Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.1.9
Subsequent Events (Details) (USD $)
0 Months Ended 3 Months Ended
Apr. 09, 2015
Aug. 16, 2013
Mar. 31, 2015
Term Loan | Subsequent Event      
Subsequent Event [Line Items]      
Extinguishment of debt $ 492,000,000us-gaap_ExtinguishmentOfDebtAmount
/ us-gaap_LongtermDebtTypeAxis
= mtii_TermLoanMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Term Loan Due April 2022 | Term Loan | Subsequent Event      
Subsequent Event [Line Items]      
Debt issue amount 550,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= mtii_TermLoanDueApril2022Member
/ us-gaap_LongtermDebtTypeAxis
= mtii_TermLoanMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Revolving Credit Facility Due 2017 | Revolving Credit Facility      
Subsequent Event [Line Items]      
Basis spread on variable debt   3.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mtii_RevolvingCreditFacilityDue2017Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
 
Floor on variable debt   1.00%mtii_DebtInstrumentFloorOfVariableRateBasis
/ us-gaap_DebtInstrumentAxis
= mtii_RevolvingCreditFacilityDue2017Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
 
Revolving Credit Facility Due 2017 | Revolving Credit Facility | Subsequent Event      
Subsequent Event [Line Items]      
Repayments of line of credit $ 50,000,000us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_DebtInstrumentAxis
= mtii_RevolvingCreditFacilityDue2017Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
LIBOR | Term Loan Due April 2022 | Term Loan | Subsequent Event      
Subsequent Event [Line Items]      
Basis spread on variable debt 3.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mtii_TermLoanDueApril2022Member
/ us-gaap_LongtermDebtTypeAxis
= mtii_TermLoanMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
   
Floor on variable debt 1.00%mtii_DebtInstrumentFloorOfVariableRateBasis
/ us-gaap_DebtInstrumentAxis
= mtii_TermLoanDueApril2022Member
/ us-gaap_LongtermDebtTypeAxis
= mtii_TermLoanMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
   
LIBOR | Revolving Credit Facility Due 2017 | Revolving Credit Facility      
Subsequent Event [Line Items]      
Basis spread on variable debt     3.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= mtii_RevolvingCreditFacilityDue2017Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
Floor on variable debt     1.00%mtii_DebtInstrumentFloorOfVariableRateBasis
/ us-gaap_DebtInstrumentAxis
= mtii_RevolvingCreditFacilityDue2017Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember