Current report filing

Cover

v3.21.2
Cover
Sep. 15, 2021
Entity Addresses [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 15, 2021
Current Fiscal Year End Date --12-31
Entity File Number 001-39644
Entity Registrant Name ARCHAEA ENERGY INC.
Entity Central Index Key 0001823766
Entity Tax Identification Number 85-1908962
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 500 Technology Drive
Entity Address, Address Line Two Second Floor
Entity Address, City or Town Canonsburg
Entity Address, State or Province PA
Entity Address, Postal Zip Code 15317
City Area Code (346)
Local Phone Number 708-8272
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Class A Common Stock, par value $0.0001 per share  
Entity Addresses [Line Items]  
Title of 12(b) Security Class A Common Stock, par value $0.0001 per share
Trading Symbol LFG
Security Exchange Name NYSE
Warrants, each exercisable for one share of Class A Common Stock at a price of $11.50  
Entity Addresses [Line Items]  
Title of 12(b) Security Warrants, each exercisable for one share of Class A Common Stock at a price of $11.50
Trading Symbol LFG WS
Security Exchange Name NYSE
Former Address [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One Rice Acquisition Corp.
Entity Address, Address Line Two 102 East Main Street
Entity Address, Address Line Three Second Story
Entity Address, City or Town Carnegie
Entity Address, State or Province PA
Entity Address, Postal Zip Code 15106