Airedale Facility Fire (Details) (Loss by Fire [Member], USD $) In Millions, unless otherwise specified	12 Months Ended	19 Months Ended
	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2014
Loss by Fire [Member]
Unusual or Infrequent Item [Line Items]
Recoveries from insurance included in selling, general, and administrative expenses	$ 4.6
Cash proceeds received from insurance provider		62.7
Inventory write off		4.7
Equipment write off		1.4
Other costs attributable to fire		22.0
Aggregate losses and costs		28.1
Company paid reconstruction costs		21.2
Liability to rebuild damaged facility	48.0	48.0	45.0
Current liability to rebuild damaged facility			37.0
Noncurrent liability to rebuild damaged facility			8.0
Insurance receivable	18.0	18.0	25.4
Insurance receivable current			18.4
Insurance receivable noncurrent			$ 7.0