Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Sep. 30, 2011
Consolidated Balance Sheets [Abstract]
Receivables, Allowance for Uncollectible Accounts	$ 43,124	$ 31,039
Common Stock, Par Value	$ 1	$ 1
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares Issued	83,173,850	82,812,677
Common Stock, Shares Outstanding	83,173,850	82,812,677