v3.26.1
Cover
Aug. 03, 2026
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Aug. 03, 2026
Entity Registrant Name Innovative Industrial Properties, Inc.
Entity Incorporation, State or Country Code MD
Entity File Number 001-37949
Entity Tax Identification Number 81-2963381
Entity Address, Address Line One 1389 Center Drive
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Park City
Entity Address, State or Province UT
Entity Address, Postal Zip Code 84098
City Area Code 858
Local Phone Number 997-3332
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Central Index Key 0001677576
Amendment Flag false
Common Stock, par value $0.001 per share  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, par value $0.001 per share
Trading Symbol IIPR
Security Exchange Name NYSE
Series A Preferred Stock, par value $0.001 per share  
Document Information [Line Items]  
Title of 12(b) Security Series A Preferred Stock, par value $0.001 per share
Trading Symbol IIPR-PA
Security Exchange Name NYSE