Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Long-Term Debt and Lease Obligation	$ 383.4	$ 120.8
Parent
Fixed-to-floating rate (percent)	5.25%
Long-Term Debt	$ 99.1	99.0
FHLB Borrowing maturing July 2025 | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	4.72%
Long-Term Debt	$ 250.0	0.0
Capital Lease Obligation, 8.00% | Subsidiaries | Capital Lease Obligations
Fixed-to-floating rate (percent)	8.00%
Finance Lease, Liability	$ 0.8	0.9
Note Payable, maturing December 31, 2041, 1.00% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	1.00%
Long-Term Debt	$ 5.1	5.1
Note Payable maturing March 31, 2038, 1.30% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	1.30%
Long-Term Debt	$ 2.0	2.0
Note Payable maturing June 1, 2034, 1.30% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	1.30%
Long-Term Debt	$ 0.6	0.6
Note Payable maturing December 31, 2045, 1.12% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	1.12%
Long-Term Debt	$ 6.8	6.8
Note Payable maturing December 31, 2046, 1.35% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	1.35%
Long-Term Debt	$ 6.4	6.4
Note Payable maturing March 31, 2038, 3.25% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	3.25%
Note Payable maturing December 31, 2051, 1.26% | Subsidiaries | Notes Payable, Other Payables
Fixed-to-floating rate (percent)	1.26%
Long-Term Debt	$ 12.6	$ 0.0