Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidation	Basis of Presentation and Principles of Consolidation The accompanying unaudited interim consolidated financial statements include the accounts of Core Laboratories N.V. and its subsidiaries for which we have a controlling voting interest and/or a controlling financial interest. These financial statements have been prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP") for interim financial information using the instructions to Form 10-Q and Article 10 of Regulation S-X. Core Laboratories N.V.'s balance sheet information for the year ended December 31, 2022, was derived from the 2022 audited consolidated financial statements. Accordingly, these financial statements do not include all of the information and footnote disclosures required by U.S. GAAP for the annual financial statements and should be read in conjunction with the audited financial statements and the summary of significant accounting policies and notes thereto included in our 2022 Annual Report. Core Laboratories N.V. uses the equity method of accounting for investments in which it has less than a majority interest and does not exercise control but does exert significant influence. Non-controlling interests have been recorded to reflect outside ownership attributable to consolidated subsidiaries that are less than 100% owned. All inter-company transactions and balances have been eliminated in consolidation. In the opinion of management, all adjustments considered necessary for a fair statement of the results for the interim periods presented have been included in these financial statements. Furthermore, the operating results presented for the three months ended March 31, 2023, may not necessarily be indicative of the results that may be expected for the year ending December 31, 2023. Certain reclassifications were made to prior period amounts in order to conform to the current period presentation. These reclassifications had no impact on the reported net income or cash flows for the three months ended March 31, 2022.
Property, Plant and Equipment	Property, Plant and Equipment We review our long-lived assets ("LLA") for impairment when events or changes in circumstances indicate that their net book value may not be recovered over their remaining service lives. Indicators of possible impairment may include significant declines in activity levels in regions where specific assets or groups of assets are located, extended periods of idle use, declining revenue or cash flow or overall changes in general market conditions. The geopolitical conflict between Russia and Ukraine, which began in February 2022 and has continued through March 31, 2023, has resulted in disruptions to our operations in Ukraine and Russia. The Company has assessed the need for impairment testing for LLA in Russia and Ukraine as of March 31, 2023. As of March 31, 2023, all laboratory facilities, offices, and locations in Russia continued to operate and remained profitable, which formed the basis of our projections for evaluating impairment, and no specific asset impairments were identified. With regard to the Company’s operations and associated fixed assets in Ukraine, there is no damage to our facilities as of March 31, 2023. During the three months ended March 31, 2023, the Company has performed limited operations in Ukraine as the circumstances permit and intends to resume full operations in Ukraine at such time as we believe appropriate and safe for our local employees. Therefore, we determined there was no impairment for LLA in Ukraine as of March 31, 2023.

Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2023

Basis of Presentation and Principles of Consolidation

The accompanying unaudited interim consolidated financial statements include the accounts of Core Laboratories N.V. and its subsidiaries for which we have a controlling voting interest and/or a controlling financial interest. These financial statements have been prepared in accordance with United States generally accepted accounting principles ("U.S. GAAP") for interim financial information using the instructions to Form 10-Q and Article 10 of Regulation S-X. Core Laboratories N.V.'s balance sheet information for the year ended December 31, 2022, was derived from the 2022 audited consolidated financial statements. Accordingly, these financial statements do not include all of the information and footnote disclosures required by U.S. GAAP

for the annual financial statements and should be read in conjunction with the audited financial statements and the summary of significant accounting policies and notes thereto included in our 2022 Annual Report.

Core Laboratories N.V. uses the equity method of accounting for investments in which it has less than a majority interest and does not exercise control but does exert significant influence. Non-controlling interests have been recorded to reflect outside ownership attributable to consolidated subsidiaries that are less than 100% owned. All inter-company transactions and balances have been eliminated in consolidation.

In the opinion of management, all adjustments considered necessary for a fair statement of the results for the interim periods presented have been included in these financial statements. Furthermore, the operating results presented for the three months ended March 31, 2023, may not necessarily be indicative of the results that may be expected for the year ending December 31, 2023.

Certain reclassifications were made to prior period amounts in order to conform to the current period presentation. These reclassifications had no impact on the reported net income or cash flows for the three months ended March 31, 2022.

Property, Plant and Equipment

We review our long-lived assets ("LLA") for impairment when events or changes in circumstances indicate that their net book value may not be recovered over their remaining service lives. Indicators of possible impairment may include significant declines in activity levels in regions where specific assets or groups of assets are located, extended periods of idle use, declining revenue or cash flow or overall changes in general market conditions.

The geopolitical conflict between Russia and Ukraine, which began in February 2022 and has continued through March 31, 2023, has resulted in disruptions to our operations in Ukraine and Russia. The Company has assessed the need for impairment testing for LLA in Russia and Ukraine as of March 31, 2023. As of March 31, 2023, all laboratory facilities, offices, and locations in Russia continued to operate and remained profitable, which formed the basis of our projections for evaluating impairment, and no specific asset impairments were identified. With regard to the Company’s operations and associated fixed assets in Ukraine, there is no damage to our facilities as of March 31, 2023. During the three months ended March 31, 2023, the Company has performed limited operations in Ukraine as the circumstances permit and intends to resume full operations in Ukraine at such time as we believe appropriate and safe for our local employees. Therefore, we determined there was no impairment for LLA in Ukraine as of March 31, 2023.