Acquisitions - Additional Information (Details)				3 Months Ended				6 Months Ended		15 Months Ended
	Jan. 12, 2026 USD ($) store	Jan. 02, 2026 USD ($) store country	Jan. 01, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2026 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2026 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)
Business Combination [Line Items]
Gain from remeasurement of previously held equity interest			$ 1,600,000			$ 1,600,000		$ 1,596,000	$ 0
Acquisition related cost							$ 700,000		$ 700,000
SMG | Secured Debt
Business Combination [Line Items]
Principal amount		$ 156,400,000
Stated interest rate		13.00%
Debt instrument, term		3 years
Founders One LLC
Business Combination [Line Items]
Equity securities, fair value		$ 15,000,000.0	$ 46,600,000								$ 45,000,000.0
Total assets		15,000,000.0										$ 15,000,000.0
Financing receivable, accrued interest, after allowance for credit loss		$ 3,900,000
Founders One LLC
Business Combination [Line Items]
Subsidiary, ownership percentage		87.70%
Founders One LLC
Business Combination [Line Items]
Number of stores | store		105
Number of additional countries | country		11
Founders One LLC | SMG
Business Combination [Line Items]
Subsidiary, ownership percentage		85.10%
Third Party | Founders One LLC
Business Combination [Line Items]
Subsidiary, ownership percentage, noncontrolling owner		12.30%
Third Party Shareholders | SMG
Business Combination [Line Items]
Subsidiary, ownership percentage, noncontrolling owner		14.90%
Founders One LLC
Business Combination [Line Items]
Equity securities, fair value		$ 45,000,000.0
Total assets		15,000,000.0
Payments to acquire businesses		$ 4,400,000
Equity interest acquired, percentage		87.70%
Expected tax deductible, amount		$ 0
Measurement period adjustments						$ 0
Revenue				$ 51,300,000
Income before income tax				$ 8,800,000
Acquisition related cost								$ 600,000		$ 1,500,000
El Bufalo Pawn
Business Combination [Line Items]
Payments to acquire businesses	$ 26,444,000
Revenue					$ 2,700,000
Income before income tax					$ 600,000
Number of pawn stores acquired | store	12
Initial purchase price	$ 27,800,000
Amount payable over next twelve months	$ 1,400,000