XML 43 R28.htm IDEA: XBRL DOCUMENT v3.7.0.1

Organization (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2017 Property	Dec. 31, 2016 Property Properties	Jun. 30, 2017 Properties	Jun. 30, 2017 ft²	Jun. 30, 2017
Entity Information [Line Items]
Number of real estate properties | Properties		72	78
Retail [Member]
Entity Information [Line Items]
Number of real estate properties | Properties		71	70
Square Footage				12,204,807
Non-core [Member]
Entity Information [Line Items]
Number of real estate properties	1	1		322,326
Retail [Member]
Entity Information [Line Items]
Square Footage				742,000
Assets Leased to Others [Member] | Retail [Member]
Entity Information [Line Items]
Real Estate Property, Square Footage Occupied, Percent					93.30%
Assets Leased to Others [Member] | Non-core [Member]
Entity Information [Line Items]
Real Estate Property, Square Footage Occupied, Percent					51.00%
Corporate Joint Venture [Member]
Entity Information [Line Items]
Number of real estate properties | Property	1
Number of Managed Assets | Property	15	15
Square Footage				2,977,302

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:	dei_EntityInformationLineItems
Namespace Prefix:	dei_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of Managed Assets

+ References

No definition available.

+ Details

Name:	ivtp_NumberofManagedAssets
Namespace Prefix:	ivtp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Real Estate Property, Square Footage Occupied, Percent

+ References

No definition available.

+ Details

Name:	ivtp_RealEstatePropertySquareFootageOccupiedPercent
Namespace Prefix:	ivtp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_RetailSiteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_NonCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=us-gaap_RetailSiteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_AssetsLeasedToOthersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: