Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks, including interest bearing amounts of $410,734 and $51,891, respectively	$ 593,872	$ 234,796
Securities:
Equity securities, at fair value	11,230	12,343
Available-for-sale debt securities, at fair value	2,262,082	2,393,558
Held-to-maturity debt securities (fair values of $841,120 and $874,523, respectively)	814,414	851,753
Allowance for credit losses, held-to-maturity debt securities	(236)
Net held-to-maturity debt securities	814,178	851,753
Total securities	3,087,490	3,257,654
Loans held for sale	48,021	43,013
Portfolio loans, net of unearned income	10,349,596	10,267,985
Allowance for credit losses - loans	(114,272)	(52,429)
Net portfolio loans	10,235,324	10,215,556
Premises and equipment, net	258,200	261,014
Accrued interest receivable	43,960	43,648
Goodwill and other intangible assets, net	1,170,070	1,149,153
Bank-owned life insurance	301,270	299,516
Other assets	257,365	215,762
Total Assets	15,995,572	15,720,112
Deposits:
Non-interest bearing demand	3,191,713	3,178,270
Interest bearing demand	2,388,406	2,316,855
Money market	1,539,835	1,518,314
Savings deposits	1,984,057	1,934,647
Certificates of deposit	1,939,321	2,055,920
Total deposits	11,043,332	11,004,006
Federal Home Loan Bank borrowings	1,585,608	1,415,615
Other short-term borrowings	333,966	282,362
Subordinated debt and junior subordinated debt	192,008	199,869
Total borrowings	2,111,582	1,897,846
Accrued interest payable	7,667	8,077
Other liabilities	246,931	216,262
Total Liabilities	13,409,512	13,126,191
SHAREHOLDERS' EQUITY
Preferred stock, no par value; 1,000,000 shares authorized; none outstanding
Common stock, $2.0833 par value; 100,000,000 shares authorized in 2020 and 2019, respectively; 68,078,116 and 68,078,116 shares issued, respectively; 67,058,155 and 67,824,428 shares outstanding, respectively	141,827	141,827
Capital surplus	1,638,122	1,636,966
Retained earnings	800,064	824,694
Treasury stock (1,019,961 and 253,688 shares - at cost, respectively)	(33,714)	(9,463)
Accumulated other comprehensive income	41,141	1,201
Deferred benefits for directors	(1,380)	(1,304)
Total Shareholders' Equity	2,586,060	2,593,921
Total Liabilities and Shareholders' Equity	$ 15,995,572	$ 15,720,112