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Postretirement Benefit Plans - Company's Asset Allocations for its U.S. Pension Plans by Asset Category (Detail) - United States [Member] - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | $ 136,744 | $ 178,574 | $ 175,336
Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 72,195 | 93,821 |
Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 64,549 | 84,753 |
Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 7,531 | 10,918 |
Cash and Cash Equivalents [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 7,531 | 10,918 |
Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 49,037 | 62,831 |
Equity Securities [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 49,037 | 62,831 |
U.S. Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 21,279 | 25,083 |
U.S. Equities [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 21,279 | 25,083 |
Non-U.S. Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 9,788 | 12,544 |
Non-U.S. Equities [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 9,788 | 12,544 |
Employer Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 17,970 | 25,204 |
Employer Securities [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 17,970 | 25,204 |
Fixed Income Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 80,176 | 104,825 |
Fixed Income Securities [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 15,627 | 20,072 |
Fixed Income Securities [Member] | Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 64,549 | 84,753 |
U.S. Corporate Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 51,444 | 69,073 |
U.S. Corporate Bonds [Member] | Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 51,444 | 69,073 |
U.S. Government and Agency Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 18,255 | 22,917 |
U.S. Government and Agency Bonds [Member] | Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 15,627 | 20,072 |
U.S. Government and Agency Bonds [Member] | Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 2,628 | 2,845 |
Other Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | 10,477 | 12,835 |
Other Bonds [Member] | Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total | $ 10,477 | $ 12,835 |

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