Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue:
Finance charges	$ 223.9	$ 186.2	$ 641.9	$ 536.3
Premiums earned	10.7	12.0	32.4	36.7
Other income	12.0	12.0	38.7	34.5
Total revenue	246.6	210.2	713.0	607.5
Costs and expenses:
Salaries and wages	32.4	28.6	95.2	87.5
General and administrative	11.0	9.8	35.7	28.0
Sales and marketing	12.2	11.9	37.8	34.5
Provision for credit losses	22.8	13.2	62.8	27.8
Interest	25.1	20.4	71.5	54.9
Provision for claims	6.6	8.4	20.4	26.2
Total costs and expenses	110.1	92.3	323.4	258.9
Income before provision for income taxes	136.5	117.9	389.6	348.6
Provision for income taxes	50.6	43.9	144.4	128.9
Net income	$ 85.9	$ 74.0	$ 245.2	$ 219.7
Net income per share:
Basic (in usd per share)	$ 4.22	$ 3.53	$ 12.02	$ 10.49
Diluted (in usd per share)	$ 4.21	$ 3.53	$ 12.01	$ 10.49
Weighted average shares outstanding:
Basic (in shares)	20,379,557	20,946,827	20,398,037	20,938,847
Diluted (in shares)	20,384,624	20,952,711	20,415,981	20,949,508