Consolidated Statements of Financial Condition (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 394,002	$ 462,569
Interest bearing deposits with banks	370,712	367,838
Investment securities:
Held to maturity (fair value of $1,868,625 at March 31, 2015 and $1,815,976 at December 31, 2014)	1,825,819	1,778,316
Available for sale	843,518	886,970
Trading securities	0	14,233
Total investment securities	2,669,337	2,679,519
Loans held for sale, at fair value	3,648	24,295
Non-covered loans	13,550,735	13,262,022
Covered loans	183,726	211,891
Less: Allowance for loan losses	(102,631)	(102,353)
Net loans	13,631,830	13,371,560
Premises and equipment, net	281,236	282,997
Bank owned life insurance	377,404	375,640
Accrued interest receivable	56,590	57,333
Due from customers on acceptances outstanding	2,881	4,197
FDIC loss-share receivable	7,608	13,848
Goodwill	577,534	575,892
Other intangible assets, net	35,024	38,775
Other assets	572,204	539,392
Total Assets	18,980,010	18,793,855
Liabilities
Non-interest bearing	4,329,265	4,235,515
Interest bearing:
Savings, NOW and money market	7,115,243	7,056,133
Time	2,772,235	2,742,468
Total deposits	14,216,743	14,034,116
Short-term borrowings	133,866	146,781
Long-term borrowings	2,529,073	2,526,408
Junior subordinated debentures issued to capital trusts	41,292	41,252
Bank acceptances outstanding	2,881	4,197
Accrued expenses and other liabilities	189,002	178,084
Total Liabilities	17,112,857	16,930,838
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 232,616,426 shares at March 31, 2015 and 232,127,098 shares at December 31, 2014)	81,170	81,072
Surplus	1,696,834	1,693,752
Retained earnings	135,571	130,845
Accumulated other comprehensive loss	(44,662)	(42,495)
Treasury stock, at cost (188,318 common shares at March 31, 2015 and 16,123 common shares at December 31, 2014)	(1,760)	(157)
Total Shareholders’ Equity	1,867,153	1,863,017
Total Liabilities and Shareholders’ Equity	$ 18,980,010	$ 18,793,855