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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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