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v3.24.1.u1

Commitments and Contingencies (Details) $ in Millions | Mar. 31, 2024 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
Guarantee obligation carrying amount | $ 32.2

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- Definition Guarantee Obligations, Carrying Amount + References No definition available. + Details
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Namespace Prefix: | oec_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration