Noncontrolling Interests (Narrative) (Details) (Indura [Member])	6 Months Ended
Mar. 31, 2014
Indura [Member]
Noncontrolling Interest [Line Items]
Agreement to purchase additional equity interest under put option	30.50%
Put option exercise period start date	Jul. 01, 2015
Put option exercise period beginning 1 July 2015	2 years
Current ownership percentage	67.30%

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration