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SEGMENT INFORMATION - Financial Information of Reportable Segments (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Financial information for the reportable segments |  |  |
Number of operating segments (segments) | segment | 3 |  |
Net sales (Note 2) | $ 4,008,670 | $ 4,191,636 | $ 3,761,211
Cost of goods sold | 2,535,758 | 2,726,191 | 2,480,451
Gross profit | 1,472,912 | 1,465,445 | 1,280,760
Other segment expenses | 835,977 | 734,208 | 658,433
EBIT | 636,935 | 731,237 | 622,327
Special items charge (gain) | 76,670 | 137 | 14,624
Adjusted EBIT | 713,605 | 731,374 | 636,951
Special items charge (gain) | (76,670) | (137) | (14,624)
Interest income | 10,130 | 6,762 | 1,607
Interest expense | (52,916) | (51,133) | (31,107)
Income before income taxes | 594,149 | 686,866 | 592,827
Total assets | 3,520,142 | 3,377,297 | 3,180,546
Capital expenditures | 116,603 | 90,987 | 71,883
Depreciation and amortization | 88,238 | 86,670 | 78,059
Rationalization and asset impairment net charges (Note 7) | 55,860 | (11,314) | 11,788
Pension settlement net charges | 3,792 | 0 | 0
Acquisition costs | 7,042 | 0 | 6,003
Inter-segment |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | (183,940) | (169,675) | (164,562)
Corporate/Eliminations |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | (183,940) | (169,675) | (164,562)
Cost of goods sold | (181,530) | (168,389) | (163,664)
Gross profit | (2,410) | (1,286) | (898)
Other segment expenses | 15,765 | 16,250 | 15,138
EBIT | (18,175) | (17,536) | (16,036)
Special items charge (gain) | 7,147 |  | 6,003
Adjusted EBIT | (11,028) | (17,536) | (10,033)
Special items charge (gain) | (7,147) |  | (6,003)
Total assets | (293,241) | (375,272) | (299,077)
Capital expenditures | 117 | 117 |
Depreciation and amortization | (604) | (785) |
Acquisition costs | 7,042 |  | 6,003
Americas Welding |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 2,564,847 | 2,655,546 | 2,288,934
Rationalization and asset impairment net charges (Note 7) | 18,840 | 468 | (431)
Pension settlement net charges | 4,205 |  | (3,735)
Business combination, inventory step up | 4,776 | 9,390 | 1,106
Americas Welding | Operating Segments |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 2,700,605 | 2,783,082 | 2,410,953
Cost of goods sold | 1,638,568 | 1,739,850 | 1,514,203
Gross profit | 1,062,037 | 1,043,232 | 896,750
Other segment expenses | 559,670 | 514,821 | 430,871
EBIT | 502,367 | 528,411 | 465,879
Special items charge (gain) | 27,821 | 9,858 | (3,060)
Adjusted EBIT | 530,188 | 538,269 | 462,819
Special items charge (gain) | (27,821) | (9,858) | 3,060
Total assets | 2,416,411 | 2,365,737 | 2,122,729
Capital expenditures | 94,528 | 61,752 | 43,003
Depreciation and amortization | 57,016 | 55,821 | 47,291
Americas Welding | Inter-segment |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 135,758 | 127,536 | 122,019
International Welding |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 933,722 | 1,040,006 | 954,281
Rationalization and asset impairment net charges (Note 7) | 32,960 | (11,782) | 11,681
Pension settlement net charges | (413) | 845 |
Business combination, inventory step up | 250 | 2,862 |
Gain (loss) on disposition of assets | (4,950) | 1,646 |
International Welding | Operating Segments |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 969,583 | 1,071,504 | 985,784
Cost of goods sold | 700,428 | 776,982 | 719,051
Gross profit | 269,155 | 294,522 | 266,733
Other segment expenses | 200,785 | 148,304 | 158,257
EBIT | 68,370 | 146,218 | 108,476
Special items charge (gain) | 37,747 | (9,721) | 11,681
Adjusted EBIT | 106,117 | 136,497 | 120,157
Special items charge (gain) | (37,747) | 9,721 | (11,681)
Total assets | 1,050,327 | 1,046,369 | 994,905
Capital expenditures | 17,814 | 20,568 | 17,955
Depreciation and amortization | 21,735 | 22,023 | 20,949
International Welding | Inter-segment |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 35,861 | 31,498 | 31,503
The Harris Products Group |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 510,101 | 496,084 | 517,996
Rationalization and asset impairment net charges (Note 7) | 3,955 |  |
The Harris Products Group | Operating Segments |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | 522,422 | 506,725 | 529,036
Cost of goods sold | 378,292 | 377,748 | 410,861
Gross profit | 144,130 | 128,977 | 118,175
Other segment expenses | 59,757 | 54,833 | 54,167
EBIT | 84,373 | 74,144 | 64,008
Special items charge (gain) | 3,955 |  |
Adjusted EBIT | 88,328 | 74,144 | 64,008
Special items charge (gain) | (3,955) |  |
Total assets | 346,645 | 340,463 | 361,989
Capital expenditures | 4,144 | 8,550 | 10,925
Depreciation and amortization | 10,091 | 9,611 | 9,819
The Harris Products Group | Inter-segment |  |  |
Financial information for the reportable segments |  |  |
Net sales (Note 2) | $ 12,321 | $ 10,641 | $ 11,040

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