- DefinitionAmount of debt securities categorized neither as held-to-maturity nor trading.
Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 320
 -SubTopic 10
 -Section 25
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803
| Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities | 
| Namespace Prefix: | us-gaap_ | 
| Data Type: | xbrli:monetaryItemType | 
| Balance Type: | debit | 
| Period Type: | instant |