3. Finance Receivables (Details-Delinquency status) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Delinquency Status
Finance receivables, past due	$ 2,266,619	$ 1,990,913
Financing Receivables, 1 to 31 Days Past Due [Member]
Delinquency Status
Finance receivables, past due	2,053,759	1,836,267
Financing Receivables, 31 to 60 Days Past Due [Member]
Delinquency Status
Finance receivables, past due	116,073	70,036
Financing Receivables, 61 to 90 Days Past Due [Member]
Delinquency Status
Finance receivables, past due	52,404	41,136
Financing Receivables, 91 + days past due [Member]
Delinquency Status
Finance receivables, past due	$ 44,383	$ 43,474