Consolidated Statements of Financial Position - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Cash and cash equivalents:
Cash and cash due from banks	$ 223,498	$ 237,758
Interest-bearing deposits with the Federal Reserve Bank and other banks	485,713	236,644
Total cash and cash equivalents	709,211	474,402
Investment securities:
Available-for-sale, at fair value	2,029,672	1,234,964
Held-to-maturity, at amortized cost (fair value of $655,959 and $608,531, respectively)	657,176	623,427
Total investment securities	2,686,848	1,858,391
Loans held-for-sale, at fair value	87,198	81,830
Loans	13,833,368	12,990,779
Allowance for loan losses	(85,760)	(78,268)
Net loans	13,747,608	12,912,511
Premises and equipment	141,550	145,012
Loan servicing rights ($62,195 and $48,085 measured at fair value, respectively)	62,195	58,315
Goodwill	1,134,568	1,133,534
Other intangible assets	35,797	40,211
Interest receivable and other assets	749,333	650,973
Total assets	19,354,308	17,355,179
Deposits:
Noninterest-bearing	3,688,848	3,341,520
Interest-bearing	10,116,397	9,531,602
Total deposits	13,805,245	12,873,122
Interest payable and other liabilities	163,532	134,637
Securities sold under agreements to repurchase with customers	414,597	343,047
Short-term borrowings	1,900,000	825,000
Long-term borrowings	397,845	597,847
Total liabilities	16,681,219	14,773,653
Shareholders’ equity
Preferred stock, no par value: Authorized – 2,000,000 shares at 6/30/2017 and 12/31/2016, none issued	0	0
Common stock, $1.00 par value per share: Authorized — 135,000,000 shares at 6/30/2017 and 100,000,000 shares at 12/31/2016, Issued and outstanding — XX,XXX,XXX shares at 6/30/2017 and 70,599,133 shares at 12/31/2016	71,152	70,599
Additional paid-in capital	2,201,334	2,210,762
Retained earnings	425,433	340,201
Accumulated other comprehensive loss	(24,830)	(40,036)
Total shareholders’ equity	2,673,089	2,581,526
Total liabilities and shareholders’ equity	$ 19,354,308	$ 17,355,179