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Data Type:	xbrli:sharesItemType
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Period Type:	instant

Cost of the investment.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B(Column D))
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-Name Accounting Standards Codification
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Name:	us-gaap_InvestmentOwnedPercentOfNetAssets
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

The percentage rate used to calculate dividend payments on preferred stock.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Number of previously issued common shares repurchased by the issuing entity and held in treasury.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
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