Debt Instrument, Cap Interest Rate

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- Definition

Debt Instrument, Covenant, Aggregate Amount Of Other Investments Permitted

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- Definition

Debt Instrument, Floor Interest Rate

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- Definition

Debt Instrument, Minimum Housing Collateral Ratio

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- Definition

Debt Instrument, Minimum Liquidity, Amount

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- Definition

Debt Instrument, Minimum Liquidity Covenant, Interest Coverage Ratio

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Debt Instrument, Minimum Liquidity, Outside of Initial Requirements, Amount

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- Definition

Debt Instrument, Redemption Price, Annual Increase In Percentage

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Line of Credit Facility, Number of Lenders

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Ownership Interest In Guarantor Subsidiaries

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- 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.

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- Definition

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

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount of the required periodic payments including both interest and principal payments.

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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

Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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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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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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

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The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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Borrowings - Narrative (Details)				1 Months Ended	3 Months Ended		9 Months Ended
Borrowings - Narrative (Details)	Jun. 01, 2022	Sep. 09, 2019 USD ($)	Jun. 01, 2012	Jan. 31, 2010 USD ($)	Jun. 30, 2021 USD ($) lender	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) lender	Jun. 30, 2020 USD ($)	Oct. 08, 2020 USD ($)	Sep. 30, 2020 USD ($)	May 31, 2018 USD ($)	Oct. 31, 2017
Senior Notes [Abstract]
Ownership interest In guarantor subsidiaries					100.00%		100.00%
Loss on extinguishment of debt					$ 1,050,000	$ 0	$ 1,613,000	$ 0
Senior Notes \| Senior Unsecured Term Loans September 2022
Unsecured Debt [Abstract]
Aggregate principal amount of debt					$ 100,000,000.0		$ 100,000,000.0
Periodic payment		$ 50,000,000.0
Stated interest rate on debt instrument		4.875%
Senior Notes \| 5 7/8% Senior Notes (2027 Notes)
Unsecured Debt [Abstract]
Stated interest rate on debt instrument					5.88%		5.88%					0.0588%
Senior Notes [Abstract]
Redemption of senior debt					$ 14,000,000.0		$ 23,700,000
Loss on extinguishment of debt					1,100,000		$ 1,600,000
Junior Subordinated Notes [Abstract]
Redemption price percentage							105.875%
Junior Subordinated Notes
Junior Subordinated Notes [Abstract]
Aggregate principle balance of notes					$ 100,800,000		$ 100,800,000
Weighted average fixed interest rate of debt					3.84%		3.84%
Unamortized accretion					$ 31,086,000		$ 31,086,000			$ 32,636,000
Junior Subordinated Debt, Modified Terms
Unsecured Debt [Abstract]
Aggregate principal amount of debt				$ 75,000,000.0
Junior Subordinated Notes [Abstract]
Redemption price percentage			75.00%
Junior Subordinated Debt, Modified Terms \| LIBOR
Junior Subordinated Notes [Abstract]
Variable rate floor				4.25%
Variable rate cap				9.25%
Junior Subordinated Debt, Modified Terms \| Forecast
Junior Subordinated Notes [Abstract]
Annual increase of percentage of principal amount redeemable	1.785%
Junior Subordinated Debt, Original Terms
Unsecured Debt [Abstract]
Aggregate principal amount of debt					25,800,000		$ 25,800,000
Junior Subordinated Debt, Original Terms \| LIBOR
Junior Subordinated Notes [Abstract]
Basis spread on variable rate							2.45%
Revolving Credit Facility
Line of Credit Facility [Abstract]
Credit facility borrowing capacity					$ 250,000,000.0		$ 250,000,000.0
Number of lenders \| lender					4		4
Covenant, aggregate amount of other investments									$ 300,000,000.0
Minimum liquidity covenant, interest coverage ratio									1.00
Minimum housing collateral ratio									1.75
Minimum liquidity, amount									$ 50,000,000.0
Minimum liquidity, outside of initial requirements, amount									$ 100,000,000.0
Borrowings outstanding					$ 0		$ 0			0
Letters of credit secured using cash collateral					0		0			0
Amount of available borrowings under the secured revolving credit facility					250,000,000.0		250,000,000.0
Letter of Credit, Cash Secured
Line of Credit Facility [Abstract]
Letters of credit secured using cash collateral					18,600,000		18,600,000			$ 12,700,000
Standby Letters of Credit \| Standby Letters for Credit Facility
Line of Credit Facility [Abstract]
Credit facility borrowing capacity											$ 50,000,000.0
Letters of credit secured using cash collateral					$ 12,200,000		$ 12,200,000
Standby Letters of Credit \| Backstop Standby Letters of Credit
Line of Credit Facility [Abstract]
Credit facility borrowing capacity											$ 40,000,000.0