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2. Finance Receivables (Details - Finance credit losses) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Finance Receivables        
Balance at beginning of period $ 94,376 $ 107,315 $ 109,187 $ 95,578
Provision for credit losses 31,959 47,336 107,997 143,053
Charge-offs (54,033) (53,628) (163,628) (152,401)
Recoveries 10,170 7,596 28,916 22,389
Balance at end of period $ 82,472 $ 108,619 $ 82,472 $ 108,619