XML 68 R57.htm IDEA: XBRL DOCUMENT v3.3.1.900
Accumulated Other Comprehensive Income (Loss) - Reclassification out of AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Feb. 29, 2016
Feb. 28, 2015
Feb. 29, 2016
Feb. 28, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Less: Tax effect $ 9.4 $ 9.7 $ (1.5) $ 0.6
Net income (loss) (9.0) (22.1) 6.5 12.3
Amount reclassified from Accumulated other comprehensive income (loss) | Retirement benefit plans        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Amortization of prior service cost (credit) 0.0 (0.1) 0.0 (0.2)
Amortization of unrecognized gain (loss) included in net periodic cost (credit) 1.1 0.8 3.3 2.1
Settlement charge 0.0 (0.6) 0.0 (4.3)
Less: Tax effect (0.3) (0.5) (1.0) (2.3)
Net income (loss) $ 0.8 $ 0.8 $ 2.3 $ 3.9