Employee and Consultant Equity-Based Compensation - Stock Option Supplemental Information (Details) $ / shares in Units, $ in Thousands	Mar. 31, 2016 USD ($) yr $ / shares shares
Options Outstanding
Number of options (shares) | shares	6,760,497
Weighted average remaining contractual term (in years) | yr	7.23
Weighted average exercise price (dollars per share)	$ 7.34
Weighted average fair value (dollars per share)	$ 5.70
Aggregate intrinsic value (in thousands) | $	$ 37,463
Options Exercisable
Number of options (shares) | shares	4,051,836
Weighted average remaining contractual term (in years) | yr	6.64
Weighted average exercise price (dollars per share)	$ 4.93
Weighted average fair value (dollars per share)	$ 3.71
Aggregate intrinsic value (in thousands) | $	$ 33,324
Options Vested and Expected to Vest
Number of options (shares) | shares	6,587,029
Weighted average remaining contractual term (in years) | yr	7.18
Weighted average exercise price (dollars per share)	$ 7.16
Weighted average fair value (dollars per share)	$ 5.55
Aggregate intrinsic value (in thousands) | $	$ 37,845