Acquisitions - Schedule of Acquired Intangible Assets (Details) - Thinklogical Holdings LLC $ in Thousands	May 31, 2017 USD ($)
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 76,400
Total intangible assets not subject to amortization	68,394
Total intangible assets	$ 144,794
Amortization Period	9 years 7 months 6 days
Goodwill
Business Acquisition [Line Items]
Total intangible assets not subject to amortization	$ 68,394
Developed technologies
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 65,200
Amortization Period	10 years
Customer relationships
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 6,600
Amortization Period	8 years
Trademarks
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 3,100
Amortization Period	10 years
Sales backlog
Business Acquisition [Line Items]
Total intangible assets subject to amortization	$ 1,500
Amortization Period	3 months 19 days