Commitment and Contingencies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2021	Sep. 30, 2023	Jan. 01, 2023
Loss Contingencies [Line Items]
Off-balance-sheet, credit loss, liability	$ 3.1		$ 3.1	$ 2.9
Case Settled in the Third Quarter of 2021
Loss Contingencies [Line Items]
Litigation settlement, amount		$ 1.1
Insurance coverage receivable		$ 0.9
Minimum | Overpayment Of Interest On A Loan
Loss Contingencies [Line Items]
Lawsuit alleging fault for a loss of funds with possible loss	0.0		0.0
Maximum | Overpayment Of Interest On A Loan
Loss Contingencies [Line Items]
Lawsuit alleging fault for a loss of funds with possible loss	1.5		1.5
Unfunded Commitments under lines of credit
Loss Contingencies [Line Items]
Provision for credit losses	$ 0.1		$ 0.2