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Leases - Lease Term and Discount Rate (Details)	Sep. 30, 2021	Dec. 31, 2020
Weighted-average remaining lease term (years)
Operating leases	8 years 1 month 6 days	7 years 4 months 24 days
Finance leases	3 years 6 months	4 years 6 months
Weighted-average discount rate
Operating leases	2.40%	2.70%
Finance leases	1.40%	1.40%

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
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- Definition

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

+ References

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-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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-URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971

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