Discontinued Operations, Assets Held for Sale and Divestitures (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Sep. 30, 2013 U.S. Pipe [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 1.5
Proceeds from Divestiture of Businesses		$ 4.5