Strategic Investments - Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Summary of financial information for Cash Converters International Limited
Current assets	$ 610,861				$ 593,250				$ 610,861	$ 593,250
Total assets	1,266,911				1,197,023				1,266,911	1,197,023
Current liabilities	155,088				132,467				155,088	132,467
Total liabilities and equity	1,266,911				1,197,023				1,266,911	1,197,023
Gross profit	119,326	$ 108,021	$ 113,748	$ 108,390	89,596	$ 102,175	$ 127,362	$ 130,069	449,485	449,201	$ 494,448
Net profit (loss)	1,553	$ (2,570)	$ 5,330	$ 4,299	(23,340)	$ (5,487)	$ (40,874)	$ 1,238	8,612	(68,463)	2,541
Cash Converters International Limited
Summary of financial information for Cash Converters International Limited
Current assets	167,553				157,183				167,553	157,183
Non-current assets	191,788				172,833				191,788	172,833
Total assets	359,341				330,016				359,341	330,016
Current liabilities	61,395				68,028				61,395	68,028
Non-current liabilities	57,511				51,275				57,511	51,275
Shareholders’ equity	240,435				210,713				240,435	210,713
Total liabilities and equity	$ 359,341				$ 330,016				359,341	330,016
Gross revenues									150,165	187,025	201,365
Gross profit									105,851	112,511	111,932
Net profit (loss)									$ 12,081	$ (7,032)	$ (1,210)