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GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
GOODWILL AND INTANGIBLE ASSETS |  |
Amortization expense continuing operations | $ 2,224 | $ 2,449

X
- Definition Amount of amortization expense attributable to and intangible assets of continued operations. + References No definition available. + Details
Name: | clar_AmortizationContinuedOperations
Namespace Prefix: | clar_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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