XML 14 R2.htm IDEA: XBRL DOCUMENT
v3.20.4

Document and Entity Information | 12 Months Ended
--- | ---
Dec. 31, 2020
Document and Entity Information [Abstract] |
Entity Central Index Key | 0000842517
Amendment Flag | false
Document Fiscal Year Focus | 2020
Document Fiscal Period Focus | FY
Current Fiscal Year End Date | --12-31

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Balance Type: | na
Period Type: | duration

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- Definition End date of current fiscal year in the format --MM-DD. + References No definition available. + Details
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Namespace Prefix: | dei_
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Balance Type: | na
Period Type: | duration

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- Definition Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY. + References No definition available. + Details
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- Definition This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. + References No definition available. + Details
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation 12B -Number 240 -Section 12 -Subsection b-2 + Details
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Balance Type: | na
Period Type: | duration