Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 288,933	$ 327,440
Overnight investments	949,899	797,406
Investment in marketable equity securities	116,854	92,599
Investment securities available for sale	4,904,883	4,557,110
Investment securities held to maturity	2,145,943	2,184,653
Loans held for sale	83,256	45,505
Loans and leases	27,196,511	25,523,276
Allowance for loan and lease losses	(226,825)	(223,712)
Net loans and leases	26,969,686	25,299,564
Premises and equipment	1,222,659	1,204,179
Other real estate owned	46,253	48,030
Income earned not collected	117,123	109,903
Goodwill recorded for First South Bancorp	296,764	236,347
Other intangible assets	65,147	72,298
Other assets	540,924	433,595
Total assets	37,748,324	35,408,629
Deposits [Abstract]
Noninterest-bearing deposits	12,966,890	11,882,670
Interest-bearing deposits	19,776,387	18,789,790
Total deposits	32,743,277	30,672,460
Securities sold under customer repurchase agreements	522,195	543,936
Federal Home Loan Bank borrowings	192,672	193,556
Subordinated Debt	149,051	140,741
Long-term obligations	112,153	13,921
FDIC shared-loss payable	110,586	105,618
Other liabilities	349,908	249,443
Total liabilities	34,179,842	31,919,675
Shareholders' Equity
Preferred stock	0	0
Surplus	168,790	493,962
Retained earnings	3,560,580	3,218,551
Accumulated other comprehensive loss	(171,772)	(235,187)
Total shareholders' equity	3,568,482	3,488,954
Total liabilities and shareholders' equity	37,748,324	35,408,629
Class A Common Stock
Shareholders' Equity
Common stock	9,879	10,623
Class B Common Stock
Shareholders' Equity
Common stock	$ 1,005	$ 1,005