Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Securities, Available-for-sale, Amortized Cost	$ 6,447,510	$ 4,177,179
Loans Held-for-sale, fair Value	$ 34,122	$ 79,585
Common stock, par value	$ 0.01	$ 0.01
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	142,532,116	142,161,834
Treasury stock, shares	936,897	938,591