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v3.24.0.1

Segment information - Operations by Segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Customer revenue | $ 1,725.1 | $ 1,699.9 | $ 1,745.8
Gross profit | 551.3 | 529.6 | 572.0
Total assets | 1,965.4 | 2,065.6 | 2,419.5
DWS |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 546.1 | 509.9 | 574.5
CA&I |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 531.0 | 520.3 | 485.6
ECS |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 648.0 | 669.7 | 685.7
Intersegment Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 0.0 | 0.0 | (1.4)
Intersegment Eliminations | DWS |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 0.0 | 0.0 | 0.0
Intersegment Eliminations | CA&I |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 0.0 | 0.0 | 0.0
Intersegment Eliminations | ECS |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 0.0 | 0.0 | (1.4)
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 1,725.1 | 1,699.9 | 1,747.2
Gross profit | 554.7 | 550.8 | 562.3
Depreciation and amortization | 121.8 | 159.2 | 129.1
Total assets | 1,196.6 | 1,190.6 | 1,237.2
Capital expenditures | 65.9 | 68.4 | 78.9
Operating Segments | DWS |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 546.1 | 509.9 | 574.5
Gross profit | 76.2 | 71.5 | 79.3
Depreciation and amortization | 29.2 | 38.9 | 18.6
Total assets | 379.2 | 346.5 | 353.5
Capital expenditures | 3.9 | 6.3 | 13.5
Operating Segments | CA&I |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 531.0 | 520.3 | 485.6
Gross profit | 81.9 | 47.3 | 47.2
Depreciation and amortization | 29.8 | 42.3 | 55.0
Total assets | 249.6 | 268.3 | 289.6
Capital expenditures | 7.1 | 6.5 | 13.2
Operating Segments | ECS |  |  |
Segment Reporting Information [Line Items] |  |  |
Customer revenue | 648.0 | 669.7 | 687.1
Gross profit | 396.6 | 432.0 | 435.8
Depreciation and amortization | 62.8 | 78.0 | 55.5
Total assets | 567.8 | 575.8 | 594.1
Capital expenditures | $ 54.9 | $ 55.6 | $ 52.2

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