Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Effective income tax rate	(58.30%)	22.60%	16.00%	43.20%
Valuation Allowance [Line Items]
Gross unrecognized tax benefits			$ 6.9
Pension [Member]
Valuation Allowance [Line Items]
Pension settlement loss, tax		$ 0.5		$ 15.7
Foreign Tax Jurisdiction [Member]
Valuation Allowance [Line Items]
Deferred tax asset, valuation allowance	$ 42.4		42.4
Possible future release of valuation allowance against certain tax assets	6.0		6.0
Domestic Tax Jurisdiction [Member]
Valuation Allowance [Line Items]
Deferred tax asset, valuation allowance	$ 5.4		$ 5.4