Leases (Narrative) (Details)	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Weighted-average discount rate of operating leases	3.10%
Weighted-average discount rate of finance leases	4.10%
Weighted-average remaining term of operating leases	5 years 1 month 6 days
Weighted-average remaining term of finance leases	3 years 8 months 12 days
Minimum [Member]
Lessee, Lease, Description [Line Items]
Remaining lease terms for operating leases	1 year
Remaining lease terms for finance leases	3 years
Maximum [Member]
Lessee, Lease, Description [Line Items]
Remaining lease terms for operating leases	9 years
Remaining lease terms for finance leases	4 years

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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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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Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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

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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

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