3. Finance Receivables (Detail 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Finance Receivables Details
Balance at beginning of period	$ 10,351	$ 13,168
Provision for credit losses	33,495	15,508
Charge-offs	(37,638)	(35,516)
Recoveries	13,386	17,191
Balance at end of period	$ 19,594	$ 10,351