Borrowings (Purchase Money Promissory Note) (Narrative) (Details) - USD ($) $ in Millions		9 Months Ended		12 Months Ended
	Sep. 18, 2019	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Purchase Money Promissory Note [Member]
Debt Instrument [Line Items]
Maturity date	Sep. 18, 2024	Sep. 18, 2024		Sep. 18, 2024
Interest rate	5.00%
Payment to repurchase shares	$ 3.5
Class A [Member]
Debt Instrument [Line Items]
Shares repurchased plan, shares		0	0
Class A [Member] | Purchase Money Promissory Note [Member]
Debt Instrument [Line Items]
Shares repurchased plan, shares	407,000
Payment to repurchase shares	$ 5.5