XML 124 R85.htm IDEA: XBRL DOCUMENT v2.4.0.8
Leases (Details 1) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Aggregate rentals over the lease term including lease renewal options      
Gross rent expense $ 53,484 $ 44,618 $ 38,382
Sublease rent revenue (181) (141) (132)
Net rent expense $ 53,303 $ 44,477 $ 38,250