Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	Feb. 01, 2022	Dec. 31, 2021	Aug. 31, 2021	Jul. 30, 2021	Feb. 28, 2021
Note Payable
Subsequent Event
Maximum loan amount		$ 1,300,000
Common Class A [Member]
Securities Repurchase Agreements
Authorized stock repurchase amount			$ 2,000,000		$ 1,000,000
Syndicated Repurchase Agreement
Subsequent Event
Maximum aggregate purchase price				$ 500,000
Syndicated Repurchase Agreement SAR
Subsequent Event
Maximum aggregate purchase price				$ 600,000
Subsequent Event
Subsequent Event
Dividends declared (in dollars per share)	$ 0.20