Amount of mortgage loans held for sale. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a)(3))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6490309&loc=d3e48678-111004

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Permanent Investor

-URI http://asc.fasb.org/extlink&oid=6520390

Name:	us-gaap_LoansHeldForSaleMortgages
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Residential mortgage loans to be sold in secondary market	Dec. 31, 2012 Residential mortgage loans to be sold in secondary market	Dec. 31, 2013 Residential mortgage loans awaiting sale in secondary market Minimum	Dec. 31, 2013 Residential mortgage loans awaiting sale in secondary market Maximum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loan sales	$ 782.5
Loan securitizations and loan sales	146.5
Percentage of loan securitizations and loan sales	18.70%
Loans held for sale, settlement period				15 days	45 days
Residential mortgage loans held for sale		$ 30.6	$ 65.3