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Derivative Instruments and Hedging Activities - Summary of Offsetting of Financial Liabilities and Derivative Liabilities (Detail) - Interest Rate Contract - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Offsetting Liabilities [Line Items]    
Gross Amount of Recognized  Liabilities $ 97,641 $ 45,727
Financial Instruments 0 0
Cash Collateral Received/(Posted) (97,641) (45,727)
Net Amount $ 0 $ 0