Business Combinations (Details 1) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Feb. 03, 2012 Y
Acquired identifiable intangible assets
Total identifiable intangible assets, Fair Value	$ 198.6
Customer contracts and relationships [Member]
Acquired identifiable intangible assets
Total identifiable intangible assets, Fair Value	164.4
Total identifiable intangible assets, Useful Life in Years	5
Developed product technology [Member]
Acquired identifiable intangible assets
Total identifiable intangible assets, Fair Value	32.4
Total identifiable intangible assets, Useful Life in Years	3
Trademarks and tradenames [Member]
Acquired identifiable intangible assets
Total identifiable intangible assets, Fair Value	$ 1.8
Total identifiable intangible assets, Useful Life in Years	3