SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Goodwill, intangible and other long-lived assets and impairments
Impairment of intangible assets (excluding goodwill)	$ 6,000	$ 9,000	$ 12,050
Non cash impairment charges after tax	5,310	8,160	12,030
Intangible asset amortization	27,773	25,328	$ 21,612
Goodwill
Goodwill deductible for tax purposes	$ 133,120	$ 119,780
Minimum
Economic useful lives and amortization of intangible assets
Amortization period	4 years
Maximum
Economic useful lives and amortization of intangible assets
Amortization period	30 years
Patent
Economic useful lives and amortization of intangible assets
Amortization period	14 years