Summary of Significant Accounting Policies (Summary of Changes in Goodwill) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill balance, beginning of year	$ 62,840,000	$ 62,840,000
Goodwill acquired	50,995,000
Goodwill balance, end of year	$ 113,835,000	$ 62,840,000