XML 19 R46.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Long-Term Deferred Expenses - Summary of Long-Term Deferred Expenses (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015
Deferred Expenses Non Current [Line Items] |
Deferred costs | $ 580us-gaap_DeferredCosts
Rent Of Advertising Space [Member] |
Deferred Expenses Non Current [Line Items] |
Weighted average amortization period | 5 years
Deferred costs | 358us-gaap_DeferredCosts / us-gaap_NatureOfExpenseAxis = idi_RentOfAdvertisingSpaceMember
Concession Approval Fees [Member] |
Deferred Expenses Non Current [Line Items] |
Weighted average amortization period | 3 years
Deferred costs | $ 222us-gaap_DeferredCosts / us-gaap_NatureOfExpenseAxis = idi_ConcessionApprovalFeesMember

X
- Details
Name: | idi_DeferredExpensesNonCurrentLineItems
Namespace Prefix: | idi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted Average Amortization Period + References No definition available. + Details
Name: | idi_WeightedAverageAmortizationPeriod
Namespace Prefix: | idi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sum of the carrying amounts of deferred costs that are expected to be recognized as a charge against earnings in periods after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DeferredCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_NatureOfExpenseAxis=idi_ConcessionApprovalFeesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_NatureOfExpenseAxis=idi_RentOfAdvertisingSpaceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |