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Derivative Instruments - Hedge Derivatives (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivative [Line Items] |  |  |
Derivative, Gain (Loss) on Derivative, Net | $ 846,000 | $ (1,109,000) | $ (80,000)
Loss (gain) on cash flow hedges reclassified from other comprehensive income into net income, net of tax | (9,645,000) | 5,542,000 | 1,588,000
Amortization | 1,600,000 | 2,300,000 | 2,700,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | 10,000,000 |  |
Hedging derivative | Cash flow hedge |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) in Accumulated Other Comprehensive Income | (15,034,000) | 65,426,000 | (2,581,000)
Hedging derivative | Fair value hedge |  |  |
Derivative [Line Items] |  |  |
Amortization | 3,500,000 | 4,300,000 | 2,700,000
Hedging derivative | Fair value hedge | Securities |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets | 1,165,773,000 | 841,543,000 |
Fair Value Hedging Adjustment | 24,672,000 | 67,314,000 |
Gain (Loss) on Fair Value Hedges Recognized in Earnings | 42,642,000 | (26,536,000) | (25,982,000)
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | (42,642,000) | 26,536,000 | 25,982,000
Notional | 1,031,490,000 | 708,931,000 |
Fair Value Hedges, Net | (24,672,000) | (67,314,000) |
Hedging derivative | Fair value hedge | Securities | LIBOR |  |  |
Derivative [Line Items] |  |  |
Forecasted Notional Amount of Interest Rate Derivatives | 471,700,000 |  |
Hedging derivative | Fair value hedge | Securities | Federal Funds Rate |  |  |
Derivative [Line Items] |  |  |
Forecasted Notional Amount of Interest Rate Derivatives | 559,800,000 |  |
Hedging derivative | Fair value hedge | Loans |  |  |
Derivative [Line Items] |  |  |
Gain (Loss) on Fair Value Hedges Recognized in Earnings | 0 | 0 | (6,915,000)
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 6,915,000
Asset derivatives | Hedging derivative | Cash flow hedge |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) in Accumulated Other Comprehensive Income | $ (15,034,000) | 62,979,000 | (1,432,000)
Description of Location of Interest Rate Derivatives on Balance Sheet | Other assets |  |
Pay Rate (as percent) | 0.00% |  |
Receive Rate | 2.25% minus 1 month LIBOR |  |
Notional | $ 0 | 1,500,000,000 |
Cash Flow Hedges Derivative Instruments at Fair Value, Net | $ 0 | 124,585,000 |
Weighted Average Remaining Maturity Derivative | 0 years |  |
Asset derivatives | Hedging derivative | Fair value hedge | Securities |  |  |
Derivative [Line Items] |  |  |
Description of Location of Interest Rate Derivatives on Balance Sheet | Other assets |  |
Pay Rate (as percent) | 0.59% |  |
Notional | $ 559,820,000 | 231,421,000 |
Weighted Average Remaining Maturity Derivative | 5 years 3 months 18 days |  |
Derivative, Underlying Basis | Federal funds |  |
Fair Value Hedge Assets | $ 15,109,000 | 4,696,000 |
Liability derivatives | Hedging derivative | Cash flow hedge |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) in Accumulated Other Comprehensive Income | $ 0 | 2,447,000 | $ (1,149,000)
Liability derivatives | Hedging derivative | Fair value hedge | Securities |  |  |
Derivative [Line Items] |  |  |
Description of Location of Interest Rate Derivatives on Balance Sheet | Other liabilities |  |
Pay Rate (as percent) | 3.08% |  |
Notional | $ 471,670,000 | 477,510,000 |
Weighted Average Remaining Maturity Derivative | 5 years 10 days |  |
Derivative, Underlying Basis | 3 month LIBOR |  |
Fair Value Hedge Liabilities | $ (39,781,000) | $ (72,010,000) |

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