Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 274,293	$ 185,238
Interest-bearing deposits with other banks	1,787,697	651,435
Federal funds sold	823	820
Total cash and cash equivalents	2,062,813	837,493
Securities available for sale at estimated fair value (amortized cost-$2,730,350 at June 30, 2020 and $2,426,924 at December 31, 2019, allowance for credit losses of $0 at June 30, 2020)	2,799,941	2,437,296
Securities held to maturity, net of allowance for credit losses of $14 at June 30, 2020 (estimated fair value-$1,220 at June 30, 2020 and $1,447 at December 31, 2019)	1,221	1,446
Equity securities at estimated fair value	9,875	8,894
Other investment securities	251,161	222,161
Loans held for sale (at fair value-$611,277 at June 30, 2020 and $384,375 at December 31, 2019)	625,984	387,514
Loans and leases	18,032,554	13,713,548
Less: Unearned income	(40,152)	(1,419)
Loans and leases, net of unearned income	17,992,402	13,712,129
Less: Allowance for loan and lease losses	(215,121)	(77,057)
Net loans and leases	17,777,281	13,635,072
Bank premises and equipment	181,238	96,644
Operating lease right-of-use assets	70,655	57,783
Goodwill	1,794,779	1,478,014
Mortgage servicing rights, net of valuation allowance	20,200	0
Accrued interest receivable	67,761	58,085
Other assets	572,064	441,922
TOTAL ASSETS	26,234,973	19,662,324
Deposits:
Noninterest-bearing	7,096,574	4,621,362
Interest-bearing	12,797,269	9,231,059
Total deposits	19,893,843	13,852,421
Borrowings:
Securities sold under agreements to repurchase	176,168	124,654
Federal Home Loan Bank ("FHLB")borrowings	1,354,879	1,851,865
Other long-term borrowings	279,012	236,164
Reserve for lending-related commitments	11,946	1,733
Operating lease liabilities	74,435	61,342
Accrued expenses and other liabilities	246,835	170,312
TOTAL LIABILITIES	22,037,118	16,298,491
Shareholders' Equity
Preferred stock, $1.00 par value; Authorized-50,000,000 shares, none issued	0	0
Common stock, $2.50 par value; Authorized-200,000,000 shares; issued-133,716,280 and 105,494,290 at June 30, 2020 and December 31, 2019, respectively, including 3,960,885 and 3,940,619 shares in treasury at June 30, 2020 and December 31, 2019, respectively	334,291	263,736
Surplus	2,890,394	2,140,175
Retained earnings	1,100,097	1,132,579
Accumulated other comprehensive gain (loss)	11,504	(34,869)
Treasury stock, at cost	(138,431)	(137,788)
TOTAL SHAREHOLDERS' EQUITY	4,197,855	3,363,833
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 26,234,973	$ 19,662,324