Quarterly report pursuant to Section 13 or 15(d)

STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION - Summary of Activity Relating to Restricted Stock Units (Details)

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STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION - Summary of Activity Relating to Restricted Stock Units (Details) - Restricted stock - $ / shares
shares in Thousands
3 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Shares    
Shares, Nonvested, beginning balance (in shares) 11,109  
Shares, Granted (in shares) 925  
Shares, Vested (in shares) (306)  
Shares, Forfeited (in shares) (174)  
Shares, Nonvested, ending balance (in shares) 11,554  
Weighted-Average Grant Date Fair Value Per Share    
Weighted Average Grant Date Fair Value, Nonvested, beginning balance (usd per share) $ 1.39  
Weighted-Average Grant Date Fair Value (usd per share) 0.48 $ 1.97
Weighted Average Grant Date Fair Value, Vested (usd per share) 1.36  
Weighted Average Grant Date Fair Value, Forfeited (usd per share) 1.43  
Weighted Average Grant Date Fair Value, Nonvested, ending balance (usd per share) $ 1.32