Consolidated Statements of Condition (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Interest-Bearing Deposits	$ 3,036	$ 3,472
Funds Sold	512,384	438,327
Investment Securities
Available-for-Sale	3,451,885	6,533,874
Held-to-Maturity (Fair Value of $3,754,206 and $134,028)	3,657,796	127,249
Loans Held for Sale	18,957	17,564
Loans and Leases	5,538,304	5,335,792
Allowance for Loan and Lease Losses	(138,606)	(147,358)
Net Loans and Leases	5,399,698	5,188,434
Total Earning Assets	13,043,756	12,308,920
Cash and Noninterest-Bearing Deposits	154,489	165,748
Premises and Equipment	103,550	108,170
Customers' Acceptances	476	437
Accrued Interest Receivable	43,510	41,151
Foreclosed Real Estate	3,042	1,928
Mortgage Servicing Rights	24,279	25,379
Goodwill	31,517	31,517
Other Assets	441,772	443,537
Total Assets	13,846,391	13,126,787
Deposits
Noninterest-Bearing Demand	2,850,923	2,447,713
Interest-Bearing Demand	2,005,983	1,871,718
Savings	4,398,638	4,526,893
Time	1,337,079	1,042,671
Total Deposits	10,592,623	9,888,995
Funds Purchased	10,791	9,478
Short-Term Borrowings		6,200
Securities Sold Under Agreements to Repurchase	1,925,998	1,901,084
Long-Term Debt	30,696	32,652
Banker's Acceptances	476	437
Retirement Benefits Payable	46,949	30,885
Accrued Interest Payable	5,330	5,007
Taxes Payable and Deferred Taxes	95,840	121,517
Other Liabilities	135,021	119,399
Total Liabilities	12,843,724	12,115,654
Commitments and Contingencies (Note 18)
Shareholders' Equity
Common Stock ($.01 par value; authorized 500,000,000 shares; issued / outstanding: December 31, 2011 - 57,134,470 / 45,947,116 and December 31, 2010 - 57,115,287 / 48,097,672)	571	570
Capital Surplus	507,558	500,888
Accumulated Other Comprehensive Income	35,263	26,965
Retained Earnings	1,003,938	932,629
Treasury Stock, at Cost (Shares: December 31, 2011 - 11,187,354 and December 31, 2010 - 9,017,615)	(544,663)	(449,919)
Total Shareholders' Equity	1,002,667	1,011,133
Total Liabilities and Shareholders' Equity	$ 13,846,391	$ 13,126,787