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v3.24.3

Contingencies and Commitments (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2024 USD ($)
Guaranties [Abstract] |
Issued guaranties | $ 31.5
Maximum [Member] |
Guaranties [Abstract] |
Guarantor obligations, expiration period | 2 years
Performance Bonds [Member] |
Guaranties [Abstract] |
Issued guaranties | $ 19.9
Letters of Credit [Member] |
Guaranties [Abstract] |
Issued guaranties | $ 11.6

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- Definition Term of the guarantee or each group of financial instruments used to support performance by the company and its subsidiaries in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Namespace Prefix: | kex_
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Balance Type: | na
Period Type: | duration

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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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- Details
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |