Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets
Cash and due from banks	$ 284,147	$ 327,440
Overnight investments	1,640,264	797,406
Investment in marketable equity securities	111,489	92,599
Investment securities available for sale	4,366,041	4,557,110
Investment securities held to maturity	2,218,048	2,184,653
Loans held for sale	52,837	45,505
Loans and leases	26,728,237	25,523,276
Allowance for loan and lease losses	(226,583)	(223,712)
Net loans and leases	26,501,654	25,299,564
Premises and equipment	1,213,296	1,204,179
Other real estate owned	46,236	48,030
Income earned not collected	115,303	109,903
Goodwill recorded for First South Bancorp	296,764	236,347
Other intangible assets	69,575	72,298
Other assets	739,440	433,595
Total assets	37,655,094	35,408,629
Deposits [Abstract]
Noninterest-bearing deposits	12,950,394	11,882,670
Interest-bearing deposits	19,769,277	18,789,790
Total deposits	32,719,671	30,672,460
Securities sold under customer repurchase agreements	544,527	543,936
Debt, Long-term and Short-term, Combined Amount	197,131	193,556
Subordinated Debt	154,277	140,741
Long-term obligations	18,446	13,921
FDIC shared-loss payable	108,892	105,618
Other liabilities	337,537	249,443
Total liabilities	34,080,481	31,919,675
Shareholders' Equity
Preferred stock	0	0
Surplus	303,880	493,962
Retained earnings	3,440,284	3,218,551
Accumulated other comprehensive loss	(180,731)	(235,187)
Total shareholders' equity	3,574,613	3,488,954
Total liabilities and shareholders' equity	37,655,094	35,408,629
Class A Common Stock
Shareholders' Equity
Common stock	10,175	10,623
Class B Common Stock
Shareholders' Equity
Common stock	$ 1,005	$ 1,005