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4. Intangible Assets, Goodwill and Other Intangible Assets (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2014
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price $ 433.7   $ 433.7     $ 425.9
Accumulated Amortization (242.4)   (242.4)     (218.1)
Net Carrying Amount 191.3   191.3     207.8
Amortization [Abstract]            
Amortization expense 9.3 $ 11.0 18.5 $ 21.9    
Intangible Assets, Gross (Excluding Goodwill) 480.1   480.1     472.3
Customer Relationships [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price 90.6   90.6     89.4
Accumulated Amortization (46.7)   (46.7)     (43.0)
Net Carrying Amount 43.9   43.9     46.4
Know how [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price 190.2   190.2     184.7
Accumulated Amortization (117.2)   (117.2)     (102.5)
Net Carrying Amount 73.0   73.0     82.2
Developed Technology Rights [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price 104.8   104.8     103.9
Accumulated Amortization (47.3)   (47.3)     (42.8)
Net Carrying Amount 57.5   57.5     61.1
Licensing Agreements [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price 39.8   39.8     39.4
Accumulated Amortization (27.6)   (27.6)     (26.5)
Net Carrying Amount 12.2   12.2     12.9
Trade Names [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price 3.5   3.5     3.6
Accumulated Amortization (2.2)   (2.2)     (2.1)
Net Carrying Amount 1.3   1.3     1.5
Noncompete Agreements [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Purchase Price 4.8   4.8     4.9
Accumulated Amortization (1.4)   (1.4)     (1.2)
Net Carrying Amount 3.4   $ 3.4     3.7
Minimum [Member] | Customer Relationships [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     2 years   3 years  
Minimum [Member] | Know how [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     1 year   1 year  
Minimum [Member] | Developed Technology Rights [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     4 years   5 years  
Minimum [Member] | Licensing Agreements [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     1 year   1 year  
Minimum [Member] | Trade Names [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     1 year   1 year  
Minimum [Member] | Noncompete Agreements [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     3 years   3 years  
Minimum [Member] | Other Intangible Assets [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)            
Maximum [Member] | Customer Relationships [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     10 years   10 years  
Maximum [Member] | Know how [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     10 years   11 years  
Maximum [Member] | Developed Technology Rights [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     12 years   12 years  
Maximum [Member] | Licensing Agreements [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     11 years   11 years  
Maximum [Member] | Trade Names [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     9 years   10 years  
Maximum [Member] | Noncompete Agreements [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)     8 years   8 years  
Maximum [Member] | Other Intangible Assets [Member]            
Finite-Lived Intangible Assets, Net [Abstract]            
Average Remaining Life (years)            
In Process Research and Development [Member]            
Amortization [Abstract]            
Indefinite-Lived Intangible Assets (Excluding Goodwill) $ 46.4   $ 46.4     $ 46.4