Basis of Presentation (Details) enterprise_customer in Thousands, developer in Millions, $ in Millions	6 Months Ended
	May 31, 2017 USD ($) enterprise_customer developer software_vendor	Feb. 28, 2017 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of independent software vendors | software_vendor	1,700
Number of enterprise customers | enterprise_customer	80
Number of developers | developer	2
Unamortized debt issuance costs reclassified (from) other assets to long-term debt	$ 0.9
Other Assets [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized debt issuance costs reclassified (from) other assets to long-term debt		$ (1.0)
Long-term Debt [Member] | Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized debt issuance costs reclassified (from) other assets to long-term debt		$ 1.0