XML 42 R31.htm IDEA: XBRL DOCUMENT v3.19.1

Organization (Details) ft² in Millions	3 Months Ended
	Mar. 31, 2019 ft² joint_venture property	Mar. 31, 2018 ft² joint_venture property
Entity Information [Line Items]
Number of operating real estate joint ventures | joint_venture	2	2
Corporate Joint Venture
Entity Information [Line Items]
Number of retail properties | joint_venture	1	1
Area of real estate | ft²	2.6	3.0
Number of managed assets	13	14
Retail
Entity Information [Line Items]
Number of retail properties	1
Area of real estate | ft²	9.6	11.2
Retail
Entity Information [Line Items]
Number of retail properties	60	67

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 Joint Ventures

+ References

No definition available.

+ Details

Name:	ivtp_NumberOfJointVentures
Namespace Prefix:	ivtp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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

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

X

- Details

Name:	us-gaap_RealEstatePropertiesAxis=srt_RetailSiteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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