CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Cash and due from banks	$ 198,559	$ 163,895
Interest bearing deposits with other banks and other short-term investments	406,343	271,704
Cash and cash equivalents	604,902	435,599
Time deposits in other financial institutions	2,894	2,894
Securities:
Carried at fair value (cost of $7,411,885 at March 31, 2022, and $7,536,338 at December 31, 2021)	7,025,243	7,530,374
Held to maturity, net of allowance for credit losses of $0 at both March 31, 2022, and December 31, 2021 (fair value of $86,486 at March 31, 2022, and $94,139 at December 31, 2021)	81,785	84,709
Other investments, at cost	82,751	82,567
Loans held for sale	22,685	21,640
Loans receivable:
Financing Receivable, before Allowance for Credit Loss	10,177,385	9,954,572
Allowance for credit losses	(100,522)	(110,088)
Loans receivable, net	10,076,863	9,844,484
Premises, furniture and equipment, net	199,679	204,999
Premises, furniture and equipment held for sale	14,073	10,828
Other real estate, net	1,422	1,927
Goodwill	576,005	576,005
Core deposit intangibles and customer relationship intangibles, net	30,934	32,988
Servicing rights, net	8,102	6,890
Cash surrender value on life insurance	192,267	191,722
Other assets	311,274	246,923
TOTAL ASSETS	19,230,879	19,274,549
Deposits:
Demand	6,376,249	6,495,326
Savings	9,236,427	8,897,909
Time	1,054,008	1,024,020
Total deposits	16,666,684	16,417,255
Short-term borrowings	107,372	131,597
Other borrowings	372,290	372,072
Accrued expenses and other liabilities	152,676	171,447
TOTAL LIABILITIES	17,299,022	17,092,371
STOCKHOLDERS' EQUITY:
Common stock (par value $1 per share; 60,000,000 shares authorized at both March 31, 2022, and December 31, 2021; issued 42,369,908 shares at March 31, 2022, and 42,275,264 shares at December 31, 2021)	42,370	42,275
Capital surplus	1,073,048	1,071,956
Retained earnings	992,655	962,994
Accumulated other comprehensive loss	(286,921)	(5,752)
TOTAL STOCKHOLDERS' EQUITY	1,931,857	2,182,178
TOTAL LIABILITIES AND EQUITY	19,230,879	19,274,549
Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series A Junior Participating preferred stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series B Fixed Rate Cumulative Perpetual Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series C Senior Non-Cumulative Perpetual Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series D Senior Non-Cumulative Perpetual Convertible Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Series E Fixed-Rate Reset Cumulative Perpetual Preferred Stock
STOCKHOLDERS' EQUITY:
Preferred stock	$ 110,705	$ 110,705