Stockholders' Equity - Common Stock and Preferred Stock (Details)	Mar. 31, 2020 shares	Dec. 31, 2019 shares	May 31, 2019 vote $ / shares shares
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)			10,000,000.0
Preferred stock, par value (in USD per share) | $ / shares			$ 0.00002
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common Class A
Class of Stock [Line Items]
Common stock, shares authorized (in shares)			1,000,000,000.0
Common stock, par value (in USD per share) | $ / shares			$ 0.00002
Common stock, voting rights (votes per share) | vote			1
Common stock, shares issued (in shares)	71,800,000	61,000,000.0
Common stock, shares outstanding (in shares)	71,800,000	61,000,000
Common Class B
Class of Stock [Line Items]
Common stock, shares authorized (in shares)			94,100,000
Common stock, par value (in USD per share) | $ / shares			$ 0.00002
Common stock, voting rights (votes per share) | vote			10
Common stock, shares issued (in shares)	24,200,000	33,900,000
Common stock, shares outstanding (in shares)	24,200,000	33,900,000