v2.4.1.9

Condensed Consolidated and Combined Statements of Changes in Equity (USD $) In Thousands, except Share data, unless otherwise specified	Class A common stock Common Stock	Class B common stock Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit).	Parent Company Investment	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	Total
Balance at beginning of period at Dec. 31, 2013						$ 308,444us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember	$ 926us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember		$ 309,370us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Changes in Equity
Net income (loss)						22,092us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember			22,092us-gaap_ProfitLoss
Net cash distributions to Parent						(56,428)mc_NetCashDistributionsToParent / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember			(56,428)mc_NetCashDistributionsToParent
Equity-based compensation						11,010us-gaap_PartnersCapitalAccountUnitBasedCompensation / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember			11,010us-gaap_PartnersCapitalAccountUnitBasedCompensation
Equity-based contributions to joint venture and Parent's advisory board						682mc_EquityBasedContributionsToJointVentureAndParentAdvisoryBoard / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember			682mc_EquityBasedContributionsToJointVentureAndParentAdvisoryBoard
Other comprehensive income (loss)							1us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember		1us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Other non-cash distributions						(2,904)mc_OtherNoncashDistributions / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember			(2,904)mc_OtherNoncashDistributions
Balance at end of period at Mar. 31, 2014						282,896us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = mc_ParentCompanyInvestmentMember	927us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember		283,823us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Balance at beginning of period at Dec. 31, 2014	198us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	316us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember		136,896us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	(24,118)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember		85us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember	61,008us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember	174,385us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Balance at beginning of the period (in shares) at Dec. 31, 2014	19,770,893us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	31,621,542us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Changes in Equity
Net income (loss)					5,336us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember			14,625us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember	19,961us-gaap_ProfitLoss
Equity-based compensation				7,483us-gaap_PartnersCapitalAccountUnitBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember				1,066us-gaap_PartnersCapitalAccountUnitBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember	8,549us-gaap_PartnersCapitalAccountUnitBasedCompensation
Equity-based compensation (in shares)	22,239us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	(3,838)us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Other comprehensive income (loss)							(307)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember	(536)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember	(843)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Dividend and distributions				455us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	(4,447)us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember			(31,461)us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember	(35,453)us-gaap_Dividends
Treasury Stock Purchases			(4,327)us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember						(4,327)us-gaap_TreasuryStockValueAcquiredCostMethod
Treasury Stock Purchases (in shares)			(135,906)us-gaap_TreasuryStockSharesAcquired / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Net tax benefit from the delivery of RSUs and payment of dividend equivalents				3mc_NetTaxBenefitCostFromDeliveryOfRestrictedStockUnitsAndPaymentOfDividendEquivalents / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember					3mc_NetTaxBenefitCostFromDeliveryOfRestrictedStockUnitsAndPaymentOfDividendEquivalents
Balance at end of period at Mar. 31, 2015	$ 198us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	$ 316us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	$ (4,327)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember	$ 144,837us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ (23,229)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember		$ (222)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember	$ 44,702us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember	$ 162,275us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Balance at end of the period (in shares) at Mar. 31, 2015	19,793,132us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	31,617,704us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	(135,906)us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember

X

- Definition

Represents the amount of equity-based contributions given to joint venture and parent's advisory board during the period.

+ References

No definition available.

+ Details

Name:	mc_EquityBasedContributionsToJointVentureAndParentAdvisoryBoard
Namespace Prefix:	mc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount of net cash distributions to the parent company during the period.

+ References

No definition available.

+ Details

Name:	mc_NetCashDistributionsToParent
Namespace Prefix:	mc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the amount of increase or decrease in additional paid in capital (APIC) from the delivery of restricted stock units and payment of dividend equivalents

+ References

No definition available.

+ Details

Name:	mc_NetTaxBenefitCostFromDeliveryOfRestrictedStockUnitsAndPaymentOfDividendEquivalents
Namespace Prefix:	mc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount of other non-cash distributions made during the period.

+ References

No definition available.

+ Details

Name:	mc_OtherNoncashDistributions
Namespace Prefix:	mc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

+ Details

Name:	us-gaap_Dividends
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_IncreaseDecreaseInStockholdersEquityRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount after tax of other comprehensive income (loss) attributable to parent entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569643-111683



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (c)(3)

-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Total change in each class of partners' capital accounts during the year due to unit-based compensation. All partners include general, limited and preferred partners.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

+ Details

Name:	us-gaap_PartnersCapitalAccountUnitBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 55

-Paragraph 4K

-URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (a),(c)

-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 55

-Paragraph 4J

-URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686

+ Details

Name:	us-gaap_ProfitLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number of shares issued which are neither cancelled nor held in the treasury.

+ References

No definition available.

+ Details

Name:	us-gaap_SharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568447-111683



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 55

-Paragraph 4I

-URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4590271-111686

+ Details

Name:	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

Name:	us-gaap_TreasuryStockSharesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

+ Details

Name:	us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration