Consolidated Condensed Statements of Condition (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Cash and due from banks (Restricted - $ - on March 31, 2014; $.2 million on March 31, 2013; and $1.2 million on December 31, 2013)	$ 450,270	$ 349,216	$ 275,262
Total cash and cash equivalents (Restricted - $ - on March 31, 2014; $.2 million on March 31, 2013; and $1.2 million on December 31, 2013)	1,072,101	827,909	1,041,696
Loans, net of unearned income (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013) (Note 4)	15,119,461	15,389,074	15,889,670
Less: Allowance for loan losses (Restricted - $2.0 million on March 31, 2014; $3.7 million on March 31, 2013; and $4.4 million on December 31, 2013) (Note 5)	247,246	253,809	265,218
Total net loans (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	14,872,215	15,135,265	15,624,452
Other assets (Restricted - $.9 million on March 31, 2014; $1.6 million on March 31, 2013; and $1.9 million on December 31, 2013)	1,430,170	1,685,384	1,663,092
Total assets (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	23,941,989	23,789,833	24,803,048
Term borrowings (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	1,507,048	1,739,859	2,197,864
Total liabilities (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	21,397,852	21,289,082	22,203,321
Common stock, par value	$ 0.625	$ 0.625	$ 0.625
Common stock, shares authorized	400,000,000	400,000,000	400,000,000
Common stock, shares issued	236,586,017	236,369,554	241,224,839
Preferred stock, no par value	$ 0	$ 0	$ 0
PreferredStockLiquidationPreference	$ 100,000	$ 100,000	$ 100,000
Preferred stock, shares authorized	1,000	1,000	1,000
Preferred stock, shares issued	1,000	1,000	1,000
Variable Interest Entity, Primary Beneficiary [Member]
Cash and due from banks (Restricted - $ - on March 31, 2014; $.2 million on March 31, 2013; and $1.2 million on December 31, 2013)	0	1,200	200
Total cash and cash equivalents (Restricted - $ - on March 31, 2014; $.2 million on March 31, 2013; and $1.2 million on December 31, 2013)	0	1,200	200
Loans, net of unearned income (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013) (Note 4)	100,000	100,000	100,000
Less: Allowance for loan losses (Restricted - $2.0 million on March 31, 2014; $3.7 million on March 31, 2013; and $4.4 million on December 31, 2013) (Note 5)	2,000	4,400	3,700
Total net loans (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	100,000	100,000	100,000
Other assets (Restricted - $.9 million on March 31, 2014; $1.6 million on March 31, 2013; and $1.9 million on December 31, 2013)	900	1,900	1,600
Total assets (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	100,000	100,000	100,000
Term borrowings (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	100,000	100,000	100,000
Total liabilities (Restricted - $.1 billion on March 31, 2014; March 31, 2013; and December 31, 2013)	$ 100,000	$ 100,000	$ 100,000