CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net (loss) income	$ 10,358	$ 22,502
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	7,385	5,100
Net amortization of securities	1,008	739
Change in unamortized net loan costs and premiums	(1,008)	(2,890)
Premises and equipment depreciation and amortization expense	4,037	3,610
Stock-based compensation expense	1,824	1,812
Accretion of purchase accounting entries, net	(3,479)	(8,884)
Amortization of other intangibles	2,580	2,722
Write down of other real estate owned	160
Excess tax loss from stock-based payment arrangements	(93)	(1,150)
Income from cash surrender value of bank-owned life insurance policies	(1,458)	(1,394)
Gain on sales of securities, net	(237)	(1,005)
Net (increase) decrease in loans held for sale	(4,345)	21,267
Loss on disposition of assets	715	1,596
Loss (gain) on sale of real estate	170	(67)
Loss on termination of hedges	3,237
Net change in other	3,968	(938)
Net cash provided by operating activities	24,822	43,020
Cash flows from investing activities:
Net decrease in trading security	268	253
Proceeds from sales of securities available for sale	79,550	4,591
Proceeds from maturities, calls and prepayments of securities available for sale	68,342	66,176
Purchases of securities available for sale	(447,063)	(185,300)
Proceeds from maturities, calls and prepayments of securities held to maturity	2,764	2,493
Purchases of securities held to maturity	(1,021)	(1,073)
Net change in loans	(268,616)	120,860
Proceeds from sale of Federal Home Loan Bank stock	379	2,118
Purchase of Federal Home Loan Bank stock	(9,576)
Net investment in limited partnership tax credits	(2,884)
Proceeds from the sale of premises and equipment	1,756
Purchase of premises and equipment, net	(4,302)	(7,280)
Acquisitions, net of cash paid	423,416
Proceeds from sale of other real estate	799	1,472
Net cash (used in) provided by in investing activities	(156,188)	4,310
Cash flows from financing activities:
Net increase (decrease) in deposits	189,568	(283,650)
Proceeds from Federal Home Loan Bank advances and other borrowings	2,935,035	491,360
Repayments of Federal Home Loan Bank advances and other borrowings	(2,945,250)	(258,975)
Purchase of treasury stock	(2,467)	(8,868)
Exercise of stock options	848	2,582
Excess tax loss from stock-based payment arrangements	93	1,150
Common stock cash dividends paid	(9,122)	(9,068)
Net cash provided by (used in) financing activities	168,705	(65,469)
Net change in cash and cash equivalents	37,339	(18,139)
Cash and cash equivalents at beginning of year	75,539	98,244
Cash and cash equivalents at end of year	112,878	80,105
Supplemental cash flow information:
Interest paid on deposits	9,177	10,411
Interest paid on borrowed funds	5,533	7,018
Income taxes paid, net	71	978
Acquisition of non-cash assets and liabilities:
Assets acquired	18,064
Liabilities assumed	(441,550)	(919)
Other non-cash changes:
Other net comprehensive income (loss)	10,096	(3,231)
Real estate owned acquired in settlement of loans	$ 816	$ 2,189