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FAIR VALUE (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Feb. 29, 2012 | Feb. 28, 2011
Accumulated other comprehensive income |  |
Cumulative unrealized losses relating to assets still held at each reporting date, net of taxes |  | $ (884)
ARS |  |
Fair value measurement on recurring basis using significant unobservable inputs (Level 3) |  |
Beginning balances | 20,711 | 20,534
Total gains (losses): |  |
Included in net income - realized | (626) |
Included in other comprehensive income - unrealized | 1,213 | 527
Sales at par | (3,250) | (350)
Sales at fair value | (18,048) |
Ending balances |  | 20,711
Accumulated other comprehensive income |  |
Cumulative unrealized losses relating to assets still held at each reporting date, net of taxes |  | (884)
Other Non-financial Assets |  |
Fair value measurement on non-recurring basis using significant unobservable inputs (Level 3) |  |
Beginning balances | 660,947 | 363,061
Total gains (losses): |  |
Included in net income - realized | (20,069) | (11,858)
Acquired during the period | 178,676 | 309,984
Acquisition adjustments during the period | 9,946 | (240)
Ending balances | $ 829,500 | $ 660,947

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