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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
Schedule of Provision for Income Taxes | Income tax provision (benefit) for the years ended December 31, consists of the following (in thousands):
| 2024 |  | 2023 |  | 2022
Current: |  |  |  |  |
Federal | $ | 66,505 |  |  | $ | 125,875 |  |  | $ | 139,423 |
State | 8,368 |  |  | 22,340 |  |  | 20,367 |
Foreign | 23,366 |  |  | 53,674 |  |  | 48,165 |
| 98,239 |  |  | 201,889 |  |  | 207,955 |
Deferred: |  |  |  |  |
Federal | (27,938) |  |  | (18,781) |  |  | (12,313) |
State | 7,511 |  |  | (6,209) |  |  | (7,761) |
Foreign | (5,849) |  |  | (5,069) |  |  | 4,138 |
| (26,276) |  |  | (30,059) |  |  | (15,936) |
| $ | 71,963 |  |  | $ | 171,830 |  |  | $ | 192,019 |
Schedule of Components of Income Before Taxes | The components of Income before income taxes for the years ended December 31, were as follows (in thousands):
| 2024 |  | 2023 |  | 2022
Domestic | $ | 369,870 |  |  | $ | 614,713 |  |  | $ | 750,793 |
Foreign | 147,268 |  |  | 252,163 |  |  | 180,440 |
| $ | 517,138 |  |  | $ | 866,876 |  |  | $ | 931,233 |
Schedule of Provision for Income Tax Rate to Statutory Rate Reconciliation | Income tax provision differs from the amount that would be provided by applying the statutory U.S. corporate income tax rate for the years ended December 31, due to the following items (in thousands):
| 2024 |  | 2023 |  | 2022
Provision at statutory rate | $ | 108,599 |  |  | $ | 182,044 |  |  | $ | 195,553 |
State taxes, net of federal benefit | 10,003 |  |  | 21,659 |  |  | 19,223 |
Foreign rate differential | 2,196 |  |  | 7,887 |  |  | 3,620 |
Foreign derived intangible income | (1,744) |  |  | (8,669) |  |  | (8,187) |
Research and development credit | (20,706) |  |  | (23,130) |  |  | (18,809) |
Unrecognized tax benefits including interest and penalties | (2,026) |  |  | (9,210) |  |  | (11,793) |
Valuation allowance adjustments | 10,797 |  |  | 7,345 |  |  | 6,714 |
State credits | (4,526) |  |  | (8,035) |  |  | (6,954) |
Global intangible low-taxed income | 2,605 |  |  | 474 |  |  | 1,607 |
Return to provision adjustments | (5,421) |  |  | 1,057 |  |  | (6,318) |
Executive compensation limitation | 5,404 |  |  | 8,712 |  |  | 4,893 |
Other foreign inclusions | (13,601) |  |  | 1,563 |  |  | 16,562 |
Tax incentives | (16,476) |  |  | (12,996) |  |  | (7,202) |
Other | (3,141) |  |  | 3,129 |  |  | 3,110 |
Income tax provision | $ | 71,963 |  |  | $ | 171,830 |  |  | $ | 192,019 |
Schedule of Principal Components of the Company's Deferred Tax Assets and Liabilities | The principal components of the Company’s deferred income tax assets and liabilities as of December 31, include the following (in thousands):
| 2024 |  | 2023
Deferred income tax assets: |  |  |
Accruals not yet tax deductible | $ | 144,331 |  |  | $ | 152,288 |
Stock compensation | 11,779 |  |  | 12,995 |
Net operating loss and research & development tax credit carryforwards | 82,027 |  |  | 68,809 |
Amortization of research and experimental costs | 100,880 |  |  | 78,169 |
Other | 62,889 |  |  | 66,749 |
| 401,906 |  |  | 379,010 |
Valuation allowance | (59,313) |  |  | (48,516) |
| 342,593 |  |  | 330,494 |
Deferred income tax liabilities: |  |  |
Depreciation, tax in excess of book | (51,107) |  |  | (57,641) |
Pension and postretirement healthcare plan obligations | (90,589) |  |  | (82,682) |
Withholding tax | (15,915) |  |  | (29,904) |
Other | (26,045) |  |  | (32,597) |
| (183,656) |  |  | (202,824) |
| $ | 158,937 |  |  | $ | 127,670 |
Schedule of Gross Operating Loss Carryforwards | The Company's gross state net operating loss carryforwards were as follows at December 31 (in thousands):
Year of Expiration |  | 2024 |  | 2023
2031 |  | $ | 238,682 |  |  | $ | 238,682 |
2032 |  | 12 |  |  | 12 |
2033 |  | 46 |  |  | 46 |
2034 |  | 108 |  |  | 108 |
2035 |  | 1,085 |  |  | 1,085 |
2036 |  | 60 |  |  | 60 |
2037 |  | 187 |  |  | 187 |
2038 |  | 824 |  |  | 824 |
2039 |  | 11,285 |  |  | 11,285 |
2040 |  | 34,354 |  |  | 34,354 |
2041 |  | 2,135 |  |  | 2,135 |
2042 |  | 347 |  |  | 347 |
Indefinite |  | 7,280 |  |  | 7,280 |
|  | $ | 296,405 |  |  | $ | 296,405 |
Schedule of Changes in Gross Liability for Unrecognized Tax Benefits Excluding Interest and Penalties | The Company recognizes interest and penalties related to unrecognized tax benefits in Income tax provision (benefit). Changes in the Company’s gross liability for unrecognized tax benefits, excluding interest and penalties, were as follows (in thousands):
| 2024 |  | 2023
Unrecognized tax benefits, beginning of period | $ | 18,214 |  |  | $ | 32,029 |
Increase in unrecognized tax benefits for tax positions taken in a prior period | 3,818 |  |  | 3,159 |
Decrease in unrecognized tax benefits for tax positions taken in a prior period | (3,773) |  |  | (10,444) |
Increase in unrecognized tax benefits for tax positions taken in the current period | 2,473 |  |  | 870 |
Statute lapses | (3,800) |  |  | — |
Settlements with taxing authorities | (753) |  |  | (7,400) |
Unrecognized tax benefits, end of period | $ | 16,179 |  |  | $ | 18,214 |

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