XML 66 R89.htm IDEA: XBRL DOCUMENT v3.2.0.727
Restructuring (Details) - USD ($)
$ in Millions
 12 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2013
Restructuring and Related Charges:      
Total restructuring charge $ 263.8    
Beginning Balance 1.7 $ 7.7 $ 8.8
Charge to expense 15.4 20.8 38.8
Cash payments (16.5) (23.9) (31.7)
Noncash utilization (0.1) (2.9) (8.2)
Ending Balance 0.5 1.7 7.7
Long-Lived Asset Charges [Member]      
Restructuring and Related Charges:      
Total restructuring charge 102.7    
Beginning Balance 0.0 0.0 0.0
Charge to expense 0.1 2.7 8.2
Cash payments 0.0 0.0 0.0
Noncash utilization (0.1) (2.7) (8.2)
Ending Balance 0.0 0.0 0.0
Employee Separation [Member]      
Restructuring and Related Charges:      
Total restructuring charge 64.0    
Beginning Balance 1.7 7.7 8.8
Charge to expense 0.5 2.6 3.4
Cash payments (1.7) (8.4) (4.5)
Noncash utilization 0.0 (0.2) 0.0
Ending Balance 0.5 1.7 7.7
Site Preparation and Equipment Relocation [Member]      
Restructuring and Related Charges:      
Total restructuring charge 45.5    
Beginning Balance 0.0 0.0 0.0
Charge to expense 5.3 7.2 13.4
Cash payments (5.3) (7.2) (13.4)
Noncash utilization 0.0 0.0 0.0
Ending Balance 0.0 0.0 0.0
Production Start-up [Member]      
Restructuring and Related Charges:      
Total restructuring charge 42.2    
Beginning Balance 0.0 0.0 0.0
Charge to expense 8.4 7.2 10.8
Cash payments (8.4) (7.2) (10.8)
Noncash utilization 0.0 0.0 0.0
Ending Balance 0.0 0.0 0.0
Other Costs [Member]      
Restructuring and Related Charges:      
Total restructuring charge 9.4    
Beginning Balance 0.0 0.0 0.0
Charge to expense 1.1 1.1 3.0
Cash payments (1.1) (1.1) (3.0)
Noncash utilization 0.0 0.0 0.0
Ending Balance $ 0.0 $ 0.0 $ 0.0