v3.26.1
Cover
Jul. 31, 2026
Apr. 30, 2026
Cover [Abstract]    
Document Type 8-K  
Document Period End Date Jul. 31, 2026  
Entity Registrant Name iRhythm Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-37918  
Entity Tax Identification Number 41-3421287  
Entity Address, Address Line One 699 8th Street  
Entity Address, Address Line Two Suite 600  
Entity Address, City or Town San Francisco  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94103  
City Area Code 415  
Local Phone Number 632-5700  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security   Common Stock, Par Value $0.001 Per Share
Trading Symbol   IRTC
Security Exchange Name   NASDAQ
Entity Emerging Growth Company false  
Entity Central Index Key 0001388658  
Amendment Flag false