Earnings Per Share Summary of Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic	$ 153,945	$ 127,923	$ 102,700
Weighted Average Number of Shares Outstanding, Basic	16,291,016	16,302,825	16,234,342
Weighted Average Number Diluted Shares Outstanding Adjustment	134,190	104,677	95,114
Weighted Average Number of Shares Outstanding, Diluted	16,425,206	16,407,502	16,329,456
Basic (in dollars per share)	$ 9.45	$ 7.85	$ 6.33
Diluted (in dollars per share)	$ 9.37	$ 7.80	$ 6.29