Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Matching contributions and plan administrative expenses	$ 2.8	$ 2.5	$ 2.3
Minimum \| Prepaid Agreements
Loss Contingencies [Line Items]
Agreements, Term of Contract	1 year
Minimum \| Consulting Agreement
Loss Contingencies [Line Items]
Agreements, Term of Contract	1 year
Minimum \| Employment Agreement
Loss Contingencies [Line Items]
Agreements, Term of Contract	3 years
Maximum \| Prepaid Agreements
Loss Contingencies [Line Items]
Agreements, Term of Contract	10 years
Maximum \| Consulting Agreement
Loss Contingencies [Line Items]
Agreements, Term of Contract	5 years
Maximum \| Employment Agreement
Loss Contingencies [Line Items]
Agreements, Term of Contract	5 years