BASIS OF PRESENTATION - Reclassifications (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Termination and access fees
Reclassification, decrease (increase) to expense	$ 1.2
Engineering and operations expenses
Reclassification, decrease (increase) to expense	(0.7)
Selling and marketing expense
Reclassification, decrease (increase) to expense	(0.6)
General and administrative expense
Reclassification, decrease (increase) to expense	$ 0.1