Goodwill And Intangible Assets (Summary Of Intangible Assets) (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	15 years 9 months 18 days
Gross Asset	$ 564.7	$ 568.2
Accumulated Amortization	228.7	214.8
Net	336.0	353.5
Finite-Lived Intangible Assets, Net	$ 336.0	353.5	$ 408.9
Intellectual Property Rights
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	16 years 6 months
Gross Asset	$ 89.8	91.3
Accumulated Amortization	51.1	50.4
Net	$ 38.7	40.9
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	15 years 6 months
Gross Asset	$ 400.9	402.6
Accumulated Amortization	123.6	112.5
Net	$ 277.3	290.1
Drawings
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	37 years 10 months 24 days
Gross Asset	$ 11.1	11.1
Accumulated Amortization	10.1	10.1
Net	$ 1.0	1.1
Other Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period of Finite Lived Assets (in years)	12 years 10 months 24 days
Gross Asset	$ 62.9	63.2
Accumulated Amortization	43.9	41.8
Net	$ 19.0	$ 21.4