Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income	$ 67,432	$ 80,474
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	25,892	21,871
Provision for credit losses	28,408	17,000
Deferred tax expense	11,539	5,789
Net securities (gains) losses	(297)	(5)
Tax benefit of stock-based compensation	(143)	(192)
Loans originated for sale	(266,313)	(195,538)
Loans sold	264,874	198,787
Gain on sale of loans	(5,843)	(3,780)
Net change in:
Interest receivable	(215)	(1,593)
Interest payable	(131)	(492)
Bank owned life insurance	(3,355)	(2,524)
Other, net	(21,916)	(14,562)
Net cash flows provided by operating activities	99,932	105,235
Investing Activities
Net change in loans and leases	(438,448)	(402,216)
Securities available for sale:
Purchases	(622,544)	(242,375)
Sales	615,199	33,228
Maturities	256,722	125,270
Securities held to maturity:
Purchases	(588,138)	(204,591)
Maturities	158,240	137,518
Purchase of bank owned life insurance	(16,579)	(24)
Increase in premises and equipment	(27,311)	(8,651)
Net cash received in business combinations	245,762
Net cash flows used in investing activities	(417,097)	(561,841)
Financing Activities
Demand (non-interest bearing and interest bearing) and savings accounts	355,565	999,376
Time deposits	(79,850)	(21,510)
Short-term borrowings	9,114	(534,076)
Increase in long-term borrowings	28,168	14,654
Decrease in long-term borrowings	(37,942)	(13,544)
Net proceeds from issuance of common stock	6,603	7,772
Tax benefit of stock-based compensation	143	192
Cash dividends paid:
Preferred stock	(4,020)	(4,020)
Common stock	(50,708)	(42,152)
Net cash flows provided by financing activities	227,073	406,692
Net Decrease in Cash and Cash Equivalents	(90,092)	(49,914)
Cash and cash equivalents at beginning of period	489,119	287,393
Cash and Cash Equivalents at End of Period	$ 399,027	$ 237,479