Commitments and Contingencies (Balance Sheet Information) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Commitments and Contingencies [Abstract]
Operating lease right-of-use assets in other non-current assets	$ 6,765	$ 5,081
Operating lease liabilities in accrued liabilities	1,700	1,844
Operating lease liabilities in other liabilities	7,636	5,998
Total operating lease liabilities	$ 9,336	$ 7,842