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Goodwill and Other Intangible Assets - Estimated Amortization Expense of Servicing Rights (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Finite-Lived Intangible Assets [Line Items]  
Remainder of 2017 $ 1,350
2018 2,114
2019 1,565
2020 1,200
2021 924
Thereafter 1,534
Servicing Rights [Member]  
Finite-Lived Intangible Assets [Line Items]  
Remainder of 2017 955
2018 833
2019 722
2020 624
2021 538
Thereafter $ 2,876