Annual report pursuant to Section 13 and 15(d)

Related party transactions (Details)

v2.4.0.8
Related party transactions (Details) (Winston & Strawn, USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Winston & Strawn
     
Related party transactions      
Legal fees paid $ 0.2 $ 0.3 $ 0.2