ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Changes in Accumulated Other Comprehensive Income by Component    
Beginning Balance $ (126,156) $ (77,481)
Other comprehensive loss before reclassifications (85,788) (50,534)
Net gains (losses) reclassified from accumulated other comprehensive loss 31,439 1,859
Net current-period other comprehensive loss (54,349) (48,675)
Ending Balance (180,505) (126,156)
Unrealized gain on derivative instruments and other    
Changes in Accumulated Other Comprehensive Income by Component    
Beginning Balance (32,849) (18,857)
Other comprehensive loss before reclassifications (76,470) (15,851)
Net gains (losses) reclassified from accumulated other comprehensive loss 41,053 1,859
Net current-period other comprehensive loss (35,417) (13,992)
Ending Balance (68,266) (32,849)
Foreign currency translation adjustments    
Changes in Accumulated Other Comprehensive Income by Component    
Beginning Balance (93,307) (58,624)
Other comprehensive loss before reclassifications (9,318) (34,683)
Net gains (losses) reclassified from accumulated other comprehensive loss (9,614)  
Net current-period other comprehensive loss (18,932) (34,683)
Ending Balance $ (112,239) $ (93,307)