Combined Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015
Class A common stock
Common stock, par value per share (in dollars per share)	$ 0.001
Common stock, authorized shares	600,000,000
Common stock, issued shares	52,958,455
Common stock, outstanding shares	52,958,455
Class B common stock
Common stock, authorized shares	100,000,000
Common stock, issued shares	46,594,153
Common stock, outstanding shares	46,594,153
Common stock, no par value (in dollars per share)	$ 0.001