v3.26.1
Document and Entity Information
3 Months Ended
Mar. 31, 2026
Cover [Abstract]  
Entity Registrant Name ALPHATEC HOLDINGS, INC.
Entity Central Index Key 0001350653
Current Fiscal Year End Date --12-31
Entity Filer Category Large Accelerated Filer
Document Type 10-Q
Trading Symbol ATEC
Document Period End Date Mar. 31, 2026
Document Fiscal Year Focus 2026
Document Fiscal Period Focus (Q1,Q2,Q3,FY) Q1
Entity Current Reporting Status Yes
Amendment Flag false
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity File Number 000-52024
Entity Tax Identification Number 20-2463898
Entity Address, Address Line One 1950 Camino Vida Roble
Entity Address, City or Town Carlsbad
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92008
City Area Code 760
Local Phone Number 431-9286
Document Quarterly Report true
Document Transition Report false
Entity Incorporation, State or Country Code DE
Entity Interactive Data Current Yes
Title of 12(b) Security Common stock, par value $0.0001 per share
Security Exchange Name NASDAQ