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Derivatives and Hedging Activities - Interest Rate Swaps and Interest Rate Caps Outstanding (Details) - USD ($) $ in Millions | Mar. 31, 2022 | Dec. 31, 2021
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Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | $ 67.2 | $ 23.6
Derivative liability, notional amount | (47.0) | (58.2)
Derivative notional amount | 1,529.8 | 1,533.6
Pay-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 435.0 | 435.0
Pay-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 330.0 | 330.0
Pay-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 435.0 | 435.0
Interest rate cap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 164.9 | 166.8
Interest rate cap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 164.9 | 166.8
Pay-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 165.0 | 165.0
Pay-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 120.0 | 120.0
Pay-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative asset, notional amount | 150.0 | 150.0
Receive-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative liability, notional amount | (165.0) | (165.0)
Receive-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative liability, notional amount | (120.0) | (120.0)
Receive-fixed swap |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |
Derivative liability, notional amount | $ (150.0) | $ (150.0)

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