Line of Credit Facility, Extension Option, Period

No definition available.

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Namespace Prefix:	ivtp_
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Balance Type:	na
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- Definition

Line of Credit Facility, Number of Extension Options

+ References

No definition available.

+ Details

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

- Definition

Amount of short-term and long-term debt and lease obligation.

+ References

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-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The average effective interest rate during the reporting period.

+ References

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+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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+ Details

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Balance Type:	na
Period Type:	instant

- 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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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Debt - Narrative (Details)			3 Months Ended	12 Months Ended
Debt - Narrative (Details)	Jan. 03, 2020 USD ($)	Dec. 21, 2018 USD ($) option	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Debt, net			$ 681,662,000	$ 572,850,000
Mortgages Payable
Debt Instrument [Line Items]
Total mortgages payable, net			$ 133,908,000
Weighted average interest rate (percent)			4.34%
Mortgages Payable \| Minimum
Debt Instrument [Line Items]
Interest rate (percent)			3.49%	3.49%
Mortgages Payable \| Maximum
Debt Instrument [Line Items]
Interest rate (percent)			5.49%	5.49%
Line of Credit
Debt Instrument [Line Items]
Total mortgages payable, net			$ 547,754,000
Line of Credit \| Unsecured Term Loan
Debt Instrument [Line Items]
Total mortgages payable, net			397,754,000	$ 397,529,000
Revolving Credit Facility \| Revolving Credit Facility, Amended and Restated
Debt Instrument [Line Items]
Debt, net			150,000,000	$ 0
Debt instrument, face amount		$ 350,000,000
Proceeds from lines of credit			$ 150,000,000
Interest rate			2.01%
Debt instrument, term		4 years
Number of extension options \| option		2
Extension option on line of credit, period		6 months
Unused commitment fee			0.15%	0.15%
Remaining borrowing capacity			$ 200,000,000
Campus Marketplace, San Marcos, CA \| Non Recourse, Mortgage Loan
Debt Instrument [Line Items]
Extinguishment of debt, amount	$ 41,000,000
One-month LIBOR \| Revolving Credit Facility \| Revolving Credit Facility, Amended and Restated
Debt Instrument [Line Items]
Basis spread on variable rate			1.05%