v3.26.1
SEGMENT INFORMATION - Schedule of Segment Reporting Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jul. 03, 2026
Jun. 27, 2025
Jul. 03, 2026
Jun. 27, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Sales $ 567.8 $ 503.3 $ 1,102.3 $ 985.1  
Cost of sales (274.9) (255.0) (537.1) (493.4)  
Operating expenses (210.7) (189.4) (414.9) (359.0)  
Operating profit 82.2 58.9 150.3 132.7  
Non-operating expense, net:          
Interest (expense) income, net (13.8)   (28.4)    
Other non-operating income (expense), net 0.1 0.0 (0.4) (0.5)  
Earnings before income taxes 68.5 58.9 121.5 132.2  
Depreciation and amortization expenses (30.1) (28.6) (59.7) (55.5)  
Capital expenditures (6.4) (11.6) (15.1) (17.2)  
Assets 3,705.7   3,705.7   $ 3,821.6
Sensors and Safety Systems          
Segment Reporting [Line Items]          
Sales 346.5 310.8 670.8 604.1  
Test and Measurement          
Segment Reporting [Line Items]          
Sales 221.3 192.5 431.5 381.0  
Operating Segments          
Non-operating expense, net:          
Assets 3,387.0   3,387.0   3,455.7
Operating Segments | Sensors and Safety Systems          
Segment Reporting [Line Items]          
Sales 346.5 310.8 670.8 604.1  
Cost of sales (178.3) (165.8) (347.7) (317.2)  
Operating expenses (69.7) (65.5) (135.8) (120.4)  
Operating profit 98.5 79.5 187.3 166.5  
Non-operating expense, net:          
Interest (expense) income, net (0.1)   (0.2)    
Other non-operating income (expense), net 0.0 (0.1) 0.0 (0.3)  
Earnings before income taxes 98.4 79.4 187.1 166.2  
Depreciation and amortization expenses (3.4) (3.5) (6.7) (6.9)  
Capital expenditures (2.9) (4.5) (9.1) (7.2)  
Assets 1,333.0   1,333.0   1,306.4
Operating Segments | Test and Measurement          
Segment Reporting [Line Items]          
Sales 221.3 192.5 431.5 381.0  
Cost of sales (96.6) (89.2) (189.4) (176.2)  
Operating expenses (119.3) (117.6) (240.0) (231.0)  
Operating profit 5.4 (14.3) 2.1 (26.2)  
Non-operating expense, net:          
Interest (expense) income, net 0.5   0.9    
Other non-operating income (expense), net 0.6 0.1 0.6 (0.2)  
Earnings before income taxes 6.5 (14.2) 3.6 (26.4)  
Depreciation and amortization expenses (26.5) (25.1) (52.8) (48.6)  
Capital expenditures (3.5) (7.1) (5.9) (10.0)  
Assets 2,054.0   2,054.0   2,149.3
Unallocated Corporate Costs and Other          
Segment Reporting [Line Items]          
Sales 0.0 0.0 0.0 0.0  
Cost of sales 0.0 0.0 0.0 0.0  
Operating expenses (21.7) (6.3) (39.1) (7.6)  
Operating profit (21.7) (6.3) (39.1) (7.6)  
Non-operating expense, net:          
Interest (expense) income, net (14.2)   (29.1)    
Other non-operating income (expense), net (0.5) 0.0 (1.0) 0.0  
Earnings before income taxes (36.4) (6.3) (69.2) (7.6)  
Depreciation and amortization expenses (0.2) 0.0 (0.2) 0.0  
Capital expenditures 0.0 $ 0.0 (0.1) $ 0.0  
Other          
Non-operating expense, net:          
Assets $ 318.7   $ 318.7   $ 365.9