CONSOLIDATED BALANCE SHEETS (Parenthetical)	Dec. 31, 2018 $ / shares shares
Class A Common Stock
Common stock, par value (in USD per share) | $ / shares	$ 0.0001
Common stock, shares authorized (in shares	1,500,000,000
Common stock, shares issued (in shares)	74,929,305
Common stock, shares outstanding (in shares)	74,929,305
Class C Common Stock
Common stock, par value (in USD per share) | $ / shares	$ 0.0001
Common stock, shares authorized (in shares	1,500,000,000
Common stock, shares issued (in shares)	250,000,000
Common stock, shares outstanding (in shares)	250,000,000