Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue:
Finance charges	$ 134,002	$ 113,830	$ 260,068	$ 220,333
Premiums earned	12,011	10,190	22,781	18,733
Other income	5,768	5,945	11,336	14,411
Total revenue	151,781	129,965	294,185	253,477
Costs and expenses:
Salaries and wages	20,406	15,402	39,810	31,473
General and administrative	7,257	6,509	14,666	12,142
Sales and marketing	7,596	5,772	15,349	12,181
Provision for credit losses	2,710	8,928	7,957	17,844
Interest	15,649	14,950	30,861	27,573
Provision for claims	9,030	7,771	17,582	14,370
Total costs and expenses	62,648	59,332	126,225	115,583
Income before provision for income taxes	89,133	70,633	167,960	137,894
Provision for income taxes	32,620	25,789	61,109	49,859
Net income	$ 56,513	$ 44,844	$ 106,851	$ 88,035
Net income per share:
Basic	$ 2.18	$ 1.73	$ 4.11	$ 3.31
Diluted	$ 2.18	$ 1.72	$ 4.10	$ 3.29
Weighted average shares outstanding:
Basic	25,926	25,975	25,993	26,582
Diluted	25,980	26,111	26,083	26,796