CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable, Net of Deferred Income	$ 10,181,711	$ 9,201,665
ASSETS
Cash and due from banks	283,639	200,691
Interest-bearing deposits with other banks	38,845	56,948
Investment securities available-for-sale, at fair value (amortized cost $2,815,199 at June 30, 2020 and $2,798,298 at December 31, 2019)	2,897,413	2,852,084
Investment securities held-to-maturity (fair value $132,956 at June 30, 2020 and $142,821 at December 31, 2019)	127,347	142,862
Other investments	132,366	125,020
Loans held for sale	43,950	13,680
Loans
Total loans and leases	10,181,711	9,201,665
Loans and Leases Receivable, Allowance	158,661	57,650
Net loans and leases	10,023,050	9,144,015
Premises and equipment	211,164	214,506
Goodwill	937,771	937,771
Other Finite-Lived Intangible Assets, Gross	70,325	76,201
Accrued interest and other assets	1,105,020	747,847
Total assets	15,870,890	14,511,625
Deposits
Interest-bearing	2,657,841	2,364,881
Savings	3,287,314	2,960,979
Time	2,241,212	2,240,441
Total interest-bearing deposits	8,186,367	7,566,301
Noninterest-bearing	3,515,048	2,643,928
Total deposits	11,701,415	10,210,229
Federal funds purchased and securities sold under agreements to repurchase	154,347	165,181
FHLB short-term borrowings	0	1,151,000
Total short-term borrowings	154,347	1,316,181
Long-term debt	1,285,767	414,376
Total borrowed funds	1,440,114	1,730,557
Accrued interest and other liabilities	508,342	323,134
Total liabilities	13,649,871	12,263,920
SHAREHOLDERS' EQUITY
Common stock - no par value Authorized - 160,000,000 shares Issued - 104,281,794 shares in 2020 and 2019	1,635,070	1,640,771
Retained earnings	675,532	711,249
Accumulated other comprehensive loss	36,431	13,323
Treasury stock, at cost, 6,262,936 shares in 2020 and 5,790,796 shares in 2019	(126,014)	(117,638)
Total shareholders' equity	2,221,019	2,247,705
Total liabilities and shareholders' equity	15,870,890	14,511,625
Commercial real estate
Loans and Leases Receivable, Net of Deferred Income	4,343,702	4,194,651
Loans
Total loans and leases	4,343,702	4,194,651
Construction real estate
Loans and Leases Receivable, Net of Deferred Income	506,085	493,182
Loans
Total loans and leases	506,085	493,182
Commercial
Loans and Leases Receivable, Net of Deferred Income	3,322,374	2,465,877
Loans
Total loans and leases	3,322,374	2,465,877
Lease financing
Loans and Leases Receivable, Net of Deferred Income	80,087	88,364
Loans
Total loans and leases	80,087	88,364
Residential real estate
Loans and Leases Receivable, Net of Deferred Income	1,043,745	1,055,949
Loans
Total loans and leases	1,043,745	1,055,949
Home equity
Loans and Leases Receivable, Net of Deferred Income	764,171	771,869
Loans
Total loans and leases	764,171	771,869
Installment
Loans and Leases Receivable, Net of Deferred Income	79,150	82,589
Loans
Total loans and leases	79,150	82,589
Credit card
Loans and Leases Receivable, Net of Deferred Income	42,397	49,184
Loans
Total loans and leases	$ 42,397	$ 49,184