Loans, Allowance for Loan Losses and Credit Quality (Details 3)	Mar. 31, 2013 score		Dec. 31, 2012 score
Residential Portfolio Segment [Member]
Weighted average FICO scores and the weighted average combined LTV Ratio
FICO Score (re-scored) (1)	735	[1]	727	[1]
Combined LTV (re-valued) (2)	67.00%	[2]	67.00%	[2]
Consumer Home Equity [Member]
Weighted average FICO scores and the weighted average combined LTV Ratio
FICO Score (re-scored) (1)	763	[1]	763	[1]
Combined LTV (re-valued) (2)	55.00%	[2]	54.00%	[2]

[1] The average FICO scores for March 31, 2013 are based upon rescores available from Novermber 2012 and actual score data for loans booked between December 1, 2012 and March 31, 2013. The average FICO scores for December 31, 2012 are based upon rescores available from November 2012 and actual score data for loans booked between December 1 and December 31, 2012.

[2] The combined LTV ratios for March 31, 2013 are based upon updated automated valuations as of February 2013. The combined LTV ratios for December 31, 2012 are based upon updated automated valuations as of November 30, 2011.