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Advances Schedule of Changes in Allowance for Losses (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Advances [Abstract]    
Beginning balance $ 37,952 $ 41,901
Provision 3,421 3,483
Charge-offs, net and other (5,529) (2,861)
Ending balance $ 35,844 $ 42,523