v3.26.1
Acquisitions (Narrative) (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Feb. 28, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Finite-Lived Intangible Assets [Line Items]              
Payments to acquire business, net           $ 64.8 $ (0.8)
Operating ROU Assets   $ 46.4   $ 49.0   49.0  
Goodwill   217.8   259.2   259.2  
Net sales       472.0 $ 424.6 881.9 807.3
Operating income, losses       133.8 $ 123.2 228.0 $ 221.7
Geometrik [Member]              
Finite-Lived Intangible Assets [Line Items]              
Payments to acquire business     $ 7.7        
Acquisition-related contingent consideration     0.3        
Business acquisition, total fair value of liabilities assumed, less tangible assets acquired     1.4        
Business acquisition, accounts receivable     0.5        
Business acquisition, inventory     0.5        
Business acquisition, property, plant and equipment     1.6        
Operating ROU Assets     3.8        
Operating lease liability     3.8        
Business acquisition, accounts payable and accrued liabilities     1.3        
Fair value of identifiable intangible assets acquired     1.4        
Goodwill     5.2        
Geometrik [Member] | Trade Names [Member]              
Finite-Lived Intangible Assets [Line Items]              
Fair value of identifiable intangible assets acquired     $ 0.9        
Estimated Useful Life     15 years        
Geometrik [Member] | Backlog [Member]              
Finite-Lived Intangible Assets [Line Items]              
Fair value of identifiable intangible assets acquired     $ 0.3        
Estimated Useful Life     1 year        
Geometrik [Member] | Maximum [Member]              
Finite-Lived Intangible Assets [Line Items]              
Acquisition-related contingent consideration     $ 1.5        
Eventscape [Member]              
Finite-Lived Intangible Assets [Line Items]              
Acquisition-related contingent consideration $ 0.4            
Business acquisition, cash acquired 1.3            
Payments to acquire business, net 64.6            
Business acquisition, total fair value of liabilities assumed, less tangible assets acquired 3.2            
Business acquisition, accounts receivable 12.5            
Operating ROU Assets 5.5            
Operating lease liability 5.5            
Business acquisition, accounts payable and accrued liabilities 11.1            
Fair value of identifiable intangible assets acquired 16.5            
Goodwill 45.3            
Eventscape [Member] | Trade Names [Member]              
Finite-Lived Intangible Assets [Line Items]              
Fair value of identifiable intangible assets acquired $ 10.4            
Estimated Useful Life 15 years            
Eventscape [Member] | Customer Relationships [Member]              
Finite-Lived Intangible Assets [Line Items]              
Fair value of identifiable intangible assets acquired $ 5.6            
Estimated Useful Life 6 years            
Eventscape [Member] | Maximum [Member]              
Finite-Lived Intangible Assets [Line Items]              
Acquisition-related contingent consideration $ 7.5            
Parallel [Member]              
Finite-Lived Intangible Assets [Line Items]              
Business acquisition, cash acquired   0.6          
Payments to acquire business, net   7.2          
Business acquisition, total fair value of liabilities assumed, less tangible assets acquired   2.6          
Business acquisition, inventory   1.3          
Business acquisition, property, plant and equipment   1.8          
Operating ROU Assets   1.1          
Operating lease liability   1.1          
Fair value of identifiable intangible assets acquired   2.1          
Goodwill   2.5          
Parallel [Member] | Trade Names [Member]              
Finite-Lived Intangible Assets [Line Items]              
Fair value of identifiable intangible assets acquired   $ 0.9          
Estimated Useful Life   15 years          
Parallel [Member] | Customer Relationships [Member]              
Finite-Lived Intangible Assets [Line Items]              
Fair value of identifiable intangible assets acquired   $ 0.8          
Estimated Useful Life   6 years          
Eventscape Parallel and Geometrik [Member]              
Finite-Lived Intangible Assets [Line Items]              
Net sales       11.5   16.9  
Operating income, losses       (0.1)   (2.6)  
Depreciation and amortization       $ 0.7   $ 1.0