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Lease Commitments - Lease Terms and Assumptions (Details) | Dec. 31, 2020 | Dec. 31, 2019
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Weighted average remaining lease term (years) |  |
Operating leases | 7 years 4 months 24 days | 7 years 10 months 24 days
Finance leases | 4 years 2 months 12 days | 4 years 4 months 24 days
Weighted average discount rate |  |
Operating leases | 2.90% | 3.20%
Finance leases | 1.00% | 2.00%

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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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details
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