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Pension and Employee Benefit Plans (Details)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 30, 2015
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Participant
Mar. 31, 2015
USD ($)
Defined Benefit Plan Disclosure [Line Items]            
Portion of employee contribution matched       50.00% 50.00% 50.00%
Defined contribution plan cost recognized       $ 4.7 $ 4.6 $ 5.9
Components of net periodic benefit cost [Abstract]            
Settlements $ (1.8) $ (1.1) $ (39.2)   42.1  
Other changes in benefit obligation recognized in other comprehensive loss (income):            
Amortization of net actuarial loss [1]       $ 5.2 $ 48.3  
Maximum [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Contribution by employee       5.00% 5.00% 5.00%
Pension Plans [Member]            
Change in benefit obligation [Roll Forward]            
Benefit obligation at beginning of year       $ 261.0 $ 328.2  
Service cost       0.6 0.6 $ 0.5
Interest cost       9.8 11.2 13.0
Actuarial gain       (0.5) (2.8)  
Benefits paid [2]       (19.8) (78.1)  
Acquired obligations [3]       20.3 0.0  
Effect of exchange rate changes       (1.6) 1.9  
Benefit obligation at end of year 261.0     269.8 261.0 328.2
Change in plan assets [Roll Forward]            
Fair value of plan assets at beginning of year       141.5 217.0  
Actual return on plan assets       11.0 (5.3)  
Benefits paid [2]       (19.8) (78.1)  
Employer contributions       9.5 7.9  
Acquired plan assets [3]       6.0 0.0  
Fair value of plan assets at end of year 141.5     148.2 141.5 217.0
Funded status at end of year (119.5)     (121.6) (119.5)  
Amounts recognized in the consolidated balance sheets [Abstract]            
Current liability (0.9)     (2.2) (0.9)  
Noncurrent liability (118.6)     (119.4) (118.6)  
Total liability (119.5)     (121.6) (119.5)  
Pension plans with accumulated benefit obligations in excess of plan assets [Abstract]            
Accumulated benefit obligation 257.9     266.8 257.9  
Amounts recognized in accumulated other comprehensive loss [Abstract]            
Net actuarial loss (gain) 162.0     156.8 162.0  
Components of net periodic benefit cost [Abstract]            
Service cost       0.6 0.6 0.5
Interest cost       9.8 11.2 13.0
Expected return on plan assets       (12.3) (14.9) (16.7)
Amortization of net actuarial loss       5.6 6.4 5.5
Settlements [4]       0.0 42.1 0.0
Net periodic benefit cost       3.7 45.4 2.3
Other changes in benefit obligation recognized in other comprehensive loss (income):            
Net actuarial loss       1.0 17.5 46.4
Amortization of net actuarial loss [4]       (5.6) (48.5) (5.5)
Total recognized in other comprehensive (income) loss       (4.6) (31.0) 40.9
Reversal of amortization items [Abstract]            
Estimated net actuarial loss that will be amortized       (5.6)    
Estimated future benefit payments [Abstract]            
Anticipated contributions for 2018 fiscal year       13.1    
2018       17.1    
2019       16.4    
2020       17.0    
2021       17.1    
2022       17.6    
2023-2027       90.4    
Postretirement Plans [Member]            
Components of net periodic benefit cost [Abstract]            
Net periodic benefit cost       0.3 0.3 0.1
U.S. Pension Plans [Member]            
Change in plan assets [Roll Forward]            
Fair value of plan assets at beginning of year [5]       141.5    
Employer contributions       8.1 6.7 $ 5.9
Fair value of plan assets at end of year [5] $ 141.5     $ 148.2 141.5  
Components of net periodic benefit cost [Abstract]            
Settlements         $ 42.1  
Voluntary Lump Sum Payout Program [Abstract]            
Number of participants accepted lump-sum payout program | Participant         2,000  
Amount paid for settlement lump-sum payout program         $ 65.3  
Weighted-average assumptions used in calculating benefit obligation [Abstract]            
Discount rate 4.10%     4.10% 4.10%  
Weighted-average assumptions used in calculating plan cost [Abstract]            
Discount rate used to determine cost of pension plan       4.10% 4.30% 4.70%
Defined Benefit Plan, Information about Plan Assets [Abstract]            
Target allocation       100.00%    
Plan assets 100.00%     100.00% 100.00%  
Expected return on plan assets       8.00% 8.00% 8.00%
Expected return on plan assets for next fiscal year       7.50%    
U.S. Pension Plans [Member] | Selling, General and Administrative Expenses [Member]            
Components of net periodic benefit cost [Abstract]            
Settlements         $ 33.3  
U.S. Pension Plans [Member] | Cost of Sales [Member]            
Components of net periodic benefit cost [Abstract]            
Settlements         $ 8.8  
U.S. Pension Plans [Member] | Luvata HTS [Member]            
Change in plan assets [Roll Forward]            
Funded status at end of year       $ 14.3    
U.S. Pension Plans [Member] | Equity Securities [Member]            
Defined Benefit Plan, Information about Plan Assets [Abstract]            
Target allocation       60.00%    
Plan assets 56.00%     58.00% 56.00%  
U.S. Pension Plans [Member] | Debt Securities [Member]            
Defined Benefit Plan, Information about Plan Assets [Abstract]            
Target allocation       38.00%    
Plan assets 36.00%     38.00% 36.00%  
U.S. Pension Plans [Member] | Alternative Assets [Member]            
Defined Benefit Plan, Information about Plan Assets [Abstract]            
Target allocation       0.00%    
Plan assets 4.00%     0.00% 4.00%  
U.S. Pension Plans [Member] | Cash [Member]            
Defined Benefit Plan, Information about Plan Assets [Abstract]            
Target allocation       2.00%    
Plan assets 4.00%     4.00% 4.00%  
Foreign Pension Plans [Member]            
Weighted-average assumptions used in calculating benefit obligation [Abstract]            
Discount rate 1.80%     1.70% 1.80%  
Weighted-average assumptions used in calculating plan cost [Abstract]            
Discount rate used to determine cost of pension plan       1.70% 1.30% 3.00%
[1] Amounts are included in the calculation of net periodic benefit cost for the Company's defined benefit plans, which include pension and other postretirement plans. See Note 16 for additional information about the Company's pension plans.
[2] In fiscal 2016, $65.3 million was paid from plan assets in connection with lump-sum payouts.
[3] As a result of its acquisition of Luvata HTS, the Company acquired pension plans in Italy, Austria and the U.S. See Note 2 for additional information.
[4] During fiscal 2016, in connection with lump-sum payouts to pension plan participants, the Company recorded $42.1 million of settlement losses, which were previously recorded in accumulated other comprehensive loss.
[5] As a practical expedient, the Company valued a collective trust fund using its net asset value per unit, and therefore, has not classified this investment within the fair value hierarchy.