XML 55 R45.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Regulatory Requirements - Additional Information (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Regulatory Requirements |  |
Minimum net capital requirement | $ 250 |
U.S. Broker Dealer |  |
Regulatory Requirements |  |
Net capital | 189,898 | $ 180,342
Net capital in excess of required net capital | $ 189,648 | $ 180,092

X
- Definition Regulatory requirements + References No definition available. + Details
Name: | mc_RegulatoryCapitalRequirementsLineItems
Namespace Prefix: | mc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of net capital in excess of minimum required net capital, calculated under Alternative Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_AlternativeExcessNetCapital
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum amount of net capital of broker-dealer and its subsidiary, calculated under Alternative Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_AlternativeNetCapitalRequirement1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of net capital of broker-dealer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_NetCapital
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mc_MoelisAndCompanyLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |