v3.26.1
Segment Information - Segment Revenues, Depreciation and Amortization, and Operating (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 28, 2026
Jun. 29, 2025
Dec. 28, 2025
Segment Reporting [Line Items]          
Total revenues $ 458.8 $ 351.5 $ 829.8 $ 654.1  
Total cost of sales 358.7 277.7 640.1 506.7  
Selling, general and administrative expenses 87.3 59.9 159.6 116.9  
Research and development expenses 13.6 10.2 24.3 20.2  
Operating income (loss) (1.6) 3.7 3.1 10.3  
Merger and acquisition related expenses (0.8) 0.0 (2.7) 0.0  
Interest income (expense), net 10.2 (1.2) 14.7 (2.1)  
Other income (expense), net (1.6) 2.1 (1.0) 1.8  
Income before income taxes 7.0 4.6 16.8 10.0  
Total capital expenditures 17.2 20.5 37.1 43.1  
Depreciation and amortization 22.1 11.8 38.9 22.2  
Total assets 4,089.8   4,089.8   $ 2,467.2
Operating segments          
Segment Reporting [Line Items]          
Total revenues 458.8 351.5 829.8 654.1  
Total cost of sales 358.7 277.7 640.1 506.7  
Selling, general and administrative expenses 71.0 51.3 128.3 99.6  
Research and development expenses 13.6 10.2 24.3 20.2  
Operating income (loss) 15.5 12.3 37.1 27.6  
Total capital expenditures 17.1 20.4 36.3 43.0  
Total assets 2,708.3   2,708.3   1,911.6
Unallocated amounts          
Segment Reporting [Line Items]          
Merger and acquisition related expenses (0.8) 0.0 (2.7) 0.0  
Stock compensation expense (16.3) (8.6) (31.3) (17.3)  
Interest income (expense), net 10.2 (1.2) 14.7 (2.1)  
Other income (expense), net (1.6) 2.1 (1.0) 1.8  
Income before income taxes 7.0 4.6 16.8 10.0  
Corporate capital expenditures          
Segment Reporting [Line Items]          
Total capital expenditures 0.1 0.1 0.8 0.1  
Total assets 1,381.5   1,381.5   555.6
Service revenues          
Segment Reporting [Line Items]          
Total revenues 169.7 134.9 303.7 237.3  
Total cost of sales 131.6 107.2 230.9 182.9  
Service revenues | Operating segments          
Segment Reporting [Line Items]          
Total revenues 169.7 134.9 303.7 237.3  
Total cost of sales 131.6 107.2 230.9 182.9  
Product sales          
Segment Reporting [Line Items]          
Total revenues 289.1 216.6 526.1 416.8  
Total cost of sales 227.1 170.5 409.2 323.8  
Product sales | Operating segments          
Segment Reporting [Line Items]          
Total revenues 289.1 216.6 526.1 416.8  
Total cost of sales 227.1 170.5 409.2 323.8  
KGS          
Segment Reporting [Line Items]          
Total revenues 379.7 278.3 668.1 517.8  
KGS | Operating segments          
Segment Reporting [Line Items]          
Total revenues 379.7 278.3 668.1 517.8  
Total cost of sales 292.8 216.1 505.7 392.0  
Selling, general and administrative expenses 59.9 40.0 105.2 77.0  
Research and development expenses 12.7 9.6 22.6 19.2  
Operating income (loss) 14.3 12.6 34.6 29.6  
Total capital expenditures 12.9 12.6 25.4 26.2  
Depreciation and amortization 18.2 8.2 31.2 15.3  
Total assets 2,256.8   2,256.8   1,472.9
KGS | Service revenues | Operating segments          
Segment Reporting [Line Items]          
Total revenues 167.2 133.0 298.5 233.7  
Total cost of sales 129.7 105.4 226.9 179.9  
KGS | Product sales | Operating segments          
Segment Reporting [Line Items]          
Total revenues 212.5 145.3 369.6 284.1  
Total cost of sales 163.1 110.7 278.8 212.1  
US | Operating segments          
Segment Reporting [Line Items]          
Total revenues 79.1 73.2 161.7 136.3  
Total cost of sales 65.9 61.6 134.4 114.7  
Selling, general and administrative expenses 11.1 11.3 23.1 22.6  
Research and development expenses 0.9 0.6 1.7 1.0  
Operating income (loss) 1.2 (0.3) 2.5 (2.0)  
Total capital expenditures 4.2 7.8 10.9 16.8  
Depreciation and amortization 3.9 3.6 7.7 6.9  
Total assets 451.5   451.5   $ 438.7
US | Service revenues | Operating segments          
Segment Reporting [Line Items]          
Total revenues 2.5 1.9 5.2 3.6  
Total cost of sales 1.9 1.8 4.0 3.0  
US | Product sales | Operating segments          
Segment Reporting [Line Items]          
Total revenues 76.6 71.3 156.5 132.7  
Total cost of sales $ 64.0 $ 59.8 $ 130.4 $ 111.7