Consolidated Statements of Cash Flows - USD ($)		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Cash Flows From Operating Activities
Net income		$ 72,087,000	$ 62,654,000
Adjustments to reconcile net income to net cash provided by operating activities
Provision for loan and lease losses		6,242,000	5,019,000
Stock-based compensation expense		2,934,000	2,041,000
Depreciation, amortization and accretion		21,892,000	21,956,000
Investment securities gain, net		1,300,000	552,000
Net realized (gain) loss on sale of other assets		(241,000)	566,000
Net gain on sale and valuation adjustments of OREO	[1]	1,798,000	1,735,000
Net realized gain on sale of branches		0	(565,000)
Payments for Origination and Purchases of Loans Held-for-sale	[1]	(57,249,000)	(18,137,000)
Proceeds from Sale of Loans Held-for-sale	[1]	52,983,000	18,424,000
Net change in:
Interest receivable		(2,684,000)	(3,092,000)
Interest payable		(136,000)	(61,000)
Other assets		(1,618,000)	(5,567,000)
Other liabilities		11,012,000	6,749,000
Net cash provided by operating activities		100,869,000	87,199,000
Cash Flows From Investing Activities
Loans originated and acquired, net of principal collected		(314,768,000)	(310,185,000)
Purchases of securities available for sale		(218,734,000)	(127,728,000)
Purchases of premises and equipment		(7,351,000)	(10,530,000)
Payments to Acquire Federal Home Loan Bank Stock		(7,360,000)	0
Proceeds from FDIC reimbursement on loss-sharing asset		4,195,000	4,607,000
Proceeds from sales of securities available for sale		82,776,000	55,834,000
Proceeds from principal repayments and maturities of securities available for sale		204,322,000	134,882,000
Proceeds from Sales of Assets, Investing Activities		44,615,000	1,470,000
Proceeds from sales of other real estate and other personal property owned	[1]	13,254,000	24,688,000
Payments to FDIC related to loss-sharing asset		(1,472,000)	(3,384,000)
Net cash paid in branch sale		0	16,788,000
Net cash used in investing activities		(200,523,000)	(247,134,000)
Cash Flows From Financing Activities
Net increase in deposits		390,083,000	307,103,000
Net decrease in sweep repurchase agreements		(31,898,000)	0
Proceeds from Federal Home Loan Bank advances		1,467,000,000	1,308,000,000
Proceeds from Federal Reserve Bank borrowings		1,010,000	800,000
Proceeds from exercise of stock options		1,194,000	915,000
Repayment of Federal Home Loan Bank advances		(1,677,000,000)	(1,338,000,000)
Repayment of Federal Reserve Bank borrowings		(1,010,000)	(800,000)
Payment of common stock dividends		(56,480,000)	(33,525,000)
Payments of Ordinary Dividends, Preferred Stock and Preference Stock		(100,000)	(66,000)
Repayments of Subordinated Debt		8,248,000	0
Purchase and retirement of common stock		879,000	605,000
Net cash provided by financing activities		83,672,000	243,822,000
Increase (decrease) in cash and cash equivalents		(15,982,000)	83,887,000
Cash and cash equivalents at beginning of period		188,170,000	179,561,000
Cash and cash equivalents at end of period		172,188,000	263,448,000
Supplemental Information:
Cash paid for interest		3,190,000	2,922,000
Cash paid for income tax		19,054,000	11,230,000
Non-cash investing and financing activities
Loans transferred to other real estate owned		8,751,000	8,930,000
Gain (Loss) on Sales of Loans, Net	[1]	$ (1,255,000)	$ (501,000)

[1] Reclassified to conform to the current period’s presentation. There were no changes to cash flows from operating, investing or financing activities as a result of these reclassifications.