Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Sep. 30, 2014
Statement of Financial Position [Abstract]
Receivables, Allowance for Uncollectible Accounts	$ 40,922	$ 31,811
Common Stock, Par Value	$ 1	$ 1
Common Stock, Shares Authorized	200,000,000us-gaap_CommonStockSharesAuthorized	200,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, Shares Issued	84,385,366us-gaap_CommonStockSharesIssued	84,157,220us-gaap_CommonStockSharesIssued
Common Stock, Shares Outstanding	84,385,366us-gaap_CommonStockSharesOutstanding	84,157,220us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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