Commitments and Contingencies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	May 31, 2023	Dec. 31, 2022
Standby letter of credit | Uncommitted Letter of Credit Facility
Loss Contingencies [Line Items]
Uncommitted letter of credit facility	$ 35,000,000
Debt support standby letters of credit	$ 14,300,000		$ 14,100,000
Standby letter of credit | Uncommitted Letter of Credit Facility | Minimum
Loss Contingencies [Line Items]
Service fee percentage			1.10%
Standby letter of credit | Uncommitted Letter of Credit Facility | Maximum
Loss Contingencies [Line Items]
Service fee percentage	1.20%
Line of Credit | Credit Agreement
Loss Contingencies [Line Items]
Uncommitted letter of credit facility		$ 100,000,000
Revolving Credit Facility | Credit Agreement | Line of Credit
Loss Contingencies [Line Items]
Borrowings under credit agreement	$ 0		$ 0
Standby Letters of Credit Used for Collateral Requirements | Standby letter of credit | Uncommitted Letter of Credit Facility
Loss Contingencies [Line Items]
Letters of credit outstanding	14,300,000		$ 14,100,000
Gentry Case
Loss Contingencies [Line Items]
Allegations loss	$ 0