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Stockholders' Equity Restricted Stock Unit Activity (Details) | 12 Months Ended |
--- | --- | ---
Mar. 31, 2016 $ / shares shares | Mar. 31, 2015 $ / shares shares | Mar. 31, 2014 $ / shares shares | Mar. 31, 2013
Stockholders Equity Restricted Stock Unit Activity Details |  |  |  |
Balance at beginning of period | shares | 2,698,686 | 1,134,856 | 25,000 |
Granted | shares | 2,681,997 | 1,965,786 | 1,291,200 |
Vested | shares | (589,788) | (187,788) | (133,000) |
Forfeited | shares | (246,096) | (214,168) | (48,344) |
Balance at end of period | shares | 4,544,799 | 2,698,686 | 1,134,856 |
RSU weighted-average remaining contractual term, in years | 1.67 | 1.88 | 2.00 | 2.47
Beginning of period, weighted-average purchase price | $ / shares | $ 7.33 | $ 9.00 | $ 6.91 |
Granted, weighted-average purchase price | $ / shares | 8.78 | 6.68 | 9.11 |
Vested, weighted-average purchase price | $ / shares | 7.79 | 9.54 | 9.49 |
Forfeited, weighted-average purchase price | $ / shares | 8.15 | 8.30 | 9.61 |
End of period, weighted-average purchase price | $ / shares | $ 8.08 | $ 7.33 | $ 9.00 |

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