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Derivative Financial Instruments - Additional Information (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 USD ($) numberOfCounterparties | Dec. 31, 2020 USD ($)
Derivative [Line Items] |  |
Number of central counterparties | numberOfCounterparties | 2 |
Notional derivative contracts | $ 6,589,856 | $ 8,557,883
Net positive exposure | 9,000 | 43,000
Estimated reclassification of AOCI to interest expense | 13,000 |
Cash collateral pledged | 10,000 | 43,000
CME |  |
Derivative [Line Items] |  |
Notional derivative contracts | $ 5,200,000 |
Notional derivative contracts, percent | 94.40% |
Amount of variation margin included as settlement | $ (72,000) |
LCH |  |
Derivative [Line Items] |  |
Notional derivative contracts | $ 300,000 |
Notional derivative contracts, percent | 5.60% |
Amount of variation margin included as settlement | $ 8,000 |
Interest rate swaps |  |
Derivative [Line Items] |  |
Notional derivative contracts | $ 5,536,096 | $ 8,557,883

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