XML 23 R41.htm IDEA: XBRL DOCUMENT v3.20.1
Acquisitions and Divestitures - Preliminary purchase price allocation (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Business Acquisition [Line Items]    
Goodwill $ 752.7 [1] $ 621.9
Construction Products Group    
Business Acquisition [Line Items]    
Goodwill 294.1 $ 166.2
Construction Products Group | Cherry Industries    
Business Acquisition [Line Items]    
Accounts receivable 30.8  
Inventories 11.8  
Property, plant, and equipment 62.1  
Mineral reserves 21.2  
Goodwill 125.7  
Other assets 4.1  
Accounts payable (7.6)  
Accrued and other liabilities (5.3)  
Deferred taxes (29.3)  
Other liabilities (1.8)  
Total net assets acquired 296.8  
Construction Products Group | Cherry Industries | Customer-Related Intangible Assets    
Business Acquisition [Line Items]    
Finite-Lived Intangibles 60.2  
Construction Products Group | Cherry Industries | Construction Permits    
Business Acquisition [Line Items]    
Finite-Lived Intangibles $ 24.9  
[1] Unaudited