Quarterly report pursuant to Section 13 or 15(d)

Description of Business, Basis of Presentation, and Significant Accounting Policies (Details)

v3.3.0.814
Description of Business, Basis of Presentation, and Significant Accounting Policies (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Aug. 31, 2015
Aug. 31, 2014
May. 31, 2015
Dec. 31, 2014
Description of Business, Basis of Presentation, and Significant Accounting Policies (Textual)        
Disclosure on geographic areas, Description of revenue from external customers revenue within Germany, which represented less than one percent of the Company's total revenue revenue within Germany, which represented less than one percent of the Company's total revenue    
Disclosure on geographic areas, Long-lived assets Long-lived assets in Germany are insignificant in relation to total long-lived assets of the Company   Long-lived assets in Germany are insignificant in relation to total long-lived assets of the Company  
Maximum individual workers' compensation claims liability $ 1.3   $ 1.0  
Maximum individual claims liability health insurance 0.3     $ 0.3
Stock-based compensation costs recognized $ 8.8 $ 7.5