FAIR VALUE - Other non-financial assets (Details) - Other Non-financial Assets - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Fair value measurement on non-recurring basis using significant unobservable inputs (Level 3)
Beginning balances	$ 948,157	$ 775,550
Total gains/income (losses/expense):
Included in net income - realized	(31,547)	(34,152)
Acquired during the period	44,052	205,764
Acquisition adjustments and retirements during the period	(1,906)	995
Ending balances	$ 958,756	$ 948,157