Impact of Covid-19 (Details)	12 Months Ended
Dec. 31, 2022
Unusual or Infrequent Items, or Both [Abstract]
Gross margin percentage	18.70%
Compared to prior year percentage	20.10%

Percentage increase (decrease) in fund net asset value, assuming reinvestment of dividends and capital gain distributions.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 27
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480737/946-205-50-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480737/946-205-50-18

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