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Annual report pursuant to Section 13 and 15(d)

Transactions with Officers and Directors (Details)

v2.4.1.9
Transactions with Officers and Directors (Details) (USD $)
1 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2014
Annual base salary increase 5.00%lmca_AnnualBaseSalaryIncrease Ìý
Annual target cash bonus 250.00%lmca_AnnualTargetCashBonus Ìý
CEO Ìý Ìý
Employment agreement term 5 years Ìý
Officers' Compensation $ 960,750us-gaap_OfficersCompensation
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
Ìý
Target Allocation [Abstract] Ìý Ìý
2015 Ìý 16,000,000lmca_TargetAmountAllocatedInNextTwelveMonths
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
Termination Benefits Scenario Without Cause Or Good Reason [Member] | CEO Ìý Ìý
Severance payment multiple 1.5lmca_SeverancePaymentMultiple
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioWithoutCauseOrGoodReasonMember
Ìý
Pro rated severance payment 11,750,000lmca_MaximumSeverancePaymentProRata
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioWithoutCauseOrGoodReasonMember
Ìý
Fixed severance payments 17,500,000lmca_FixedSeverancePayment
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioWithoutCauseOrGoodReasonMember
Ìý
Additional vesting added upon termination 18 months Ìý
Termination Benefits Scenario With No Good Reason [Member] | CEO Ìý Ìý
Pro rated severance payment 11,750,000lmca_MaximumSeverancePaymentProRata
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioWithNoGoodReasonMember
Ìý
Termination Benefits Scenario For Death Or Disability [Member] | CEO Ìý Ìý
Severance payment multiple 1.5lmca_SeverancePaymentMultiple
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioForDeathOrDisabilityMember
Ìý
Pro rated severance payment 11,750,000lmca_MaximumSeverancePaymentProRata
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioForDeathOrDisabilityMember
Ìý
Fixed severance payments 17,500,000lmca_FixedSeverancePayment
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_StatementScenarioAxis
= lmca_TerminationBenefitsScenarioForDeathOrDisabilityMember
Ìý
Performance Options And Performance Based Restricted Stock Units [Member] | CEO Ìý Ìý
Term of option Ìý 7 years
Target Allocation [Abstract] Ìý Ìý
2016 Ìý 17,000,000lmca_TargetAmountAllocatedInYearTwo
/ us-gaap_AwardTypeAxis
= lmca_PerformanceOptionsAndPerformanceBasedRestrictedStockUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
2017 Ìý 18,000,000lmca_TargetAmountAllocatedInYearThree
/ us-gaap_AwardTypeAxis
= lmca_PerformanceOptionsAndPerformanceBasedRestrictedStockUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
2018 Ìý 19,000,000lmca_TargetAmountAllocatedInYearFour
/ us-gaap_AwardTypeAxis
= lmca_PerformanceOptionsAndPerformanceBasedRestrictedStockUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
2019 Ìý $ 20,000,000lmca_TargetAmountAllocatedInYearFive
/ us-gaap_AwardTypeAxis
= lmca_PerformanceOptionsAndPerformanceBasedRestrictedStockUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
Maximum percentage of target awards issued for performace options and RSUs Ìý 50.00%lmca_MaximumPercentageOfTargetAwardsIssuedForPerformaceOptionsAndRSUs
/ us-gaap_AwardTypeAxis
= lmca_PerformanceOptionsAndPerformanceBasedRestrictedStockUnitsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember