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Pension and Other Postretirement Benefits - Fair Value Hierarchy - Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 189,535 | $ 294,566 | $ 302,270
Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 68,865 | 118,053 | 133,333
Real estate | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 8,902 | 11,547 | 9,775
Insurance contract | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,963 | 99,527 | 112,920
Other - alternative investments | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 6,979 | 10,638
U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,591 | 77,680 | 73,481
Foreign |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 129,944 | 216,886 | $ 228,789
Fair Value, Recurring |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 189,535 | 294,566 |
Fair Value, Recurring | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 187,693 | 242,694 |
Fair Value, Recurring | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,923 | 1,989 |
Fair Value, Recurring | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 113,905 | 122,652 |
Fair Value, Recurring | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 68,865 | 118,053 |
Fair Value, Recurring | Measured at NAV |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 1,842 | 51,872 |
Fair Value, Recurring | U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,591 | 77,680 |
Fair Value, Recurring | U.S. | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,591 | 77,680 |
Fair Value, Recurring | U.S. | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | U.S. | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 54,596 | 72,721 |
Fair Value, Recurring | U.S. | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,995 | 4,959 |
Fair Value, Recurring | U.S. | Pooled separate accounts | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 54,596 | 72,721 |
Fair Value, Recurring | U.S. | Pooled separate accounts | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | U.S. | Pooled separate accounts | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 54,596 | 72,721 |
Fair Value, Recurring | U.S. | Pooled separate accounts | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | U.S. | Real estate | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,995 | 4,959 |
Fair Value, Recurring | U.S. | Real estate | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | U.S. | Real estate | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | U.S. | Real estate | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,995 | 4,959 |
Fair Value, Recurring | Foreign |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 129,944 | 216,886 |
Fair Value, Recurring | Foreign | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 128,102 | 165,014 |
Fair Value, Recurring | Foreign | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,923 | 1,989 |
Fair Value, Recurring | Foreign | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,309 | 49,931 |
Fair Value, Recurring | Foreign | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 63,870 | 113,094 |
Fair Value, Recurring | Foreign | Real estate | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 3,907 | 6,588 |
Fair Value, Recurring | Foreign | Real estate | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Real estate | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Real estate | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 3,907 | 6,588 |
Fair Value, Recurring | Foreign | Cash and cash equivalents | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,923 | 1,989 |
Fair Value, Recurring | Foreign | Cash and cash equivalents | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 4,923 | 1,989 |
Fair Value, Recurring | Foreign | Cash and cash equivalents | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Cash and cash equivalents | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Insurance contract | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,963 | 99,527 |
Fair Value, Recurring | Foreign | Insurance contract | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Insurance contract | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Insurance contract | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 59,963 | 99,527 |
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 5,211 | 10,999 |
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 5,211 | 10,999 |
Fair Value, Recurring | Foreign | Diversified equity securities - registered investment companies | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 54,098 | 3,593 |
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 54,098 | 3,593 |
Fair Value, Recurring | Foreign | Fixed income – foreign registered investment companies | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | 0 | 0 |
Fair Value, Recurring | Foreign | Fixed income government securities | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 35,339 |
Fair Value, Recurring | Foreign | Fixed income government securities | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0 |
Fair Value, Recurring | Foreign | Fixed income government securities | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 35,339 |
Fair Value, Recurring | Foreign | Fixed income government securities | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0 |
Fair Value, Recurring | Foreign | Other - alternative investments | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 6,979 |
Fair Value, Recurring | Foreign | Other - alternative investments | Level 1 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0 |
Fair Value, Recurring | Foreign | Other - alternative investments | Level 2 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 0 |
Fair Value, Recurring | Foreign | Other - alternative investments | Level 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | 6,979 |
Fair Value, Recurring | Foreign | Commingled funds measured at NAV | Measured at NAV |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets | $ 1,842 | 2,300 |
Fair Value, Recurring | Foreign | Diversified investment fund - registered investment companies measured at NAV | Measured at NAV |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value of plan assets |  | $ 49,572 |

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