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Derivatives and Hedging Derivatives and Hedging (Additional Information) (Details) | 12 Months Ended
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Dec. 31, 2019 USD ($) derivative | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Other Commitments [Line Items] |  |  |
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred | $ 833,000 |  |
Derivative, Number of Interest Rate Swap Agreements | derivative | 2 |  |
Unrealized Gain (Loss) on Derivatives | $ (61,000) | $ 89,000 |
Customer Loan Swaps [Member] |  |  |
Other Commitments [Line Items] |  |  |
Restricted Cash and Cash Equivalents | 18,400,000 | 5,100,000 |
Interest Rate Lock Commitments [Member] |  |  |
Other Commitments [Line Items] |  |  |
Unrealized Gain (Loss) on Derivatives | 395,000 | (218,000) | $ 98,000
Derivative, Notional Amount | 29,606,000 | 12,077,000 |
Forward Contracts [Member] |  |  |
Other Commitments [Line Items] |  |  |
Unrealized Gain (Loss) on Derivatives | 282,000 | (127,000) | (136,000)
Derivative, Notional Amount | 11,915,000 | 4,315,000 |
Interest Rate Swap On Loans [Member] |  |  |
Other Commitments [Line Items] |  |  |
Loss on Cash Flow Hedge Ineffectiveness | 0 |  |
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges | 214,000 |  |
Restricted Cash and Cash Equivalents | 560,000 |  |
Derivative, Notional Amount | 100,000,000 |  |
Interest Rate Swap [Member] |  |  |
Other Commitments [Line Items] |  |  |
Loss on Cash Flow Hedge Ineffectiveness | 0 | 0 | 0
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges | 738,000 | 889,000 | $ 1,300,000
Derivative, Notional Amount | 43,000,000 | 43,000,000 |
Forward-Starting Interest Rate Swap [Member] |  |  |
Other Commitments [Line Items] |  |  |
Derivative Instrument Payment Of Interest Rate Swaps Designated As Cash Flow Hedges |  | 58,000 |
Derivative, Notional Amount | 25,000,000 |  |
Other Assets [Member] | Interest Rate Lock Commitments [Member] |  |  |
Other Commitments [Line Items] |  |  |
Derivative, Notional Amount | 27,087,000 | 8,239,000 |
Other Assets [Member] | Forward Contracts [Member] |  |  |
Other Commitments [Line Items] |  |  |
Derivative, Notional Amount | 10,846,000 | 2,593,000 |
Other Assets [Member] | Interest Rate Swap [Member] |  |  |
Other Commitments [Line Items] |  |  |
Restricted Cash and Cash Equivalents | 8,800,000 | 5,800,000 |
Contract Two [Member] | Interest Rate Swap [Member] |  |  |
Other Commitments [Line Items] |  |  |
Derivative, Notional Amount | 10,000,000 | 10,000,000 |
Contract Two [Member] | Forward-Starting Interest Rate Swap [Member] |  |  |
Other Commitments [Line Items] |  |  |
Derivative, Notional Amount | $ 0 | $ 25,000,000 |

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