Loan and Lease Financings (Details 3) (USD $) In Thousands, unless otherwise specified																		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Residential real estate and consumer loans	Dec. 31, 2012 Residential real estate and consumer loans	Dec. 31, 2013 Residential real estate	Dec. 31, 2012 Residential real estate	Dec. 31, 2011 Residential real estate	Dec. 31, 2013 Consumer loans	Dec. 31, 2012 Consumer loans	Dec. 31, 2011 Consumer loans	Dec. 31, 2013 Performing Residential real estate and consumer loans	Dec. 31, 2012 Performing Residential real estate and consumer loans	Dec. 31, 2013 Performing Residential real estate	Dec. 31, 2012 Performing Residential real estate	Dec. 31, 2013 Performing Consumer loans	Dec. 31, 2012 Performing Consumer loans	Dec. 31, 2013 Nonperforming	Dec. 31, 2013 Nonperforming Residential real estate and consumer loans	Dec. 31, 2012 Nonperforming Residential real estate and consumer loans	Dec. 31, 2013 Nonperforming Residential real estate	Dec. 31, 2012 Nonperforming Residential real estate	Dec. 31, 2013 Nonperforming Consumer loans	Dec. 31, 2012 Nonperforming Consumer loans
Loan and Lease Financings
Classification of nonperforming loans, threshold period past due																		90 days
Recorded investment in loans and leases	$ 3,549,324	$ 3,327,553	$ 3,090,543	$ 585,111	$ 547,914	$ 460,981	$ 438,641	$ 423,606	$ 124,130	$ 109,273	$ 98,163	$ 582,048	$ 544,776	$ 458,385	$ 435,962	$ 123,663	$ 108,814		$ 3,063	$ 3,138	$ 2,596	$ 2,679	$ 467	$ 459