Consolidated Statements of Financial Condition (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash and due from banks	$ 462,569	$ 234,253
Interest bearing deposits with banks	367,838	134,915
Investment securities:
Held to maturity, fair value of $1,815,976 at December 31, 2014 and $1,711,427 at December 31, 2013	1,778,316	1,731,737
Available for sale	886,970	829,692
Trading securities	14,233	14,264
Total investment securities	2,679,519	2,575,693
Loans held for sale, at fair value	24,295	10,488
Non-covered loans	13,262,022	11,471,447
Covered loans	211,891	96,165
Less: Allowance for loan losses	(102,353)	(113,617)
Net loans	13,371,560	11,453,995
Premises and equipment, net	282,997	270,138
Bank owned life insurance	375,640	344,023
Accrued interest receivable	57,333	53,964
Due from customers on acceptances outstanding	4,197	5,032
FDIC loss-share receivable	13,848	32,757
Goodwill	575,892	428,234
Other intangible assets, net	38,775	36,130
Other assets	539,392	576,919
Total Assets	18,793,855	16,156,541
Liabilities
Non-interest bearing	4,235,515	3,717,271
Interest bearing:
Savings, NOW and money market	7,056,133	5,422,722
Time	2,742,468	2,179,269
Total deposits	14,034,116	11,319,262
Short-term borrowings	146,781	281,455
Long-term borrowings	2,526,408	2,792,306
Junior subordinated debentures issued to capital trusts	41,252	41,089
Bank acceptances outstanding	4,197	5,032
Accrued expenses and other liabilities	178,084	176,357
Total Liabilities	16,930,838	14,615,501
Shareholders’ Equity
Preferred stock, no par value, authorized 30,000,000 shares; none issued	0	0
Common stock, no par value, authorized 332,023,233 shares; issued 232,127,098 shares at December 31, 2014 and 199,629,268 shares at December 31, 2013	81,072	69,941
Surplus	1,693,752	1,403,375
Retained earnings	130,845	106,340
Accumulated other comprehensive loss	(42,495)	(38,252)
Treasury stock, at cost (16,123 common shares at December 31, 2014 and 36,159 common shares at December 31, 2013)	(157)	(364)
Total Shareholders’ Equity	1,863,017	1,541,040
Total Liabilities and Shareholders’ Equity	$ 18,793,855	$ 16,156,541