Description of Business, Basis of Presentation, and Significant Accounting Policies (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Nov. 30, 2015 |
Nov. 30, 2014 |
Nov. 30, 2015 |
Nov. 30, 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 | $ 8.7 | $ 7.9 | $ 17.5 | $ 15.4 | ||
| X | ||||||||||
- Definition Description of business and significant accounting policies. No definition available.
|
| X | ||||||||||
- Definition Maximum Individual Claims Liability Health Insurance No definition available.
|
| X | ||||||||||
- Definition Maximum individual claims liability workers compensation insurance. No definition available.
|
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Disclosure about revenues from external customers (1) attributed to the entity's country of domicile and (2) attributed to all foreign countries in total from which the entity derives revenues. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Disclosures about long-lived assets (except financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets) that are (1) located in the entity's country of domicile, and (2) located in all foreign countries in which the entity holds assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|