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1. Basis of Presentation and Use of Estimates Immaterial Errors Correction Associated With Presentation (Tables) | 3 Months Ended
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Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Quantifying Prior Year Misstatements Corrected in Current Year Financial Statements [Table Text Block] | Following are the amounts in thousands that should have been reported for the Statements of Comprehensive Income for the two affected line items, including the associated income taxes (note: income taxes were originally reported in millions but have been presented below in thousands):
| Three Months Ended | Year Ended December 31,
| March 31, 2012 | 2012 | 2011 | 2010
Net unrealized holding gains on AFS investments, net of income tax; understated by $8,168, $10,090 and $770 for the three months ended March 31, 2012, for the years ended 2012 and 2010, respectively, and overstated by $208 for the year ended 2011. | $27,422 | $65,448 | $12,663 | $15,495
Income taxes on net unrealized holding gains on AFS investments; understated by $4,756, $5,874 and $448 for the three months ended March 31, 2012, for the years ended 2012 and 2010, respectively, and overstated by $121 for the year ended 2011. | $15,967 | $38,108 | $7,373 | $9,022
Reclassification adjustments for net holding (gains) losses on AFS investments included in Net income including noncontrolling interests, net of income tax; understated by $8,168, $10,090 and $770 for the three months ended March 31, 2012, for the years ended 2012 and 2010, respectively, and overstated by $208 for the year ended 2011. | $(4,084) | $(5,045) | $104 | $(385)
Income taxes on reclassification adjustments for net holding gains/losses on AFS investments included in Net income including noncontrolling interests; understated by $4,756, $5,874 and $448 for the three months ended March 31, 2012, for the years ended 2012 and 2010, respectively, and overstated by $121 for the year ended 2011. | $(2,378) | $(2,937) | $61 | $(224)

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- Definition Tabular disclosure of the nature and amount of prior period errors that had previously been considered immaterial and which are being corrected in the current fiscal year. This disclosure would also generally include when and how each error being corrected arose and assert that the errors were immaterial to the prior amounts reported. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 1.N.Q3) -URI http://asc.fasb.org/extlink&oid=6369664&loc=d3e30840-122693 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 1 -Section N + Details
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