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v3.20.1

Fair Value Measurements - Additional Information (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Fair Value Disclosures [Abstract] |  |
Fair value measurements transfers between level 1, level 2 or level 3 | $ 0 | $ 0

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- Definition Fair value assets transfers between level 1, level 2 and level 3. + References No definition available. + Details
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Namespace Prefix: | medp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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