Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income	$ 26,132	$ 40,343
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	11,759	11,725
Provision for credit losses	11,768	8,136
Deferred tax expense	255	3,217
Net securities (gains) losses	(71)	9
Tax benefit of stock-based compensation	(277)	(681)
Loans originated for sale	(95,503)	(71,499)
Loans sold	94,765	74,870
Gain on sale of loans	(2,164)	(1,813)
Net change in:
Interest receivable	(109)	(1,704)
Interest payable	1,301	(178)
Bank owned life insurance	(1,850)	(1,323)
Other, net	47,865	5,187
Net cash flows provided by operating activities	93,871	66,289
Investing Activities
Net change in loans and leases	(122,982)	(167,685)
Securities available for sale:
Purchases	(510,271)	(90,156)
Sales	615,199	33,228
Maturities	170,266	66,275
Securities held to maturity:
Purchases	(217,574)	(130,506)
Sales		69,394
Maturities	77,369
Purchase of bank owned life insurance	(64)	(8)
Increase in premises and equipment	(13,878)	(6,199)
Net cash received in business combinations	46,854
Net cash flows provided by (used in) investing activities	44,919	(225,657)
Financing Activities
Demand (non-interest bearing and interest bearing) and savings accounts	411,857	445,685
Time deposits	28,558	(20,779)
Short-term borrowings	(687,409)	(301,158)
Increase in long-term borrowings	42,371	6,598
Decrease in long-term borrowings	(51,546)	(6,579)
Net proceeds from issuance of common stock	1,232	4,775
Tax benefit of stock-based compensation	277	681
Cash dividends paid:
Preferred stock	(2,010)	(2,010)
Common stock	(25,294)	(20,992)
Net cash flows (used in) provided by financing activities	(281,964)	106,221
Net Decrease in Cash and Cash Equivalents	(143,174)	(53,147)
Cash and cash equivalents at beginning of period	489,119	287,393
Cash and Cash Equivalents at End of Period	$ 345,945	$ 234,246