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Derivative Instruments and Hedging Activities - Summary of Offsetting of Financial Assets and Derivative Assets (Detail) - Interest Rate Contract - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Offsetting Assets [Line Items] |  |
Gross Amounts Recognized on the Consolidated Balance Sheets | $ 0 | $ 199
Gross amounts not offset in the consolidated balance sheet, Financial instruments | 0 | 0
Gross amounts not offset in the consolidated balance sheet, Cash collateral received | 0 | 0
Gross amounts not offset in the consolidated balance sheet, Net amount | $ 0 | $ 199

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