XML 41 R30.htm IDEA: XBRL DOCUMENT v3.21.1
Revenue and Contracts with Customers (Contract with Customer Asset and Liability) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Deferred costs associated with deferred revenue $ 136.0   $ 151.9
Provision for Loss on Contract Change (1.3)    
Provision for Loss on Contract Noncurrent Change (0.7)    
Loss on contracts   $ 3.5  
Deferred revenue 253.5   281.7
Deferred revenue – change (28.2)    
Advances from customers, current 2.0   1.5
Customer advances – change 0.5    
Advances from customer, noncurrent 44.4   45.2
Advances from customers, noncurrent - change (0.8)    
Deferred revenue, revenue recognized (28.5) 0.0  
Provision for Loss on Contracts Total 5.7    
Provision for Loss on Contracts Utilized 2.0 $ 3.0  
Government [Member]      
Provision for Loss on Contracts 5.7   7.0
Provision for loss on contracts, noncurrent $ 0.0   $ 0.7