Goodwill And Other Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2011

Goodwill And Other Intangible Assets [Abstract]

Schedule Of Intangible Assets Gross Carrying Amounts And Accumulated Amortization

(Dollars in millions)		2011	2010
Goodwill	$	361.9	355.7
Intangible assets with determinable lives:
Patents
Gross carrying amount	$	13.5	13.5
Less: accumulated amortization		13.3	13.3
Net	$	0.2	0.2
Capitalized software
Gross carrying amount	$	116.7	102.4
Less: accumulated amortization		57.4	49.3
Net	$	59.3	53.1
Customer Relationships
Gross carrying amount	$	61.4	61.4
Less: accumulated amortization		11.6	8.3
Net	$	49.8	53.1
Other
Gross carrying amount	$	10.3	9.7
Less: accumulated amortization		9.6	8.2
Net	$	0.7	1.5
Intangible assets with indefinite lives:
Trade names	$	121.8	121.8

Schedule Of Changes In The Carrying Amount Of Goodwill Attributable To Business Segment

(Dollars in millions)		USG	Test Filtration		Total
Balance as of
September 30, 2009	$	279.9	30.5	20.3	330.7
Acquisitions/adjustments		16.2	—	8.8	25.0
Balance as of
September 30, 2010		296.1	30.5	29.1	355.7
Acquisitions/adjustments		1.7	4.3	0.2	6.2
Balance as of
September 30, 2011	$	297.8	34.8	29.3	361.9