Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities
Net income	$ 45,649	$ 24,565
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses	7,762	12,060
Depreciation and amortization of premises and equipment	4,105	3,828
Net accretion on securities	1,883	2,811
Amortization of intangible assets	2,546	2,202
Stock based compensation	2,082	2,726
Increase in surrender value of bank owned life insurance	(1,392)	(1,735)
Purchases of trading securities	(1,485)	(949)
Unrealized (gains) losses in trading securities	(91)	(225)
Deferred income tax benefit	(1,654)	(519)
Proceeds from sale of loans held for sale	1,922	39,060
Originations and purchases of loans held for sale	(3,701)	(40,233)
Net gains on sales of loans held for sale	(3)	(817)
Net security gains	(21)	(1,084)
Net gains on sales of other real estate owned	(212)	(571)
Gains on bank owned life insurance settlement	(414)	0
Gain on the sale of equity investment	(19,401)	0
Prepayment penalties on long-term debt	4,554	0
Net decrease in other assets	9,261	9,144
Net decrease in other liabilities	(8,421)	(8,333)
Net cash provided by operating activities	42,969	41,930
Investing activities
Net cash used in acquisitions	0	80,909
Securities available for sale:
Proceeds from maturities, calls, and principal paydowns	119,680	234,543
Proceeds from sales	0	26,236
Purchases	(116,594)	(219,000)
Securities held to maturity:
Proceeds from maturities, calls, and principal paydowns	14,835	16,822
Purchases	(17,363)	(71,988)
Proceeds from FHLB stock redemption	37,179	0
Purchases of Federal Reserve and FHLB stock	(39,408)	(5,584)
Net increase in loans	(174,358)	(119,872)
Proceeds from settlement of bank owned life insurance	765	0
Purchases of premises and equipment	(3,498)	(2,272)
Proceeds from sales of other real estate owned	19,639	0
Proceeds from the sale of equity investment	1,919	2,122
Net cash used in investing activities	(157,204)	(58,084)
Financing activities
Net increase (decrease) in deposits	152,364	(19,593)
Net increase in short-term borrowings	78,436	201,066
Issuance of long-term debt	120,000	0
Repayments of long-term debt	(194,785)	(163,307)
Proceeds from the issuance of shares to employee benefit plans and other stock plans	1,128	(965)
Purchase of treasury stock	(72)	(5,460)
Cash dividends and payment for fractional shares	(18,425)	(15,568)
Net cash provided by (used in) financing activities	138,646	(3,827)
Net increase (decrease) in cash and cash equivalents	24,411	(19,981)
Cash and cash equivalents at beginning of period	158,926	163,668
Cash and cash equivalents at end of period	183,337	143,687
Cash paid during the period for:
Interest	13,405	16,853
Income taxes paid	19,496	4,525
Noncash investing activities:
Loans transferred to other real estate owned	785	3,031
Acquisitions:
Fair value of assets acquired	0	1,503,810
Fair value of liabilities assumed	$ 0	$ 1,284,038