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Acquired Properties - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Asset Acquisition [Abstract] |  |
Transaction costs capitalized | $ 0 | $ 63

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- Definition Asset Acquisition [Abstract] + References No definition available. + Details
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Namespace Prefix: | ivtp_
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Balance Type: | na
Period Type: | duration

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- Definition Asset Acquisition, Transaction Costs Capitalized During the Period + References No definition available. + Details
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