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Revenue Recognition (Contract Balances) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Trade accounts receivable
Balance, January 1, 2023	$ 409
Balance, June 30, 2023	0
Increase (decrease) in trade accounts receivable	(409)
Contract asset (current)
Increase (decrease) in contract asset (current)	(409)
Contract asset (long-term)
Balance, January 1, 2023	5,985
Balance, June 30, 2023	3,559
Increase (decrease) in contract asset (long-term)	(2,426)
Contract liability (current)
Balance, January 1, 2023	833
Balance, June 30, 2023	1,122
Increase (decrease) in contract liability (current)	289
Contract liability (long-term)
Balance, January 1, 2023	1,709
Balance, June 30, 2023	1,626
Increase (decrease) in contract liability (long-term)	(83)
Trade Accounts Receivable
Trade accounts receivable
Balance, January 1, 2023	37,940
Balance, June 30, 2023	46,047
Increase (decrease) in trade accounts receivable	8,107
Contract asset (current)
Increase (decrease) in contract asset (current)	$ 8,107

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