Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Finance charges	$ 270.3	$ 238.0
Premiums earned	10.3	10.1
Other income	15.0	14.7
Total revenue	295.6	262.8
Costs and expenses:
Salaries and wages	42.5	35.5
General and administrative	14.5	13.9
Sales and marketing	17.8	15.1
Provision for credit losses	23.4	20.5
Interest	34.5	27.6
Provision for claims	5.2	6.0
Total costs and expenses	137.9	118.6
Income before provision for income taxes	157.7	144.2
Provision for income taxes	37.6	50.9
Net income	$ 120.1	$ 93.3
Net income per share:
Basic (in usd per share)	$ 6.18	$ 4.73
Diluted (in usd per share)	$ 6.17	$ 4.72
Weighted average shares outstanding:
Basic (in shares)	19,437,735	19,722,491
Diluted (in shares)	19,473,563	19,772,658