Credit Quality (Summary Of Commercial Loans By Credit Quality) (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Loans, net of unearned income	$ 6,702,595	$ 6,088,155
Total commercial loans and leases	3,869,560	3,417,421
Commercial - PA [Member]
Loans, net of unearned income	3,596,055	3,142,711
Commercial - PA [Member] | Pass [Member]
Loans, net of unearned income	3,293,685	2,887,682
Commercial - PA [Member] | Special Mention [Member]
Loans, net of unearned income	114,414	80,409
Commercial - PA [Member] | Substandard [Member]
Loans, net of unearned income	182,169	170,714
Commercial - PA [Member] | Doubtful [Member]
Loans, net of unearned income	5,787	3,906
Commercial - FL [Member]
Loans, net of unearned income	180,232	195,281
Commercial - FL [Member] | Pass [Member]
Loans, net of unearned income	78,207	83,444
Commercial - FL [Member] | Special Mention [Member]
Loans, net of unearned income	16,545	38,664
Commercial - FL [Member] | Substandard [Member]
Loans, net of unearned income	85,480	73,173
Commercial Leases [Member]
Loans, net of unearned income	93,273	79,429
Commercial Leases [Member] | Pass [Member]
Loans, net of unearned income	91,937	77,945
Commercial Leases [Member] | Special Mention [Member]
Loans, net of unearned income	518	505
Commercial Leases [Member] | Substandard [Member]
Loans, net of unearned income	818	979
Pass [Member]
Total commercial loans and leases	3,463,829	3,049,071
Special Mention [Member]
Total commercial loans and leases	131,477	119,578
Substandard [Member]
Total commercial loans and leases	268,467	244,866
Doubtful [Member]
Total commercial loans and leases	$ 5,787	$ 3,906