Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v2.4.1.9
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Trade receivables, allowance for doubtful accounts (in dollars) $ 2,296us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 2,120us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Property and equipment, accumulated depreciation (in dollars) 26,551us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment 24,254us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Subscriber accounts, accumulated amortization (in dollars) 794,883us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization 736,824us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Dealer network and other intangible assets, accumulated amortization (in dollars) $ 59,052mtii_OtherIntangibleAssetsAccumulatedAmortization $ 54,077mtii_OtherIntangibleAssetsAccumulatedAmortization
Par value of shares issued as a consideration (in dollars per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized shares 1,000us-gaap_CommonStockSharesAuthorized 1,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares 1,000us-gaap_CommonStockSharesIssued 1,000us-gaap_CommonStockSharesIssued
Common stock, outstanding shares 1,000us-gaap_CommonStockSharesOutstanding 1,000us-gaap_CommonStockSharesOutstanding