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Employee and Retiree Benefit Plans - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) investment | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Future annual rate of increase in cost of health care to measure postretirement benefit obligations | 7.40% |  |
Ultimate rate of health care cost | 4.00% |  |
Weighted average expected return on plan asset | 7.40% |  |
Basis used to determine expected return on plan asset, average expected investment expenses | 0.80% |  |
Perentage return on plan assets over the last ten years | 3.00% |  |
Number of investments in hedge funds and other alternative investments (in investments) | investment | 2 |  |
Defined benefit plan, percentage of employer's matching contribution | 6.00% |  |
Thrift plan expense | $ 8,500 | $ 6,000 | $ 5,400
Equity securities |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Weighted average expected return on plan asset | 8.40% |  |
Equity securities | Minimum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 40.00% |  |
Equity securities | Maximum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 75.00% |  |
Fixed income securities |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Weighted average expected return on plan asset | 4.70% |  |
Fixed income securities | Minimum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 20.00% |  |
Fixed income securities | Maximum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 60.00% |  |
Other | Minimum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 0.00% |  |
Other | Maximum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 15.00% |  |
Cash equivalents | Minimum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 0.00% |  |
Cash equivalents | Maximum | Domestic Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Target allocations of plan assets | 20.00% |  |
Pension Benefits |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Cash balance interest accumulation rate | 1.89% |  |
Contributions to benefit plans | $ 37,546 | $ 41,145 |
Weighted average expected return on plan asset | 7.35% | 6.24% |
Pension Benefits | U.S. |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Contributions to benefit plans | $ 34,700 |  |
Contributions to benefit plans, next fiscal year | 35,800 |  |
Pension Benefits | Foreign Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Contributions to benefit plans, next fiscal year | 2,200 |  |
Other Postretirement Benefits |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Contributions to benefit plans | $ 2,042 | $ 2,080 |
Weighted average expected return on plan asset | 0.00% | 0.00% |
Other Postretirement Benefits | U.S. |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Contributions to benefit plans | $ 2,000 |  |
Contributions to benefit plans, next fiscal year | $ 4,400 |  |
Second investment |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Domestic plan, investment notice period | 90 days |  |
Third investment |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Domestic plan, investment notice period | 95 days |  |
Domestic plan, investment lock up period | 3 years |  |

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- Definition Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (l) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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