v3.26.1
Segment Information (Details)
$ in Millions
 3 Months Ended
Apr. 01, 2026
segment
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Segment Information      
Non-disclosure of reportable segments   true  
Number of new segments due to split of operating segment | segment 2    
Net sales   $ 874.1 $ 682.8
Cost of sales   692.1 517.4
Gross profit   182.0 165.4
Selling, general and administrative expenses   103.3 84.9
Restructuring expenses   3.9 4.8
Operating income   74.8 75.7
Data Centers      
Segment Information      
Net sales   348.4 183.6
Commercial HVAC      
Segment Information      
Net sales   247.9 213.7
Performance Technologies      
Segment Information      
Net sales   277.8 285.5
Operating segments      
Segment Information      
Net sales   888.0 683.4
Operating segments | Data Centers      
Segment Information      
Net sales   348.6 183.7
Cost of sales   278.3 129.0
Gross profit   70.3 54.7
Selling, general and administrative expenses   24.0 19.8
Restructuring expenses     0.2
Operating income   46.3 34.7
Operating segments | Commercial HVAC      
Segment Information      
Net sales   261.6 214.2
Cost of sales   197.7 156.0
Gross profit   63.9 58.2
Selling, general and administrative expenses   30.3 24.9
Restructuring expenses   2.2 1.1
Operating income   31.4 32.2
Operating segments | Performance Technologies      
Segment Information      
Net sales   277.8 285.5
Cost of sales   229.0 233.6
Gross profit   48.8 51.9
Selling, general and administrative expenses   19.5 21.9
Restructuring expenses   1.7 3.5
Operating income   27.6 26.5
Inter-segment Sales      
Segment Information      
Net sales   13.9 0.6
Inter-segment Sales | Data Centers      
Segment Information      
Net sales   0.2 0.1
Inter-segment Sales | Commercial HVAC      
Segment Information      
Net sales   13.7 0.5
Corporate and eliminations      
Segment Information      
Net sales   (13.9) (0.6)
Cost of sales   (12.9) (1.2)
Gross profit   (1.0) 0.6
Selling, general and administrative expenses   29.5 18.3
Operating income   $ (30.5) $ (17.7)