Derivatives and Hedging Activities - Schedule of Amounts were Recorded on Balance Sheet Related to Cumulative Adjustments for Fair Value hedges (Details) - Loans Held For Sale - Derivatives Designated as Hedging Instruments $ in Thousands	Dec. 31, 2018 USD ($)
Derivative [Line Items]
Carrying Amount of the Hedged Item	$ 507,643
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Item	$ 4,821