Subsequent Event (Details) - USD ($)	Jan. 31, 2022	Feb. 03, 2022	Dec. 31, 2021
Subsequent Event [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 255,800,000
Subsequent Event | Class A Common Stock [Member]
Subsequent Event [Line Items]
Increase in stock repurchase program		$ 250,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 506,000,000
Subsequent Event | Millicast, Inc.
Subsequent Event [Line Items]
Cash payment to sellers	$ 39,000,000