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
Beginniing of period, weighted-average purchase price | $ / shares	$ 9.00	$ 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	$ 6.91