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Fair Value Measurements (Assumptions for Mortgage Servicing Rights) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2013
Loans
Mar. 31, 2012
Loans
Fair Value Disclosures [Abstract]    
Serviced portfolio with MSRs $ 249,378 $ 159,063
Number of loans serviced with MSRs 2,106 1,327
Capitalized loans servicing portfolio $ 335 $ 0
Capitalized servicing rate (bps) 0.1343% 0.00%
Capitalized servicing multiple 39.00% 0.00%
Weighted average servicing fee (bps) 0.3459% 0.3365%