Goodwill, Purchased Intangibles, and Software Development Costs - Schedule of Goodwill by Segment (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Goodwill [Line Items]
Beginning Balance	$ 559,460
Foreign currency translation	(173)
Ending Balance	559,287
Americas
Goodwill [Line Items]
Beginning Balance	308,159
Foreign currency translation	0
Ending Balance	308,159
EMEA
Goodwill [Line Items]
Beginning Balance	101,882
Foreign currency translation	0
Ending Balance	101,882
APAC
Goodwill [Line Items]
Beginning Balance	149,419
Foreign currency translation	(173)
Ending Balance	$ 149,246