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Contract Liability and Receivable - Narrative (Details)	12 Months Ended
	Dec. 31, 2020 year
Disclosure of revenue from contracts with customers [Abstract]
Expected recognition period	5

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- Definition

Contract Liability, Recognition Period

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No definition available.

+ Details

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- Definition

Disclosure of revenue from contracts with customers [Abstract]

+ References

No definition available.

+ Details

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