Capital Stock, Repurchase of Common Stock (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Repurchases of Common Stock [Abstract]
Class A common stock repurchased	$ 40,028	$ 10,005	$ 60,038	$ 70,415
Amount available for repurchases	$ 185,400		$ 185,400
Treasury Stock [Member]
Repurchases of Common Stock [Abstract]
Class A common stock repurchased (in shares)	1.0	0.2	1.4	1.4
Class A common stock repurchased	$ 40,028	$ 10,005	$ 60,038	$ 70,415