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Leases (Details 1)	9 Months Ended
	Sep. 30, 2021
Leases
Weighted-average remaining lease term - operating leases	1 year 7 months 6 days
Weighted-average remaining lease term - finance leases	3 years 2 months 12 days
Weighted-average discount rate - operating leases	4.30%
Weighted-average discount rate- finance leases	2.20%

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Weighted average discount rate for finance lease calculated at point in time.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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