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DESCRIPTION OF BUSINESS (Details) | 12 Months Ended
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Dec. 31, 2020 numberOfInvestmentGroups
Accounting Policies [Abstract] |
Number of investment groups | 4

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- Definition Number Of Investment Groups + References No definition available. + Details
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Balance Type: | na
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration