Loans, Allowance for Loan Losses and Credit Quality (Weighted Average FICO Scores and the Weighted Average Combined LTV Ratio) (Details)	Mar. 31, 2014 score		Dec. 31, 2013 score
Residential Portfolio Segment [Member]
Weighted average FICO scores and the weighted average combined LTV Ratio
Weighted Average FICO Rating	738	[1]	738	[1]
Combined LTV (re-valued) (2)	67.10%	[2]	67.00%	[2]
Consumer Home Equity [Member]
Weighted average FICO scores and the weighted average combined LTV Ratio
Weighted Average FICO Rating	764	[1]	763	[1]
Combined LTV (re-valued) (2)	53.10%	[2]	53.00%	[2]

[1] The average FICO scores for March 31, 2014 are based upon rescores available from February 28, 2014 and origination score data for loans booked between March 1, 2014 and March 31, 2014. The average FICO scores for December 31, 2013 are based upon rescores available from November 30, 2013 and origination score data for loans booked between December 1, 2013 and December 31, 2013.

[2] The combined LTV ratios for March 31, 2014 are based upon updated automated valuations as of February 28, 2013 and origination value data for loans booked between March 1, 2013 and March 31, 2014. The combined LTV ratios for December 31, 2013 are based upon updated automated valuations as of February 28, 2013 and origination value data for loans booked from March 1, 2013 through December 31, 2013. For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.