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Derivative Instruments and Hedging Activities - Interest Rate Swap Agreements (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Derivative [Line Items] |  |  |
Realized and unrealized gains on non-designated derivative instruments (note 9) | $ 449 | $ 4,817 | $ 467
Interest Rate Swap [Member] | realized gain (loss) on Derivative Instrument Termintation |  |  |
Derivative [Line Items] |  |  |
Realized and unrealized gains on non-designated derivative instruments (note 9) | $ 3,215 | $ 0 | $ 0

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