Related Party Transactions - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	2 Months Ended	12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Mar. 31, 2017
RSL | Option Agreement
Related Party Transaction [Line Items]
Option agreement, term	2 years
Option agreement, purchase price as a percent of payments made by RSL	110.00%
RSL and RSI | RSL and RSI | Services Agreement
Related Party Transaction [Line Items]
Base salary, fringe benefits, and share-based compensation		$ 0.4	$ 9.2