CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) (USD $)	Jun. 30, 2011	Sep. 30, 2010
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)	28,760,970	28,167,909
Common stock issued shares, non-vested restricted shares (in shares)	641,496	741,086
Treasury stock shares (in shares)	9,089,723	9,125,253