Strategic Investments - Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Summary of financial information for Cash Converters International Limited
Current assets	$ 593,250				$ 605,760				$ 593,250	$ 605,760
Total assets	1,197,023				1,083,702				1,197,023	1,083,702
Current liabilities	132,467				91,086				132,467	91,086
Total liabilities and equity	1,197,023				1,083,702				1,197,023	1,083,702
Gross profit	89,617	$ 102,184	$ 127,365	$ 130,069	120,856	$ 115,853	$ 127,690	$ 130,049	449,235	494,448	$ 481,551
Net (loss) profit					(645)	$ 3,158	$ 3,394	$ (3,366)	(68,463)	2,541	37,282
Cash Converters International Limited
Summary of financial information for Cash Converters International Limited
Current assets	157,183				173,826				157,183	173,826
Non-current assets	172,833				152,483				172,833	152,483
Total assets	330,016				326,309				330,016	326,309
Current liabilities	68,028				77,434				68,028	77,434
Non-current liabilities	51,275				26,163				51,275	26,163
Shareholders’ equity	210,713				222,712				210,713	222,712
Total liabilities and equity	$ 330,016				$ 326,309				330,016	326,309
Gross revenues									187,025	201,365	201,800
Gross profit									112,511	111,932	128,366
Net (loss) profit									$ (7,032)	$ (1,210)	$ 17,443