Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows From Operating Activities:
Net Income	$ 23,322,000	$ 19,418,000
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for Credit Losses	3,043,000	3,310,000
Depreciation and amortization	1,596,000	2,915,000
Gains on sale of loans	(1,463,000)	(3,587,000)
Securities premium amortization (discount accretion), net	1,142,000	683,000
Origination of loans held for sale	(125,644,000)	(279,612,000)
Proceeds from sale of loans held for sale	128,920,000	264,758,000
Net increase in cash surrender value of BOLI	(390,000)	(390,000)
(Increase) decrease in deferred income taxes	(825,000)	422,000
Decrease in value of other real estate owned	6,000	750,000
Net (gain) loss on sale of other real estate owned	(573,000)	17,000
Net gain on sale of investment securities	$ (624,000)	(2,164,000)
Loss on early extinguishment of debt		1,130,000
Stock-based compensation expense	$ 1,430,000	1,148,000
Tax benefits realized from stock compensation	(65,000)	(1,450,000)
Decrease (increase) in other assets	713,000	(296,000)
Increase in other liabilities	5,911,000	623,000
Net cash provided by operating activities	36,499,000	7,675,000
Cash Flows From Investing Activities:
Decrease in interest bearing deposits with other banks and short-term investments	698,000	295,000
Purchases of available for sale investment securities	(41,378,000)	(26,885,000)
Proceeds from maturities of available for sale securities	24,182,000	12,110,000
Proceeds from sale/call of available for sale securities	15,700,000	65,701,000
Purchases of Federal Reserve and Federal Home Loan Bank stock	$ (793,000)	(2,322,000)
Proceeds from redemption of Federal Reserve and Federal Home Loan Bank stock		(8,100,000)
Net increase in loans	$ (159,159,000)	(134,100,000)
Proceeds from sale of other real estate owned	$ 2,572,000	153,000
Purchases of BOLI		(389,000)
Purchases of annuities		(992,000)
Bank premises and equipment acquired	$ (977,000)	(348,000)
Net cash used in investing activities	(159,155,000)	(78,677,000)
Cash Flows From Financing Activities:
Increase in deposits	31,202,000	273,597,000
Decrease in customer repurchase agreements	$ (5,393,000)	(2,531,000)
Issuance of common stock		94,698,000
Decrease in short-term borrowings		(100,000,000)
Decrease in long-term borrowings		(40,000,000)
Payment of dividends on preferred stock		(164,000)
Proceeds from exercise of stock options	$ 159,000	3,439,000
Tax benefits realized from stock compensation	$ 65,000	1,450,000
Payment in lieu of fractional shares		(4,000)
Proceeds from employee stock purchase plan	$ 157,000	153,000
Net cash provided by financing activities	26,190,000	230,638,000
Net (Decrease) Increase In Cash and Cash Equivalents	(96,466,000)	159,636,000
Cash and Cash Equivalents at Beginning of Period	298,363,000	256,025,000
Cash and Cash Equivalents at End of Period	201,897,000	415,661,000
Supplemental Cash Flows Information:
Interest paid	6,105,000	6,045,000
Income taxes paid	$ 7,100,000	$ 8,350,000
Non-Cash Investing Activities
Transfers from loans to other real estate owned
Transfers from other real estate owned to loans