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Number of leases entered into with the tenant by the company.

No definition available.

Name:	iipr_NumberOfLeases
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Number of properties.

No definition available.

Name:	iipr_NumberOfProperties
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents information about number of properties excluded from lease.

No definition available.

Name:	iipr_NumberOfPropertiesExcludedFromLease
Namespace Prefix:	iipr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Number of tenants.

No definition available.

Name:	iipr_NumberOfTenants
Namespace Prefix:	iipr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents information about tenants who are excluded from lease.

No definition available.

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Data Type:	xbrli:integerItemType
Balance Type:	na
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The number of states in which properties are owned.

No definition available.

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Namespace Prefix:	iipr_
Data Type:	xbrli:integerItemType
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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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 310
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478785/954-310-50-2

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
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-Topic 275
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Namespace Prefix:
Data Type:	na
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