Quarterly report pursuant to Section 13 or 15(d)

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

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STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION - Summary of Activity Relating to Stock Options (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Jun. 30, 2016
USD ($)
$ / shares
shares
Options  
Options, Outstanding, beginning balance (in shares) | shares 4,131
Options, Forfeited (in shares) | shares (234)
Options, Expired (in shares) | shares (41)
Options, Outstanding, ending balance (in shares) | shares 3,856
Options, Vested and expected to vest at end of period (in shares) | shares 3,856
Options, Exercisable at end of period (in shares) | shares 3,856
Weighted- Average Exercise Price  
Weighted-Average Exercise Price, Outstanding, beginning balance (usd per share) | $ / shares $ 1.52
Weighted-Average Exercise Price, Forfeited (usd per share) | $ / shares 0.98
Weighted-Average Exercise Price, Expired (usd per share) | $ / shares 0.97
Weighted-Average Exercise Price, Outstanding, ending balance (usd per share) | $ / shares 1.56
Weighted-Average Exercise Price, Vested and expected to vest at end of period (usd per share) | $ / shares 1.56
Weighted-Average Exercise Price, Exercisable at end of period (usd per share) | $ / shares $ 1.56
Weighted- Average Remaining Contractual Term  
Weighted-Average Remaining Contractual Term, Outstanding (term) 1 year 6 months 11 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest (term) 1 year 6 months 11 days
Weighted-Average Remaining Contractual Term, Exercisable (term) 1 year 6 months 11 days
Aggregate Intrinsic Value  
Aggregate Intrinsic Value, Outstanding | $ $ 0
Aggregate Intrinsic Value, Vested and expected to vest | $ 0
Aggregate Intrinsic Value, Exercisable | $ $ 0