Earnings Per Common Share (Computation Of Basic And Diluted Earnings (Loss) Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net Income (Loss)		$ 348,715	$ 336,752	$ 420,300
Weighted average number of common shares outstanding - basic (1)	[1]	195,304	129,277	130,499
Effect of potentially dilutive common shares		567	455	531
Weighted average number of common shares outstanding - diluted (1)	[1]	195,871	129,732	131,030
Earnings per common share (1):
Basic earnings per common share (usd per share)	[1]	$ 1.79	$ 2.60	$ 3.22
Diluted earnings per common share (usd per share)	[1]	$ 1.78	$ 2.60	$ 3.21

[1] Periods prior to February 28, 2023 have been restated as a result of the adjustment to common shares outstanding based on the exchange ratio from the Merger of 0.5958.