Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended
		Sep. 30, 2017	Sep. 30, 2017
Numerator for basic and diluted earnings per share
Net income (loss)		$ (19,115)	$ (17,433)
Denominator for basic earnings per share
Basic for Class A and Class B		44,982,142	44,982,142
Denominator for diluted earnings per share
Diluted for Class A and Class B		44,982,142	44,982,142
Earnings per share
Basic for Class A and Class B		$ (0.42)	$ (0.39)
Diluted for Class A and Class B		$ (0.42)	$ (0.39)
Unvested Restricted Stock Awards
Participating securities excluded from earnings per share calculations
Unvested restricted stock awards		1,796,943	1,796,943
Warrants
Antidilutive securities excluded from earnings per share calculations
Warrants	[1]	140,023	140,023

[1] The warrants to purchase shares of our Class A common stock are antidilutive due to the exercise price exceeding the average price of our Class A shares for the periods presented and due to the net losses we incurred.