v3.25.1
Document and Entity Information
Jun. 06, 2025
Document and Entity Information [Abstract]  
Document Type 8-K
Document Period End Date Jun. 06, 2025
Entity File Number 1-33891
Entity Registrant Name ORION GROUP HOLDINGS, INC.
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 26-0097459
Entity Address, Address Line One 12000 Aerospace
Entity Address, Adress Line Two Suite 300
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77034
City Area Code 713
Local Phone Number 852-6500
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 per share
Trading Symbol ORN
Security Exchange Name NYSE
Entity Emerging Growth Company false
Entity Central Index Key 0001402829
Amendment Flag false