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Borrowings - Narrative (Details) - USD ($)			1 Months Ended	3 Months Ended
	Jun. 01, 2022	Jun. 01, 2012	Jan. 31, 2010	Dec. 31, 2024	Dec. 31, 2023	Jan. 27, 2025	Sep. 30, 2024
Line of Credit Facility [Abstract]
Debt repurchased				$ 0
Loss on extinguishment of debt, net				0	$ (13,000)
Senior Notes
Line of Credit Facility [Abstract]
Debt repurchased					4,300,000
Loss on extinguishment of debt, net					$ 100,000
Junior Subordinated Notes
Line of Credit Facility [Abstract]
Aggregate principle balance of notes				$ 100,800,000
Weighted average fixed interest rate of debt				7.30%
Junior Subordinated Debt, Modified Terms
Line of Credit Facility [Abstract]
Aggregate principal amount of debt			$ 75,000,000.0
Variable rate floor			4.25%
Variable rate cap			9.25%
Redemption price percentage		75.00%
Annual increase of percentage of principal amount redeemable	1.785%
Junior Subordinated Debt, Original Terms
Line of Credit Facility [Abstract]
Aggregate principal amount of debt				$ 25,800,000
Basis spread on variable rate			2.71%
Senior Unsecured Revolving Credit Facility
Line of Credit Facility [Abstract]
Credit facility, maximum borrowing capacity, including letters of credit				400,000,000
Credit facility, available increase in borrowing capacity				100,000,000
Senior Unsecured Revolving Credit Facility				45,000,000			$ 0
Letters of credit secured using cash collateral				0
Amount of available borrowings under the secured revolving credit facility				255,000,000.0
Senior Unsecured Revolving Credit Facility | Senior Notes
Line of Credit Facility [Abstract]
Credit facility, maximum borrowing capacity, including letters of credit				300,000,000
Senior Unsecured Revolving Credit Facility | Senior Notes | Subsequent Event
Line of Credit Facility [Abstract]
Credit facility, maximum borrowing capacity, including letters of credit						$ 365,000,000
Letter of Credit
Line of Credit Facility [Abstract]
Letters of credit secured using cash collateral				37,100,000			$ 36,700,000
Letter of Credit | Senior Notes
Line of Credit Facility [Abstract]
Credit facility, maximum borrowing capacity, including letters of credit				$ 100,000,000

X

- Definition

Debt Instrument, Cap Interest Rate

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Debt Instrument, Floor Interest Rate

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Debt Instrument, Redemption Price, Annual Increase In Percentage

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- Definition

Line of Credit Facility, Available Increase In Borrowing Capacity

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No definition available.

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X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Fair value amount of debt instrument that was repurchased.

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No definition available.

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- Definition

Weighted average interest rate of debt outstanding.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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X

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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