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Loans Held for Sale Schedule of Changes in Valuation Allowance (Details) - Valuation Allowance for Loans Held for Sale [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Beginning balance $ 8,503 $ 5,635 $ 7,318 $ 10,064
Provision (572) 490 281 854
Transfer from Liability for indemnification obligations (Other liabilities) 278 632 997 887
Sales of loans (674) (600) (1,083) (5,646)
Other 0 334 22 332
Ending balance $ 7,535 $ 6,491 $ 7,535 $ 6,491