Strategic Investments - Summarized Financial Information (Details) - Cash Converters International Limited - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Summary of financial information for Cash Converters International Limited
Current assets	$ 229,105	$ 155,749
Non-current assets	148,195	150,843
Total assets	377,300	306,592
Current liabilities	122,924	57,387
Non-current liabilities	15,449	48,698
Shareholders’ equity	238,927	200,507
Total liabilities and shareholders’ equity	377,300	306,592
Gross revenues	201,800	204,509	$ 225,712
Gross profit	128,366	130,943	146,286
Net profit (loss)	$ 17,443	$ 15,546	$ (3,839)