Consolidated Balance Sheets - USD ($)	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
ASSETS
CASH AND DUE FROM BANKS	$ 208,277,000	$ 293,286,000	$ 227,298,000
INTEREST-BEARING DEMAND DEPOSITS IN BANKS	180,008,000	37,392,000	138,484,000
Total cash and cash equivalents	388,285,000	330,678,000	365,782,000
SECURITIES AVAILABLE-FOR-SALE, at fair value (amortized cost of these securities was $5,463,186, $6,546,471 and $6,152,348 as of September 30, 2023 and 2022, and December 31, 2022, respectively)	4,652,537,000	5,474,359,000	5,745,443,000
LOANS:
Held-for-investment, excluding PPP loans	6,994,574,000	6,441,699,000	6,255,286,000
PPP loans	122,000	169,000	202,000
Total loans held-for-investment	6,994,696,000	6,441,868,000	6,255,488,000
Less—allowance for credit losses	(89,714,000)	(75,834,000)	(74,108,000)
Net loans held for investment	6,904,982,000	6,366,034,000	6,181,380,000
Held-for-sale ($11,908, $15,892 and $10,497 at fair value September 30, 2023 and 2022, and December 31, 2022, respectively)	12,229,000	11,965,000	18,815,000
BANK PREMISES AND EQUIPMENT, net	152,936,000	152,973,000	152,646,000
INTANGIBLE ASSETS, net	314,850,000	315,534,000	315,833,000
OTHER ASSETS	351,599,000	322,523,000	330,445,000
Total assets	12,777,418,000	12,974,066,000	13,110,344,000
LIABILITIES AND SHAREHOLDERS' EQUITY
NONINTEREST-BEARING DEPOSITS	3,477,553,000	4,061,788,000	4,200,792,000
INTEREST-BEARING DEPOSITS	7,238,970,000	6,943,719,000	6,941,326,000
Total deposits	10,716,523,000	11,005,507,000	11,142,118,000
DIVIDENDS PAYABLE	25,730,000	24,278,000	0
BORROWINGS	751,544,000	642,507,000	774,581,000
TRADE DATE PAYABLE	2,500,000	0	0
OTHER LIABILITIES	41,011,000	36,037,000	61,030,000
Total liabilities	11,537,308,000	11,708,329,000	11,977,729,000
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY:
COMMON STOCK - ($0.01 par value, authorized 200,000,000 shares; 142,677,069, 142,628,163 and 142,657,871 shares issued at , September 30, 2023 and 2022, and December 31, 2022, respectiveley	1,427,000	1,427,000	1,426,000
CAPITAL SURPLUS	679,374,000	677,593,000	676,067,000
RETAINED EARNINGS	1,199,243,000	1,121,945,000	1,087,543,000
TREASURY STOCK (shares at cost: 926,723, 933,152 and 929,210 at September 30, 2023 and 2022, and December 31, 2022, respectively)	(11,658,000)	(11,035,000)	(10,907,000)
DEFERRED COMPENSATION	11,658,000	11,035,000	10,907,000
ACCUMULATED OTHER COMPREHENSIVE EARNINGS (LOSS), net	(639,934,000)	(535,228,000)	(632,421,000)
Total shareholders' equity	1,240,110,000	1,265,737,000	1,132,615,000
Total liabilities and shareholders' equity	$ 12,777,418,000	$ 12,974,066,000	$ 13,110,344,000