CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating activities
Net income	$ 42,382	$ 36,570
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan and lease losses	5,692	5,130
Depreciation and amortization	6,479	6,388
Stock-based compensation expense	2,396	2,044
Pension expense (income)	(450)	(600)
Net amortization of premiums/accretion of discounts on investment securities	4,005	3,820
Net gains on sales of investment securities	164	(1,094)
Originations of loans held for sale	(100,437)	(133,168)
Net gains from sales of loans held for sale	(3,027)	(3,388)
Proceeds from sales of loans held for sale	113,604	126,045
Deferred income taxes	741	4,474
Bank owned life insurance income	(1,027)	(955)
Decrease (increase) in interest receivable	(1,611)	(1,097)
Decrease (increase) in indemnification asset	(3,126)	(2,328)
(Decrease) increase in interest payable	148	133
Decrease (increase) in other assets	(22,622)	(21,462)
(Decrease) increase in other liabilities	(8,034)	30,625
Net cash provided by (used in) operating activities	41,529	55,793
Investing activities
Proceeds from sales of securities available-for-sale	98,734	53,518
Proceeds from calls, paydowns and maturities of securities available-for-sale	70,842	56,808
Purchases of securities available-for-sale	(74,856)	(224,642)
Proceeds from calls, paydowns and maturities of securities held-to-maturity	53,880	75,311
Payments to Acquire Held-to-maturity Securities	0	1,820
Net decrease (increase) in interest-bearing deposits with other banks	14,823	(18,397)
Net decrease (increase) in loans and leases	(315,691)	(84,658)
Proceeds from disposal of other real estate owned	4,172	9,678
Purchases of premises and equipment	(5,023)	(3,964)
Life insurance death benefits	5,006	0
Net cash provided by (used in) investing activities	(148,113)	(138,166)
Financing activities
Net (decrease) increase in total deposits	(60,000)	60,073
Net (decrease) increase in short-term borrowings	176,659	48,657
Payments on long-term debt	0	(932)
Cash dividends paid on common stock	(19,520)	(19,502)
Proceeds from exercise of stock options	622	167
Excess tax benefit on share-based compensation	156	106
Net cash provided by (used in) financing activities	97,917	88,569
Cash and due from banks:
Change in cash and due from banks	(8,667)	6,196
Cash and due from banks at beginning of period	114,841	110,122
Cash and due from banks at end of period	$ 106,174	$ 116,318