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Cover
Nov. 12, 2025
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Nov. 12, 2025
Entity Registrant Name GLOBAL WATER RESOURCES, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-37756
Entity Tax Identification Number 90-0632193
Entity Address, Address Line One 21410 N. 19th Avenue #220
Entity Address, Postal Zip Code 85027
Entity Address, State or Province AZ
Entity Address, City or Town Phoenix,
City Area Code 480
Local Phone Number 360-7775
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol GWRS
Security Exchange Name NASDAQ
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001434728