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SEGMENT AND GEOGRAPHIC INFORMATION - Schedule of Revenue and Other Financial Information by Reportable Segment (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 28, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 28, 2024 USD ($) segment | Sep. 30, 2023 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | segment |  |  | 3 |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 1,009,763 | $ 1,026,623 | $ 3,047,440 | $ 3,115,933
Cost of revenue (excluding amortization of intangible assets) | 660,742 | 664,783 | 1,999,863 | 1,977,462
Selling, general and administrative | 199,213 | 176,109 | 555,295 | 550,713
Amortization of intangible assets | 32,403 | 34,229 | 97,248 | 103,419
Operating income | 117,405 | 151,502 | 395,034 | 484,339
Capital Expenditures | 38,721 | 65,947 | 157,351 | 240,205
Depreciation and amortization | 88,198 | 78,870 | 259,637 | 233,610
Unallocated corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Selling, general and administrative | 76,763 | 49,918 | 196,357 | 165,886
Operating income | (76,763) | (49,918) | (196,357) | (165,886)
Capital Expenditures | 27 | 439 | 1,452 | 2,010
Depreciation and amortization | 1,760 | 840 | 5,142 | 2,961
RMS |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 197,824 | 186,848 | 625,120 | 596,562
RMS | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 197,824 | 186,848 | 625,120 | 596,562
Cost of revenue (excluding amortization of intangible assets) | 137,906 | 126,640 | 421,773 | 381,332
Selling, general and administrative | 26,453 | 26,483 | 84,943 | 81,194
Amortization of intangible assets | 5,921 | 5,399 | 17,763 | 16,383
Operating income | 27,544 | 28,326 | 100,641 | 117,653
Capital Expenditures | 7,186 | 9,192 | 36,543 | 35,769
Depreciation and amortization | 18,389 | 13,872 | 53,050 | 41,310
DSA |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 615,060 | 664,028 | 1,847,931 | 1,989,838
DSA | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 615,060 | 664,028 | 1,847,931 | 1,989,838
Cost of revenue (excluding amortization of intangible assets) | 409,684 | 436,174 | 1,246,560 | 1,268,248
Selling, general and administrative | 63,260 | 63,369 | 174,598 | 189,076
Amortization of intangible assets | 15,680 | 17,666 | 47,122 | 52,726
Operating income | 126,436 | 146,819 | 379,651 | 479,788
Capital Expenditures | 22,773 | 41,967 | 91,176 | 155,477
Depreciation and amortization | 47,751 | 44,088 | 141,269 | 129,662
Manufacturing |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 196,879 | 175,747 | 574,389 | 529,533
Manufacturing | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 196,879 | 175,747 | 574,389 | 529,533
Cost of revenue (excluding amortization of intangible assets) | 113,152 | 101,968 | 331,530 | 327,882
Selling, general and administrative | 32,737 | 36,338 | 99,397 | 114,556
Amortization of intangible assets | 10,802 | 11,166 | 32,363 | 34,311
Operating income | 40,188 | 26,275 | 111,099 | 52,784
Capital Expenditures | 8,735 | 14,349 | 28,180 | 46,949
Depreciation and amortization | $ 20,298 | $ 20,070 | $ 60,176 | $ 59,677

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