Parent Company Financial Information (Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash	$ 262,458	$ 153,414
Interest-earning deposits	29,283	671,300
Total cash and cash equivalents	291,741	824,714
Goodwill	823,172	823,172	$ 765,842	$ 765,842
Other assets	684,641	455,092
Total Assets	20,265,843	20,945,333
Liabilities and Shareholders’ Equity
Subordinated Debentures	10,000	10,000
Junior Subordinated Notes	10,310	10,310
Other liabilities	271,447	232,794
Total liabilities	18,052,690	18,356,591
Shareholders’ equity	2,213,153	2,588,742	2,347,607	2,159,962
Total liabilities and shareholders' equity	20,265,843	20,945,333
Parent Company
Assets
Cash	8,514	1,979
Interest-earning deposits	0	3,786
Total cash and cash equivalents	8,514	5,765	$ 7,234	$ 27,805
Investment in banking subsidiary	2,215,486	2,589,218
Investment in other subsidiaries	7,942	7,175
Goodwill	4,729	4,729
Other assets	3,169	2,525
Total Assets	2,239,840	2,609,412
Liabilities and Shareholders’ Equity
Subordinated Debentures	10,000	10,000
Junior Subordinated Notes	10,310	10,310
Other liabilities	6,377	360
Total liabilities	26,687	20,670
Shareholders’ equity	2,213,153	2,588,742
Total liabilities and shareholders' equity	$ 2,239,840	$ 2,609,412