Stockholders' Deficit and Capital Stock - Narrative (Details) $ / shares in Units, $ in Millions					1 Months Ended						2 Months Ended	12 Months Ended
	Jan. 06, 2020 shares	Dec. 20, 2019 shares	Jun. 18, 2019 USD ($) shares	Jun. 17, 2019 shares	Apr. 30, 2017 USD ($)	Mar. 31, 2016 series $ / shares Rate shares	Oct. 31, 2015 USD ($) shares	Aug. 31, 2014 USD ($)	Apr. 30, 2014 USD ($)	Oct. 31, 2013 USD ($)	May 31, 2016 USD ($)	Feb. 02, 2020 vote shares	Feb. 03, 2019 shares
Class of Stock [Line Items]
Common stock outstanding (in shares) | shares				100
Common stock conversion ratio			1
Underwriting discounts and commissions			$ 6.2
Number of series | series						10
Convertible redeemable preferred stock par value (in dollars per share) | $ / shares						$ 0.01
Sale of Series A Convertible Redeemable Preferred Units
Class of Stock [Line Items]
Sale of stock										$ 15.0
Underwriting discounts and commissions										$ 1.3
Sale of Series B Convertible Redeemable Preferred Units
Class of Stock [Line Items]
Sale of stock									$ 30.0
Underwriting discounts and commissions									$ 0.1
Sale of Series C Convertible Redeemable Preferred Units
Class of Stock [Line Items]
Sale of stock								$ 41.0
Underwriting discounts and commissions								$ 0.1
Sale of Series D Convertible Redeemable Preferred Units
Class of Stock [Line Items]
Sale of stock							$ 75.0
Underwriting discounts and commissions							$ 1.7
Sale of Series E Convertible Redeemable Preferred Stock
Class of Stock [Line Items]
Sale of stock											$ 75.0
Underwriting discounts and commissions											$ 0.1
Sale of Series F Convertible Redeemable Preferred Stock
Class of Stock [Line Items]
Sale of stock					$ 125.0
Class B common stock
Class of Stock [Line Items]
Common stock outstanding (in shares) | shares			345,125,000									334,922,454	0
Conversion of stock (in shares) | shares	(3,850,000)	(6,352,546)	(47,875,000)	393,000,000
Common stock conversion ratio												1
Common stock number of votes per share | vote												10
Percentage of outstanding stock												7.50%
Class A common stock
Class of Stock [Line Items]
Common stock outstanding (in shares) | shares			53,475,000									66,445,422	0
Conversion of stock (in shares) | shares	3,850,000	6,352,546	47,875,000
Common stock number of votes per share | vote												1
Series A-1 convertible redeemable preferred units
Class of Stock [Line Items]
Issued (in shares) | shares						27,273	2,727,260
Convertible Redeemable Preferred Stock
Class of Stock [Line Items]
Reverse share split ratio | Rate						1.00%