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Earnings Per Common Share (Schedule of Earnings Per Share Basic and Diluted) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share [Abstract]      
Net income $ 146,151 $ 74,327 $ 53,841
Non-convertible preferred stock (Series A, B, and D) (1,255) (6,512) (6,512)
Income available to common shareholders $ 144,896 $ 67,815 $ 47,329
Average common shares outstanding (in shares) 50,956 51,358 51,335
Average potential common shares-options (in shares) 414 197 384
Total weighted average common shares outstanding and equivalents (in shares) 51,370 51,555 51,719
Earnings per common share - basic (in dollars per share) $ 2.85 $ 1.32 $ 0.92
Earnings per common share - diluted (in dollars per share) $ 2.81 $ 1.32 $ 0.92