|12 Months Ended|
Feb. 28, 2018
|Goodwill and Intangible Assets Disclosure [Abstract]|
|Changes in the carrying amount of goodwill||
The changes in the carrying amount of goodwill are as follows:
Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.
Reference 1: http://www.xbrl.org/2003/role/presentationRef