XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Commitments and Contingencies (Details) | Mar. 31, 2018 USD ($)
--- | ---
University House Communities Group, Inc |
Loss Contingencies [Line Items] |
Loss contingency, range of possible loss, portion not accrued | $ 5,000,000

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 05 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6395354&loc=d3e12631-108344 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossPortionNotAccrued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LitigationCaseAxis=ivtp_UniversityHouseCommunitiesGroupIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |