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Goodwill and Other Intangible Assets - Schedule of Servicing Asset at Amortized Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]        
Balance at beginning of period $ 2,722 $ 2,787 $ 2,811 $ 2,849
Additions 137 281 259 442
Amortization (220) (255) (431) (478)
Balance at end of period $ 2,639 $ 2,813 $ 2,639 $ 2,813