Goodwill And Other Intangible Assets Goodwill And Other Intangible Assets (Impairment Evaluation) (Details) (Hospital Piping Business [Member], Finite-Lived Intangible Assets [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Sep. 30, 2012
Hospital Piping Business [Member] | Finite-Lived Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)	$ 1.7