Goodwill And Other Intangible Assets (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 3,270	$ 1,033	$ 929
Amortization expense next fiscal year	2,890
Amortization expense year two	2,870
Amortization expense year three	2,870
Amortization expense year four	2,870
Amortization expense year five	2,740
Customer Lists And Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business acquisition, intangible assets with finite lives	$ 29,914	$ 1,433