Restatement - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2015	Mar. 31, 2016	Feb. 28, 2015	Aug. 31, 2015	Nov. 30, 2014	Nov. 30, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)	$ 7.0	$ 5.1	$ (3.3)
Net loss per share (in USD per share)			$ (0.06)
Restatement Adjustment [Member]
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)			$ 0.6	$ (0.3)	$ 3.0	$ (5.0)
Net loss per share (in USD per share)			$ 0.01	$ 0.00	$ 0.06	$ 0.06