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Retirement Plans and Other Post-Retirement Benefits - Other Changes in Plan Assets and Benefit Obligations (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Pension Benefits |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actuarial (gain) loss |  | $ (203) | $ 1,750 |
Recognized prior service costs |  | (48) | (48) |
Amortization of actuarial (gain) loss | $ (790) | (790) | (655) | $ (2,759)
Total recognized in other comprehensive (income) loss |  | (1,041) | 1,047 |
Total recognized in net periodic benefit cost and other comprehensive loss |  | 771 | 2,960 |
Other Benefits |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actuarial (gain) loss |  | 79 | 883 |
Amortization of actuarial (gain) loss | $ (47) | (47) | 834 | $ 892
Total recognized in other comprehensive (income) loss |  | 32 | 1,717 |
Total recognized in net periodic benefit cost and other comprehensive loss |  | $ 2 | $ 609 |

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