Goodwill and Other Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill balance, period start	$ 1,237,894	$ 1,191,259
Acquisitions	260,863	46,624
Acquisition fair value adjustment	231	11
Goodwill balance, period end	$ 1,498,988	$ 1,237,894