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Cover Page Document
Dec. 05, 2024
Cover [Abstract]  
Document Type 8-K
Document Period End Date Dec. 05, 2024
Entity Registrant Name Casella Waste Systems, Inc.
Title of 12(b) Security Class A common stock, $0.01 par value per share
Trading Symbol CWST
Security Exchange Name NASDAQ
Entity Address, Address Line One 25 Greens Hill Lane,
Entity Address, City or Town Rutland,
Entity Address, State or Province VT
City Area Code 802
Local Phone Number 775-0325
Written Communications false
Entity Emerging Growth Company false
Entity File Number 000-23211
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 03-0338873
Entity Address, Postal Zip Code 05701
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0000911177
Amendment Flag false