Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued	64,208,000	64,057,000
Common stock, shares outstanding	64,208,000	64,057,000