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 income	$ 66,623	$ 54,957
Adjustments to reconcile net income to cash provided by operating activities:
Provision for credit losses	4,007	8,920
Depreciation and amortization	3,220	3,077
Stock-based compensation	4,498	2,791
Deferred income taxes and income taxes receivable	(6,665)	(20,690)
Net amortization of discounts and premiums for investment securities	4,048	5,174
Accretion and amortization of fair market value adjustments due to acquisitions	(9,155)	(5,466)
Income from bank owned life insurance	(1,908)	(2,072)
(Gains) / losses on:
Sales of securities, AFS	(203)	(143)
Acquisition of Centennial Bank	0	10,044
Other assets acquired through foreclosure, net	(1,179)	(2,096)
Valuation adjustments of other repossessed assets, net	293	1,582
Sale of premises and equipment and other assets, net	(1,477)	(91)
Changes in:
Other assets	8,946	23,950
Other liabilities	(11,568)	22,909
Fair value of assets and liabilities measured at fair value	1,041	3,761
Net cash provided by operating activities	60,521	86,519
Investment securities - measured at fair value
Principal pay downs and maturities	261	1,006
Investment securities - AFS
Purchases	(38,785)	(180,293)
Principal pay downs and maturities	124,615	113,056
Proceeds from sales	26,840	14,054
Investment securities - HTM
Principal pay downs and maturities	6,600	0
Purchase of investment tax credits	(16,948)	(11,742)
Sale / (purchase) of money market investments, net	1,225	(1,637)
Liquidation (purchase) of restricted stock	4,911	(228)
Loan fundings and principal collections, net	(719,720)	(336,717)
Sale and purchase of premises and equipment, net	(5,491)	(1,128)
Proceeds from sale of other real estate owned and repossessed assets, net	14,732	18,157
Cash and cash equivalents acquired in acquisition, net	0	21,204
Net cash used in investing activities	(601,760)	(364,268)
Cash flows from financing activities:
Net increase in deposits	631,609	207,632
Increase (Decrease) in Payables under Repurchase Agreements	(17,504)	(27,168)
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase	0	129,499
Net increase in borrowings	0	145,000
Repayment on other borrowings	3,000	0
Proceeds from exercise of common stock options	1,996	1,819
Cash dividends paid on preferred stock	(705)	(705)
Net cash provided by financing activities	615,007	456,077
Net increase in cash and cash equivalents	73,768	178,328
Cash and cash equivalents at beginning of year	305,514	204,625
Cash and cash equivalents at end of period	379,282	382,953
Cash paid during the period for:
Interest	10,423	9,497
Income taxes	17,180	11,575
Non-cash investing and financing activities:
Transfers to other assets acquired through foreclosure, net	6,419	11,273
Unfunded commitments to purchase investment tax credits	12,298	12,448
Business Combination Noncash Assets Acquired At Fair Value	0	410,827
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities	0	421,987
Change in unrealized gain (loss) on AFS securities, net of tax	21,042	(18,989)
Change in unrealized loss on cash flow hedge, net of tax	0	13
Change in unfunded obligations	(9,506)	(27,250)
Unrealized gain on transfer of HTM securities to AFS, net of tax effect of $(5,367), $0, $(5,367), $0 for each respective period presented	$ 8,976	$ 0