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Segment Information - Reconciliation of Adjusted EBIT to Income before Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting [Abstract] |  |  |  |
Total adjusted EBIT | $ 192,971 | $ 165,364 | $ 351,241 | $ 300,844
Less: |  |  |  |
Acquired intangible asset amortization expense | 15,946 | 12,356 | 31,359 | 25,637
Other pension (income) for U.S. pension plans | (925) | (1,211) | (1,850) | (2,422)
Equity in earnings of affiliates, net of tax | 555 | 0 | 1,717 | 0
Rationalization charges | 9,864 | 6,859 | 20,823 | 18,550
Costs attributed to announced acquisitions | 0 | 5,507 | 1,117 | 5,507
Income before interest and income taxes | 167,531 | 141,853 | 298,075 | 253,572
Interest and other debt expense | 48,699 | 41,343 | 91,627 | 79,990
Income before income taxes | $ 118,832 | $ 100,510 | $ 206,448 | $ 173,582

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