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Amount of restricted investment in debt security measured at fair value with change in fair value recognized in net income (trading).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
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This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

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Amount of investment in marketable security.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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