v3.26.1
SUBSEQUENT EVENT (Details) - USD ($)
$ / shares in Units, $ in Millions
Aug. 02, 2026
Jul. 03, 2026
Dec. 31, 2025
Subsequent Event [Line Items]      
Common stock, par value (in dollars per share)   $ 0.001 $ 0.001
Armstrong Inc. | Subsequent Event      
Subsequent Event [Line Items]      
Common stock, par value (in dollars per share) $ 0.001    
Price to be paid per share (in dollars per share) $ 127.00    
Termination fee, acquiree $ 154.0    
Termination Fee, acquirer $ 307.0    
Merger Agreement, Breach Of Closing Conditions, Cure Period 20 days    
Merger Agreement, Breach Of Closing Conditions, If Earlier, Days Prior, to Outside Date, Cure Period 5 days    
Merger agreement, termination conditions disclosure, period (prior to) 5 days    
Merger agreement, termination conditions disclosure, consummation transaction involving superior merger proposal, period 12 months    
Armstrong Inc. | Subsequent Event | Non-Vested Restricted Stock Units      
Subsequent Event [Line Items]      
Awards cancelled in exchange for cash, percentage 50.00%    
Awards converted into deferred cash award equal to vesting based on original vesting conditions, percentage 50.00%    
Armstrong Inc. | Subsequent Event | Performance Stock Units      
Subsequent Event [Line Items]      
Awards paid, as soon as practicable, open performance period, converted to cash, percentage 50.00%    
Awards paid subject to satisfaction of original service vesting conditions, percentage 50.00%