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Related Party Transactions (Details) - USD ($) |  | 3 Months Ended |
--- | --- | --- | ---
Aug. 26, 2016 | Sep. 30, 2021 | Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Related Party Transaction [Line Items] |  |  |  |  |
Operating lease right-of-use assets |  |  | $ 27,972,000 |  | $ 28,116,000
Estimated termination payment, tax receivable agreement |  |  | $ 70,000,000.0 |  |
Discount rate, tax receivable agreement liability |  |  | 4.15% |  |
Forecast | Expro Group Holdings International Limited |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Estimated termination payment, tax receivable agreement |  | $ 15,000,000 |  |  |
Tax receivable agreement, contingent payments due, trigger amount, period |  | 10 years |  |  |
Tax receivable agreement, contingent payments due, trigger amount |  | $ 18,057,000 |  |  |
Affiliated Entity |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Rent expense |  |  | $ 700,000 | $ 700,000 |
Operating lease right-of-use assets |  |  | 3,100,000 |  |
Operating lease liabilities |  |  | $ 4,500,000 |  |
Affiliated Entity | Mosing Holdings |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Percentage of tax benefits realized payable, tax receivable agreement | 85.00% |  |  |  |
Percentage retained under tax receivable agreement | 15.00% |  |  |  |
Cumulative deficit, period, tax receivable agreement |  |  | 36 months |  |
Long-Term Treasury Rate | Affiliated Entity | Mosing Holdings |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Basis spread on variable rate, tax receivable agreement | 3.00% |  |  |  |

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