Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Consolidated Balance Sheets [Abstract]
Receivables, Allowance for Uncollectible Accounts	$ 38,996	$ 30,317
Common Stock, Par Value	$ 1	$ 1
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares Issued	83,521,745	83,330,140
Common Stock, Shares Outstanding	83,521,745	83,330,140