Consolidated Statements of Condition (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Interest-Bearing Deposits	$ 4,840	$ 3,393
Funds Sold	130,734	185,682
Investment Securities
Available-for-Sale	3,290,850	3,367,557
Held to Maturity (Fair Value of $3,679,208 and $3,687,676)	3,597,810	3,595,065
Loans Held for Sale	24,015	21,374
Loans and Leases	5,782,969	5,854,521
Allowance for Loan and Lease Losses	(126,878)	(128,857)
Net Loans and Leases	5,656,091	5,725,664
Total Earning Assets	12,704,340	12,898,735
Cash and Noninterest-Bearing Deposits	147,796	163,786
Premises and Equipment	104,844	105,005
Customers' Acceptances	152	173
Accrued Interest Receivable	46,183	43,077
Foreclosed Real Estate	3,318	3,887
Mortgage Servicing Rights	26,540	25,240
Goodwill	31,517	31,517
Other Assets	460,977	456,952
Total Assets	13,525,667	13,728,372
Deposits
Noninterest-Bearing Demand	3,336,406	3,367,185
Interest-Bearing Demand	2,127,550	2,163,473
Savings	4,451,143	4,399,316
Time	1,336,761	1,599,508
Total Deposits	11,251,860	11,529,482
Funds Purchased	66,296	11,296
Securities Sold Under Agreements to Repurchase	748,718	758,947
Long-Term Debt	177,427	128,055
Banker's Acceptances	152	173
Retirement Benefits Payable	47,423	47,658
Accrued Interest Payable	5,772	4,776
Taxes Payable and Deferred Taxes	93,906	88,014
Other Liabilities	108,009	138,306
Total Liabilities	12,499,563	12,706,707
Shareholders' Equity
Common Stock ($.01 par value; authorized 500,000,000 shares; issued / outstanding: March 31, 2013 - 57,465,782 / 44,861,335 and December 31, 2012 - 57,319,352 / 44,754,835)	572	571
Capital Surplus	517,327	515,619
Accumulated Other Comprehensive Income	19,645	29,208
Retained Earnings	1,098,674	1,084,477
Treasury Stock, at Cost (Shares: March 31, 2013 - 12,604,447 and December 31, 2012 - 12,564,517)	(610,114)	(608,210)
Total Shareholders' Equity	1,026,104	1,021,665
Total Liabilities and Shareholders' Equity	$ 13,525,667	$ 13,728,372