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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, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Beginning balance $ 5,635 $ 17,993 $ 10,064 $ 14,658
Provision 490 (434) 854 2,163
Transfer from liability for indemnification obligations 632 675 887 1,705
Sales of loans (600) (2,249) (5,646) (2,249)
Other 334 (52) 332 (344)
Ending balance $ 6,491 $ 15,933 $ 6,491 $ 15,933