Strategic Investments - Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Summary of financial information for Cash Converters International Limited
Current assets	$ 719,168	$ 662,416	$ 719,719
Total assets	1,481,193	1,402,315	1,467,711
Current liabilities	179,997	139,005	191,972
Shareholders’ equity	774,883	705,335	745,768	$ 692,231
Total liabilities and equity	1,481,193	1,402,315	1,467,711
Gross profit	172,573	152,497
Net (loss) profit	28,470	16,778
Cash Converters International Limited
Summary of financial information for Cash Converters International Limited
Current assets			189,563	158,987
Non-current assets			103,595	170,798
Total assets			293,158	329,785
Current liabilities			97,630	59,256
Non-current liabilities			58,777	53,045
Shareholders’ equity			136,751	217,484
Total liabilities and equity			$ 293,158	$ 329,785
Gross revenues	203,608	178,215
Gross profit	125,709	116,106
Net (loss) profit	$ (65,351)	$ 8,099