Quarterly report pursuant to Section 13 or 15(d)

NET LOSS PER SHARE - Narrative (Details)

v3.2.0.727
NET LOSS PER SHARE - Narrative (Details) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Apr. 24, 2014
Stock options      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share 4.8 7.8  
Restricted stock      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share 13.1 11.2  
4.50% convertible subordinated notes      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share 42.5 42.5  
Interest rate, per annum on the principal amount 4.50%    
Antidilutive income excluded from computation of earnings per share $ 0.9 $ 0.9  
3.50% convertible subordinated notes      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Antidilutive securities excluded from computation of earnings per share 19.3 30.9  
Interest rate, per annum on the principal amount 3.50%   3.50%
Antidilutive income excluded from computation of earnings per share $ 0.9 $ 1.4