Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended		3 Months Ended			12 Months Ended
	Oct. 25, 2021	Feb. 12, 2021	Oct. 31, 2021	Aug. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Dec. 31, 2022
Subsequent Event [Line Items]
Percentage of convertible security converted				50.00%
Convertible security stated value				$ 20.0
Conversion price (in dollars per share)				$ 49.4
Class A, Class B and Class F Common Stock
Subsequent Event [Line Items]
Issuance of common stock warrants and options in connection with an acquisition (in shares)					405,205	6,320,688	2,479,996
Class A Common Stock | Class A, Class B and Class F Common Stock
Subsequent Event [Line Items]
Issuance of common stock warrants and options in connection with an acquisition (in shares)				405,205
Subsequent Event
Subsequent Event [Line Items]
Percentage of convertible security converted			50.00%
Convertible security stated value			$ 20.0
Conversion price (in dollars per share)			$ 61.7
Subsequent Event | Class A Common Stock | Class A, Class B and Class F Common Stock
Subsequent Event [Line Items]
Issuance of common stock warrants and options in connection with an acquisition (in shares)			324,156
Sixth Amendment Term Loan | Subsequent Event
Subsequent Event [Line Items]
New term loan	$ 1,500.0
Sixth Amendment Term Loan | Subsequent Event | KKR Capital Markets, LLC
Subsequent Event [Line Items]
Debt issuance costs paid to related party	$ 1.4
Fifth Amendment Term Loan And Revolving Credit Facility
Subsequent Event [Line Items]
Debt issuance costs paid to related party		$ 0.8
MoPub | Forecast
Subsequent Event [Line Items]
Consideration paid								$ 1,050.0