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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Commitments and Contingencies (Details) $ in Millions, $ in Millions	3 Months Ended	6 Months Ended		9 Months Ended
	Dec. 31, 2019 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2019 CAD ($)
Loss Contingency, Damages Sought, Value	$ 450.0			$ 10.0
Income Tax Examination, Penalties Accrued	22.2
IRS-Walter Energy Claim 1 [Member]
Loss Contingency, Damages Sought, Value	554.3
IRS-Walter Energy Claim 2 [Member]
Loss Contingency, Damages Sought, Value	$ 860.4
Product Concentration Risk [Member]
Operating Leases
Product Warranty Expense		$ 14.1	$ 9.8