Fair Value Measurements (Schedule Of Non-Recurring Losses Recognized Using Fair Value Measurements And The Carrying Value Of Any Assets And Liabilities Measured Using Fair Value Estimates) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Carrying Value	$ 7,139	$ 47,463
Assets, Non-Recurring Losses	1,714
Liabilities, Carrying Value		583
Liabilities, Non-Recurring Losses	10	203
Vacant Leased Facilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Liabilities, Carrying Value		583
Liabilities, Non-Recurring Losses	10	203
Vacant Owned Facilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Carrying Value	5,794	10,123
Assets, Non-Recurring Losses	486
Net Assets Of Acquired Businesses [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Carrying Value	1,345	37,340
Other Indentifiable Intangible Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Non-Recurring Losses	$ 1,228