v3.22.2.2
Cover Page
Dec. 02, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Dec. 02, 2022
Entity Registrant Name Glatfelter Corporation
Entity Incorporation, State or Country Code PA
Entity File Number 001-03560
Entity Tax Identification Number 23-0628360
Entity Address, Postal Zip Code 28209
City Area Code 704
Local Phone Number 885-2555
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol GLT
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0000041719
Amendment Flag false
Current Fiscal Year End Date --12-31