Stock-Based Compensation and Employee Benefit Plan - Equity Incentive Plan (Additional Information) (Details) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of outstanding options (in shares)	24,879,709	27,949,582
Weighted average exercise price, outstanding options (in dollars per share)	$ 20.69	$ 20.76
2012 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of outstanding options (in shares)	13,530,104	16,638,850
Weighted average exercise price, outstanding options (in dollars per share)	$ 27.15
2012 Equity Incentive Plan \| Class B common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of outstanding options (in shares)	9,510,910
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of outstanding options (in shares)	9,664,887	9,454,578
Weighted average exercise price, outstanding options (in dollars per share)	$ 9.25
Shares reserved for future issuance (in shares)	22,789,740	17,233,144
2018 Equity Incentive Plan \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of outstanding options (in shares)	5,975,977
RSUs \| 2012 Equity Incentive Plan \| Class B common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares)	4,019,194
RSUs \| 2018 Equity Incentive Plan \| Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of outstanding options (in shares)	3,688,910

Aggregate number of common shares reserved for future issuance.

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