Commitments and Contingencies (Details) $ in Millions		3 Months Ended		9 Months Ended
	Nov. 04, 2014 Claim	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Long-term Purchase Commitment [Line Items]
Rent expense under operating leases		$ 0.1	$ 0.1	$ 0.4	$ 0.3
Non-cancellable purchase commitments		5.3		5.3
Operating lease commitments		0.3		0.3
Number of plaintiff's claims dismissed (claim) | Claim	6
Inventories
Long-term Purchase Commitment [Line Items]
Purchase obligations		$ 5.0		$ 5.0