Stockholders' Equity - Additional Information (Details) - shares	9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Class Of Stock [Line Items]
Common stock, voting rights per share	one
Preferred stock, shares authorized	5,000,000			5,000,000
Preferred stock, shares issued	0			0
Preferred stock, shares outstanding	0			0
Class A
Class Of Stock [Line Items]
Common stock, shares authorized	500,000,000			500,000,000
Common stock, shares issued	994,690			988,555
Common stock, shares outstanding	994,690			988,555
Temporary equity, shares issued	24,005,310			24,011,445
Class F
Class Of Stock [Line Items]
Common stock, shares authorized	25,000,000			25,000,000
Common stock, shares issued	6,250,000			6,250,000
Common stock, shares outstanding	6,250,000			6,250,000
Common Stock | Class A
Class Of Stock [Line Items]
Common stock, shares outstanding	994,690	952,986	940,013	988,555	1,036,134	1,141,481	1,246,441
Temporary equity, shares issued	24,005,310			24,011,445
Common Stock | Class F
Class Of Stock [Line Items]
Common stock, shares outstanding	6,250,000	6,250,000	6,250,000	6,250,000	6,250,000	6,250,000	7,187,500	7,187,500
Preferred Stock
Class Of Stock [Line Items]
Preferred stock, shares authorized	5,000,000			5,000,000
Preferred stock, shares issued	0			0
Preferred stock, shares outstanding	0			0