v3.19.3
Cover
Oct. 30, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 30, 2019
Entity File Number 001-34223
Entity Registrant Name CLEAN HARBORS, INC.
Entity Central Index Key 0000822818
Entity Tax Identification Number 04-2997780
Entity Incorporation, State or Country Code MA
Entity Address, Address Line One 42 Longwater Drive
Entity Address, City or Town Norwell
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02061-9149
City Area Code 781
Local Phone Number 792-5000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol CLH
Security Exchange Name NYSE
Entity Emerging Growth Company false