Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenue:
Finance charges	$ 169.9	$ 152.8
Premiums earned	12.1	13.2
Other income	12.2	10.9
Total revenue	194.2	176.9
Costs and expenses:
Salaries and wages	30.4	25.6
General and administrative	9.1	8.2
Sales and marketing	11.7	9.6
Provision for credit losses	6.2	4.7
Interest	14.9	16.0
Provision for claims	8.6	11.0
Loss on extinguishment of debt	0	21.8
Total costs and expenses	80.9	96.9
Income before provision for income taxes	113.3	80.0
Provision for income taxes	41.8	30.2
Net income	$ 71.5	$ 49.8
Net income per share:
Basic (in usd per share)	$ 3.42	$ 2.12
Diluted (in usd per share)	$ 3.41	$ 2.12
Weighted average shares outstanding:
Basic (in shares)	20,922,620	23,463,380
Diluted (in shares)	20,948,676	23,528,466