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Subsequent Events (Notes)	12 Months Ended
Subsequent Events (Notes)	Dec. 31, 2014
Subsequent Events [Line Items]
Subsequent Events	Subsequent Events On February 3, 2015, the Company acquired the assets of Newmerical Technologies International, a leading developer of in-flight icing simulation software and associated design, testing and certification services, for a purchase price of approximately $10.5 million in cash. The acquisition will be accounted for as a business combination.