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Acquisitions (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 02, 2019
Oct. 25, 2019
Aug. 31, 2018
Jun. 07, 2018
Feb. 29, 2020
Mar. 02, 2019
Feb. 29, 2020
Mar. 02, 2019
Jun. 01, 2019
Business Acquisition [Line Items]                  
Payments to Acquire Intangible Assets             $ 0 $ 4,800,000  
Contingent Equity Method Purchase             33.00%    
Gain on consolidation of equity method investments         $ 0 $ 0 $ 30,500,000 $ 0  
Business Acquisition, Pro Forma Revenue             2,104,800,000   $ 2,757,300,000
Business Acquisition, Pro Forma Net Income (Loss)             139,900,000   $ 160,800,000
MAARS                  
Business Acquisition [Line Items]                  
Percentage of voting interests acquired     48.20%            
Purchase price     $ 6,100,000            
HAY                  
Business Acquisition [Line Items]                  
Percentage of voting interests acquired 34.00%     33.00%          
Purchase price $ 79.0     $ 65.5          
Payments to Acquire Intangible Assets       $ 4.8          
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions 67.00%                
Cash $ 12,100,000                
Working capital, net of cash and inventory step-up 12,300,000                
Net property and equipment 900,000                
Other assets 3,900,000                
Other liabilities (3,100,000)                
Net assets acquired 26,100,000                
Equity Method Investment Prior to Acquisition 65,500,000                
Goodwill, Acquired During Period             104,800,000    
Deferred Tax Liabilities, Goodwill         25,300,000   25,300,000    
Tradename             56,000,000.0    
Finite and Indefinite-Lived Intangible Assets Aquired 114,800,000                
HAY | Tradename                  
Business Acquisition [Line Items]                  
Tradename $ 56,000,000.0                
HAY | Inventory Step-up                  
Business Acquisition [Line Items]                  
Useful Life (years) 3 months 18 days                
Fair Value $ (3,400,000)                
HAY | Backlog                  
Business Acquisition [Line Items]                  
Useful Life (years) 3 months 18 days                
Fair Value $ (3,400,000)                
HAY | Deferred Revenue                  
Business Acquisition [Line Items]                  
Useful Life (years) 1 month 6 days                
Fair Value $ (2,000,000.0)                
HAY | Product Development/Technology                  
Business Acquisition [Line Items]                  
Useful Life (years) 11 years                
Fair Value $ (21,000,000.0)                
HAY | Customer Relationships                  
Business Acquisition [Line Items]                  
Useful Life (years) 14 years                
Fair Value $ (33,000,000.0)                
naughtone                  
Business Acquisition [Line Items]                  
Percentage of voting interests acquired   47.50%              
Purchase price   $ 45,900,000              
Cash   5,100,000              
Working capital, net of cash and inventory step-up   1,300,000              
Net property and equipment   800,000              
Net assets acquired   7,200,000              
Gain on consolidation of equity method investments             30,000,000    
Equity Method Investment Prior to Acquisition   20,500,000              
Goodwill, Acquired During Period             57,500,000    
Tradename             8,500,000    
Finite and Indefinite-Lived Intangible Assets Aquired   38,900,000              
Business Combinations, Changes in Assets Acquired         2,500,000        
naughtone | North America Contract                  
Business Acquisition [Line Items]                  
Goodwill, Acquired During Period             35,000,000.0    
naughtone | International Contract                  
Business Acquisition [Line Items]                  
Goodwill, Acquired During Period             $ 22,500,000    
naughtone | Tradename                  
Business Acquisition [Line Items]                  
Tradename   $ 8,500,000              
Business Combinations, Changes in Assets Acquired         4,100,000        
naughtone | Inventory Step-up                  
Business Acquisition [Line Items]                  
Useful Life (years)   3 months 18 days              
Fair Value   $ (200,000)              
naughtone | Backlog                  
Business Acquisition [Line Items]                  
Useful Life (years)   3 months 18 days              
Fair Value   $ (800,000)              
naughtone | Customer Relationships                  
Business Acquisition [Line Items]                  
Useful Life (years)   10 years              
Fair Value   $ (29,400,000)              
Business Combinations, Changes in Assets Acquired         $ 1,600,000