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Commercial Loans - Commercial Loans Held for Investment by Risk Category (Details) - Commercial Loans Held For Investment - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans held for investment	$ 23,144	$ 307,047
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans held for investment	5,444	272,768
Watch List
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans held for investment	0	34,279
Workout
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial loans held for investment	$ 17,700	$ 0

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+ References

No definition available.

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Amount before allowance of commercial loans and leases receivable includes, but not limited to, commercial and industrial loans, agricultural loans, mortgage loans, promissory notes, interbank and other loans to financial institutions, draws against credit facilities, trade financing, lease financings. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: 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),(b))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: 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

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