Intangibles, Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified					3 Months Ended				3 Months Ended				3 Months Ended				3 Months Ended
	Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2012 Customer Relationships [Member] Amortizing [Member]	Sep. 30, 2011 Customer Relationships [Member] Amortizing [Member]	Jun. 30, 2012 Customer Relationships [Member] Amortizing [Member] Maximum [Member] years	Jun. 30, 2012 Customer Relationships [Member] Amortizing [Member] Minimum [Member] years	Jun. 30, 2012 Noncompete Agreements [Member] Amortizing [Member]	Sep. 30, 2011 Noncompete Agreements [Member] Amortizing [Member]	Jun. 30, 2012 Noncompete Agreements [Member] Amortizing [Member] Maximum [Member] years	Jun. 30, 2012 Noncompete Agreements [Member] Amortizing [Member] Minimum [Member] years	Jun. 30, 2012 Technology [Member] Amortizing [Member]	Sep. 30, 2011 Technology [Member] Amortizing [Member]	Jun. 30, 2012 Technology [Member] Amortizing [Member] Maximum [Member] years	Jun. 30, 2012 Technology [Member] Amortizing [Member] Minimum [Member] years	Jun. 30, 2012 Other Intangible Assets [Member] Amortizing [Member]	Sep. 30, 2011 Other Intangible Assets [Member] Amortizing [Member]	Jun. 30, 2012 Other Intangible Assets [Member] Amortizing [Member] Maximum [Member] years	Jun. 30, 2012 Other Intangible Assets [Member] Amortizing [Member] Minimum [Member] years	Jun. 30, 2012 Trade Name And Patents [Member] Non Amortizing [Member]	Sep. 30, 2011 Trade Name And Patents [Member] Non Amortizing [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross			$ 30,491	$ 24,981			$ 897	$ 808			$ 5,830	$ 0			$ 1,050	$ 455
Accumulated Amortization	7,064	5,109
Indefinite-lived Intangible Assets																			7,628	3,759
Intangible Assets, Net	$ 38,832	$ 24,894
Finite-Lived Intangible Assets, Useful Life					20	9			5	1			11	11			7	2