|
SHARE-BASED COMPENSATION (Details 7) (USD $)
|
12 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
Mar. 31, 2013
|
| Share-based compensation |
|
|
|
| Shares issued |
15,000 |
|
19,000 |
| Average exercise price of options issued ( in dollars per share) |
$ 11.11 |
|
$ 6.57 |
| Shares available for grants |
34,600,000 |
|
|
| Expected Dividend (as a percent) |
0.00% |
0.00% |
0.00% |
| Stock-based compensation |
$ 50,270,000 |
$ 40,439,000 |
$ 34,529,000 |
| option activity |
|
|
|
| Outstanding, beginning of fiscal year, Options (in shares) |
23,612,872 |
34,405,564 |
43,933,660 |
| Granted (in shares) |
15,000 |
|
19,000 |
| Exercised, Options (in shares) |
(3,600,900) |
(6,572,383) |
(5,398,331) |
| Forfeited, Options (in shares) |
(4,034,078) |
(4,220,309) |
(4,148,765) |
| Outstanding, end of fiscal year, Options (in shares) |
15,992,894 |
23,612,872 |
34,405,564 |
| Outstanding, beginning of fiscal year, Price (in dollars per share) |
$ 8.57 |
$ 8.29 |
$ 7.78 |
| Granted, Price (in dollars per share) |
$ 11.11 |
|
$ 6.57 |
| Exercised, Price (in dollars per share) |
$ 6.53 |
$ 4.28 |
$ 4.12 |
| Forfeited, Price (in dollars per share) |
$ 13.17 |
$ 12.93 |
$ 8.32 |
| Outstanding, end of fiscal year, Price (in dollars per share) |
$ 7.81 |
$ 8.57 |
$ 8.29 |
| Weighted average assumptions |
|
|
|
| Expected Dividend (as a percent) |
0.00% |
0.00% |
0.00% |
| Elementum |
|
|
|
| Share-based compensation |
|
|
|
| Unrecognized compensation expenses will be recognized over a weighted average period |
3 years 3 months 15 days |
|
|
| Options |
|
|
|
| Share-based compensation |
|
|
|
| Shares issued |
|
0 |
|
| Weighted average fair value (in dollars per share) |
$ 4.85 |
|
$ 2.48 |
| Vesting period |
4 years |
|
|
| Expiration period of options issued |
7 years |
|
7 years |
| Expected Dividend (as a percent) |
0.00% |
|
0.00% |
| option activity |
|
|
|
| Granted (in shares) |
|
0 |
|
| Weighted average assumptions |
|
|
|
| Expected term |
6 years 3 months 18 days |
|
4 years 1 month 6 days |
| Expected volatility (as a percentage) |
46.90% |
|
46.90% |
| Expected Dividend (as a percent) |
0.00% |
|
0.00% |
| Risk-free interest rate (as a percentage) |
2.30% |
|
0.90% |
| Options | Elementum |
|
|
|
| Share-based compensation |
|
|
|
| Vesting period |
4 years |
|
|
| Expiration period of options issued |
10 years |
|
|
| Shares available for grants |
5,000,000 |
|
|
| Total unrecognized compensation expenses |
$ 2,100,000 |
|
|
| option activity |
|
|
|
| Outstanding, end of fiscal year, Options (in shares) |
16,000,000 |
|
|
| Outstanding, end of fiscal year, Price (in dollars per share) |
$ 0.27 |
|
|