Subsequent Events (Details) - Subsequent Event - Kings Garden	Aug. 04, 2022 USD ($)	Jul. 13, 2022 USD ($) property
Subsequent Event [Line Items]
Number of leased properties \| property		6
Monetary default		$ 2,200,000
Base rent and property management fee		1,800,000
Insurance premium (excluding late charges and default interest)		382,000
Security deposits		$ 2,300,000
Security deposits remaining	$ 373,000

The amount of default in base rent and property management fees receivable in lessor operating lease.

No definition available.

Name:	iipr_LessorOperatingLeaseBaseRentAndPropertyManagementFeeReceivableDefault
Namespace Prefix:	iipr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of default in insurance premiums receivable in lessor operating lease.

+ References

No definition available.

+ Details

Name:	iipr_LessorOperatingLeaseInsurancePremiumReceivableDefault
Namespace Prefix:	iipr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of default in receivables in lessor operating lease.

+ References

No definition available.

+ Details

Name:	iipr_LessorOperatingLeaseReceivableDefault
Namespace Prefix:	iipr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Number of leased properties.

+ References

No definition available.

+ Details

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

- Definition

The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_SecurityDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=iipr_KingsGardenLeasesInSouthernCaliforniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: