Income Taxes (Details 3) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Tax Attributes, Tax Benefit Amount [Abstract]
Capital loss carryforward	$ 13.6	$ 14.8
Subtotal - tax carryforwards	48.0
Other deferred tax assets	0.9
Total	48.9
Tax Attributes, Valuation Allowance [Abstract]
Subtotal - tax carryforwards	21.3
Other deferred tax assets	0.9
Total	22.2
Non-United States [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, subject to expiration	5.8
Net operating loss carryforward, not subject to expiration	6.5
Capital loss carryforward	13.6
Tax Attributes, Valuation Allowance [Abstract]
Net operating loss carryforward, subject to expiration	5.8
Net operating loss carryforward, not subject to expiration	1.7
Capital loss carryforward	$ 13.6
Non-United States [Member] | Minimum [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, carryforward period ends	Sep. 30, 2016
Non-United States [Member] | Maximum [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, carryforward period ends	Sep. 30, 2025
United States [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward	$ 3.6
Tax credit carryforward	1.2
Tax Attributes, Valuation Allowance [Abstract]
Net operating loss carryforward, subject to expiration	0.0
Tax credit carryforward	$ 0.0
United States [Member] | Minimum [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, carryforward period ends	Sep. 30, 2019
Tax credit carryforward, carryforward period ends	Sep. 30, 2018
United States [Member] | Maximum [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, carryforward period ends	Sep. 30, 2033
Tax credit carryforward, carryforward period ends	Sep. 30, 2027
State and Local [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward	$ 10.0
Tax credit carryforward	7.3
Tax Attributes, Valuation Allowance [Abstract]
Net operating loss carryforward, subject to expiration	0.2
Tax credit carryforward	$ 0.0
State and Local [Member] | Minimum [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, carryforward period ends	Sep. 30, 2016
Tax credit carryforward, carryforward period ends	Sep. 30, 2025
State and Local [Member] | Maximum [Member]
Tax Attributes, Tax Benefit Amount [Abstract]
Net operating loss carryforward, carryforward period ends	Sep. 30, 2033
Tax credit carryforward, carryforward period ends	Sep. 30, 2030