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Debt and Credit Arrangements - Foreign Facilities (Details) - Foreign facilities - Revolving Credit Facility - USD ($) | Mar. 31, 2021 | Dec. 31, 2020
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Debt Instrument |  |
Maximum borrowing capacity | $ 80,900,000 |
Weighted average interest rate (percent) |  | 1.30%
Letters of credit outstanding | $ 51,600,000 | $ 47,700,000

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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