Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities
Net income	$ 36,859	$ 30,049
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	3,000	3,100
Gains on sales of loans	(3,375)	(1,680)
Proceeds from sales of loans	119,683	59,490
Loans originated for sale	(111,903)	(58,920)
Net gains from sales/writedowns of other real estate and repossessed assets	(1,578)	(856)
Depreciation of premises and equipment	5,239	4,238
Amortization of intangible assets	3,787	1,391
Net gains on sale of investment securities	(607)	0
Net amortization of premiums and discounts on investment securities	2,759	2,129
Share-based compensation expense	1,461	1,173
Net increase in interest receivable and other assets	(11,695)	(1,503)
Net increase (decrease) in interest payable and other liabilities	(15,727)	754
Net cash provided by operating activities	27,903	39,365
Investment securities – available-for-sale:
Proceeds from sales	13,173	0
Proceeds from maturities, calls and principal reductions	113,973	71,919
Investment securities – held-to-maturity:
Proceeds from maturities, calls and principal reductions	54,481	66,230
Purchases	(205,286)	(100,862)
Net increase in loans	(250,997)	(260,201)
Proceeds from sales of other real estate and repossessed assets	7,934	4,879
Purchases of premises and equipment, net of disposals	(3,333)	(3,221)
Cash Acquired in Excess of Payments to Acquire Business	16,551	0
Net cash used in investing activities	(253,504)	(221,256)
Financing Activities
Net increase in interest- and noninterest-bearing demand deposits and savings accounts	217,719	23,559
Net decrease in time deposits	(72,795)	(53,031)
Net increase (decrease) in short-term borrowings	103,824	(22,006)
Proceeds from (Repayments of) Other Debt	25,000	0
Cash dividends paid	(17,049)	(13,769)
Proceeds from Issuance of Common Stock	0	76,175
Proceeds from directors’ stock plans and exercise of stock options, net of shares withheld	1,462	1,163
Cash paid for payroll taxes upon conversion of share-based awards	(546)	(694)
Net cash provided by financing activities	257,615	11,397
Net increase (decrease) in cash and cash equivalents	32,014	(170,494)
Cash and cash equivalents at beginning of period	183,020	310,788
Cash and cash equivalents at end of period	215,034	140,294
Supplemental Disclosure of Cash Flow Information:
Interest paid	6,592	7,719
Loans transferred to other real estate and repossessed assets	5,908	4,639
Transfer Of Other Real Estate, Closed Branch Offices	359	0
Income Taxes Paid	20,800	12,900
Fair Value of Tangible Assets Acquired	1,284,552	0
Goodwill and Identifiable Intangible Assets Acquired	116,478	0
Liabilities Assumed	1,257,917	0
Stock Issued	$ 159,904	$ 0