CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) (USD $)	Jun. 30, 2012	Sep. 30, 2011
Equity:
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	49,000,000	49,000,000
Common stock, shares issued (in shares)	29,392,755	28,779,998
Common stock restricted shares (in shares)	394,849	649,007
Treasury stock shares (in shares)	9,469,996	9,126,966