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Trade Accounts and Bills Payable (Details)	3 Months Ended
	Mar. 31, 2021
Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract]
Bills payable maturity period	1 year

X

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_OtherLiabilitiesAndSharesSubjectToMandatoryRedemptionAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration