XML 67 R54.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 10 - Commitments and Contingencies (Details Textual) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Operating Leases, Future Minimum Payments Due $ 74.2    
Operating Leases, Future Minimum Payments Due, Next Twelve Months 24.5    
Operating Leases, Future Minimum Payments, Due in Two Years 18.6    
Operating Leases, Future Minimum Payments, Due in Three Years 15.0    
Operating Leases, Future Minimum Payments, Due in Four Years 8.8    
Operating Leases, Future Minimum Payments, Due in Five Years 4.2    
Operating Leases, Future Minimum Payments, Due Thereafter 3.1    
Operating Leases, Rent Expense, Net 64.3 $ 44.1 $ 39.5
Purchase Obligation, Due in Next Twelve Months 797.6    
Loss Contingency, Estimate of Possible Loss 4.4    
Estimated Litigation Liability $ 10.0