Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2012

Intangible Assets

Schedule of gross carrying amounts and accumulated amortization of intangible assets

		September 30, 2012				December 31, 2012
(in thousands)	Estimated useful lives	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
CCP contracts	20 years	$	106,400	$	53,379	$	106,400	$	54,709
Customer relationships	5 - 15 years	72,464		38,382		72,464		39,680
Trade names	5 - 20 years	67,890		27,105		67,890		27,979
Patents and patented technologies	4 - 19 years	55,102		41,661		55,102		43,009
Other	3 - 17 years	3,760		1,178		3,760		1,264
		$	305,616	$	161,705	$	305,616	$	166,641

Schedule of total estimated annual amortization expense

Year ending September 30:	(in thousands)
2013	$	19,746
2014	19,204
2015	15,057
2016	14,801
2017	13,922
2018	13,873