Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks, including interest bearing amounts of $550,008 and $721,086, respectively	$ 759,048	$ 905,447
Securities:
Equity securities, at fair value	13,123	13,047
Available-for-sale debt securities, at fair value	2,775,212	1,978,136
Held-to-maturity debt securities (fair values of $839,872 and $768,183, respectively)	813,740	731,212
Allowance for credit losses, held-to-maturity debt securities	(290)	(326)
Net held-to-maturity debt securities	813,450	730,886
Total securities	3,601,785	2,722,069
Loans held for sale	153,520	168,378
Portfolio loans, net of unearned income	10,703,312	10,789,233
Allowance for credit losses - loans	(160,040)	(185,827)
Net portfolio loans	10,543,272	10,603,406
Premises and equipment, net	239,863	249,421
Accrued interest receivable	68,896	66,790
Goodwill and other intangible assets, net	1,160,195	1,163,091
Bank-owned life insurance	307,747	306,038
Other assets	223,462	240,970
Total Assets	17,057,788	16,425,610
Deposits:
Non-interest bearing demand	4,460,049	4,070,835
Interest bearing demand	3,126,186	2,839,536
Money market	1,771,703	1,685,927
Savings deposits	2,373,987	2,214,565
Certificates of deposit	1,555,074	1,618,510
Total deposits	13,286,999	12,429,373
Federal Home Loan Bank borrowings	433,984	549,003
Other short-term borrowings	137,218	241,950
Subordinated debt and junior subordinated debt	192,430	192,291
Total borrowings	763,632	983,244
Accrued interest payable	3,224	4,314
Other liabilities	218,411	251,942
Total Liabilities	14,272,266	13,668,873
SHAREHOLDERS' EQUITY
Preferred stock, no par value, 1,000,000 shares authorized; 150,000 shares 6.75% non-cumulative perpetual preferred stock, Series A, liquidation preference $150,000,000, issued and outstanding at March 31, 2021 and December 31, 2020, respectively	144,484	144,484
Common stock, $2.0833 par value; 100,000,000 shares authorized; 68,081,306 shares issued; 67,282,134 and 67,254,706 shares outstanding at March 31, 2021 and December 31, 2020, respectively	141,834	141,834
Capital surplus	1,636,103	1,634,815
Retained earnings	879,786	831,688
Treasury stock (799,172 and 826,600 shares - at cost, respectively)	(24,989)	(25,949)
Accumulated other comprehensive income	9,803	31,359
Deferred benefits for directors	(1,499)	(1,494)
Total Shareholders' Equity	2,785,522	2,756,737
Total Liabilities and Shareholders' Equity	$ 17,057,788	$ 16,425,610