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SEGMENT AND GEOGRAPHIC INFORMATION - Schedule of Revenue and Other Financial Information by Reportable Segment (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 29, 2024 USD ($) | Jul. 01, 2023 USD ($) | Jun. 29, 2024 USD ($) segment | Jul. 01, 2023 USD ($)
Segment Reporting [Abstract] |  |  |  |
Number of reportable segments | segment |  |  | 3 |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 1,026,117 | $ 1,059,937 | $ 2,037,677 | $ 2,089,310
Cost of revenue (excluding amortization of intangible assets) | 672,404 | 660,960 | 1,339,121 | 1,312,679
Selling, general and administrative | 169,791 | 199,758 | 356,082 | 374,604
Amortization of intangible assets | 32,270 | 34,274 | 64,845 | 69,190
Operating income | 151,652 | 164,945 | 277,629 | 332,837
Capital Expenditures | 39,486 | 67,383 | 118,630 | 174,258
Depreciation and amortization | 86,082 | 77,671 | 171,439 | 154,740
Unallocated corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Selling, general and administrative | 53,902 | 69,914 | 119,594 | 115,968
Operating income | (53,902) | (69,914) | (119,594) | (115,968)
Capital Expenditures | 146 | 702 | 1,425 | 1,571
Depreciation and amortization | 1,742 | 1,075 | 3,382 | 2,121
RMS |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 206,389 | 209,948 | 427,296 | 409,714
RMS | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 206,389 | 209,948 | 427,296 | 409,714
Cost of revenue (excluding amortization of intangible assets) | 142,942 | 127,888 | 283,867 | 254,692
Selling, general and administrative | 27,597 | 27,653 | 58,490 | 54,711
Amortization of intangible assets | 5,902 | 5,489 | 11,842 | 10,984
Operating income | 29,948 | 48,918 | 73,097 | 89,327
Capital Expenditures | 9,313 | 7,493 | 29,357 | 26,577
Depreciation and amortization | 16,538 | 13,949 | 34,661 | 27,438
DSA |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 627,419 | 663,457 | 1,232,871 | 1,325,810
DSA | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 627,419 | 663,457 | 1,232,871 | 1,325,810
Cost of revenue (excluding amortization of intangible assets) | 418,964 | 420,551 | 836,876 | 832,074
Selling, general and administrative | 54,479 | 63,709 | 111,338 | 125,707
Amortization of intangible assets | 15,600 | 17,659 | 31,442 | 35,060
Operating income | 138,376 | 161,538 | 253,215 | 332,969
Capital Expenditures | 19,444 | 48,326 | 68,403 | 113,510
Depreciation and amortization | 47,729 | 43,124 | 93,518 | 85,574
Manufacturing |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 192,309 | 186,532 | 377,510 | 353,786
Manufacturing | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 192,309 | 186,532 | 377,510 | 353,786
Cost of revenue (excluding amortization of intangible assets) | 110,498 | 112,522 | 218,378 | 225,914
Selling, general and administrative | 33,813 | 38,481 | 66,660 | 78,218
Amortization of intangible assets | 10,768 | 11,126 | 21,561 | 23,145
Operating income | 37,230 | 24,403 | 70,911 | 26,509
Capital Expenditures | 10,583 | 10,862 | 19,445 | 32,600
Depreciation and amortization | $ 20,073 | $ 19,523 | $ 39,878 | $ 39,607

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