The cash outflow associated with the purchase of all investments (debt, security, other) during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
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-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4