Strategic Investments - Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2024
Schedule of Equity Method Investments [Line Items]
Current assets	$ 1,066,957		$ 722,304		$ 1,066,957		$ 722,304		$ 728,998
Total assets	1,829,628		1,508,142		1,829,628		1,508,142		1,493,237
Current liabilities	264,039		173,195		264,039		173,195		269,377
Total liabilities and equity	1,829,628		1,508,142		1,829,628		1,508,142		$ 1,493,237
Gross profit	178,452		167,592		363,856		340,165
Net profit	$ 25,390	$ 31,016	$ 21,479	$ 28,470	$ 56,406		$ 49,949
Cash Converters International Limited
Schedule of Equity Method Investments [Line Items]
Current assets		171,745		186,572		$ 171,745		$ 186,572
Non-current assets		118,223		137,271		118,223		137,271
Total assets		289,968		323,843		289,968		323,843
Current liabilities		90,332		101,097		90,332		101,097
Non-current liabilities		63,455		79,926		63,455		79,926
Shareholders’ equity		136,181		142,820		136,181		142,820
Total liabilities and equity		$ 289,968		$ 323,843		289,968		323,843
Gross revenues						126,947		124,874
Gross profit						81,456		73,675
Net profit						$ 7,973		$ 6,499