v3.26.3
Cover
Sep. 24, 2026
Cover [Abstract]  
Document Type 8-K
Document Period End Date Sep. 24, 2026
Registrant Name CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-15943
Entity Tax Identification Number 06-1397316
Entity Address, Address Line One 251 Ballardvale Street
Entity Address, City or Town Wilmington
Entity Address, State or Province MA
Entity Address, Postal Zip Code 01887
Title of 12(b) Security Common stock, $0.01 par value
Trading Symbol CRL
Security Exchange Name NYSE
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Central Index Key 0001100682
Amendment Flag false
City Area Code 781
Local Phone Number 222-6000