Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
OPERATING ACTIVITIES
Net income	$ 31,023	$ 28,753
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	3,266	(845)
Provision for unfunded loan commitments	605	182
Depreciation, amortization and accretion	388	2,309
Net amortization of discounts and premiums on securities	1,802	1,898
Stock-based compensation expense	769	395
Securities losses (gains), net	34	(41)
Tax benefit from stock-based compensation	(29)	0
Mortgage loans originated for sale	(52,075)	(13,057)
Proceeds from the sale of loans	42,008	13,475
Gain on the sale of loans, net	(597)	(85)
Net increase in interest receivable	(2,542)	(243)
Net decrease in interest payable	(475)	(186)
Net decrease in other assets	1,854	10,016
Net (decrease) increase in other liabilities	(811)	1,199
Net Cash Provided by Operating Activities	25,220	43,770
INVESTING ACTIVITIES
Purchases of securities available-for-sale	(54,754)	(108,845)
Proceeds from maturities, prepayments and calls of securities available-for-sale	26,096	36,343
Proceeds from sales of securities available-for-sale	11,119	1,418
Net purchases of Federal Home Loan Bank stock	(334)	(2,189)
Net increase in loans	(141,911)	(169,209)
Proceeds from sale of loans not originated for resale	0	4,108
Purchases of premises and equipment	(2,465)	(1,719)
Proceeds from the sale of premises and equipment	27	64
Net cash paid in excess of cash acquired from bank merger	(16,347)	0
Net Cash Used in Investing Activities	(178,569)	(240,029)
FINANCING ACTIVITIES
Net increase in core deposits	297,340	141,888
Net (decrease) increase in certificates of deposit	(68,397)	50,972
Net increase (decrease) in securities sold under repurchase agreements	15,630	(8,578)
Net (decrease) increase in short-term borrowings	(127,686)	45,000
Proceeds from long-term borrowings	100,000	0
Repayments of long-term borrowings	(1,214)	(1,174)
Repayment of junior subordinated debt	(13,500)	0
Treasury shares issued-net	(111)	(160)
Issuance costs	(132)	0
Cash dividends paid to common shareholders	(11,608)	(9,810)
Tax benefit from stock-based compensation	29	0
Net Cash Provided by Financing Activities	190,351	218,138
Net increase in cash and cash equivalents	37,002	21,879
Cash and cash equivalents at beginning of period	109,580	108,356
Cash and Cash Equivalents at End of Period	146,582	130,235
Supplemental Disclosures
Loans transferred to held for sale	0	1,300
Interest paid	7,619	6,278
Income taxes paid, net of refunds	9,275	8,400
Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed)	43,433
Net assets acquired from bank merger, excluding cash and cash equivalents		0
Transfers of loans to other real estate owned	$ 137	$ 274