Derivatives - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 430	$ 508
Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative assets	514	853
Derivative liabilities	300	246
Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Derivative assets	1,237	978
Retail interest rate contracts
Derivatives, Fair Value [Line Items]
Derivative liabilities	130	262
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative assets	1,537	1,224
Derivative liabilities	430	508
Not Designated as Hedging Instrument | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative assets	300	246
Derivative liabilities	300	246
Not Designated as Hedging Instrument | Interest rate swaps | Other assets
Derivatives, Fair Value [Line Items]
Derivative assets	300	246
Not Designated as Hedging Instrument | Interest rate swaps | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	300	246
Not Designated as Hedging Instrument | Interest rate lock commitments | Other assets
Derivatives, Fair Value [Line Items]
Derivative assets	1,237	978
Not Designated as Hedging Instrument | Retail interest rate contracts
Derivatives, Fair Value [Line Items]
Derivative liabilities	130	262
Not Designated as Hedging Instrument | Retail interest rate contracts | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 130	$ 262