Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Finance charges	$ 259.4	$ 223.9	$ 749.2	$ 641.9
Premiums earned	10.3	10.7	30.9	32.4
Other income	14.2	12.0	42.6	38.7
Total revenue	283.9	246.6	822.7	713.0
Costs and expenses:
Salaries and wages	33.7	32.4	101.9	95.2
General and administrative	14.2	11.0	42.1	35.7
Sales and marketing	14.2	12.2	43.7	37.8
Provision for credit losses	25.7	22.8	68.0	62.8
Interest	30.5	25.1	88.0	71.5
Provision for claims	5.5	6.6	17.6	20.4
Total costs and expenses	123.8	110.1	361.3	323.4
Income before provision for income taxes	160.1	136.5	461.4	389.6
Provision for income taxes	59.4	50.6	168.3	144.4
Net income	$ 100.7	$ 85.9	$ 293.1	$ 245.2
Net income per share:
Basic (in usd per share)	$ 5.19	$ 4.22	$ 15.01	$ 12.02
Diluted (in usd per share)	$ 5.19	$ 4.21	$ 14.99	$ 12.01
Weighted average shares outstanding:
Basic (in shares)	19,407,344	20,379,557	19,528,175	20,398,037
Diluted (in shares)	19,415,545	20,384,624	19,547,674	20,415,981