 18,512
Contract with Customer, Asset, before Allowance for Credit Loss	32,497	34,818
Accounts Receivable, Allowance for Credit Loss	(3,312)	(2,358)
Allowance for credit loss in long-term contract receivable	1,126	1,554
Long-term Investments and Receivables, Net	31,371	33,264
Short-term receivables, net of CECL	25,557	16,154
Total receivables, Gross	61,366	53,330
CECL Allowance - total	(4,438)	(3,912)
Total receivables, net of CECL	56,928	49,418
Financing Receivable, Credit Loss, Expense (Reversal)	(500)	0
Bad debt expense	$ 2,572	$ 4,001	$ 7,462