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Employee Benefit Plans (Fair Value of Plan Assets) (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | $ 161,823 | $ 197,747 | $ 182,088 | $ 174,173
Mutual Funds [Member] | Level 1 [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 154,391 | 195,452 |  |
Cash and Cash Equivalents [Member] | Level 1 [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | $ 7,432 | $ 2,295 |  |

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