XML 28 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Mar. 09, 2020
Jun. 30, 2019
Cover [Abstract]      
Entity Registrant Name ALPHATEC HOLDINGS, INC.    
Entity Central Index Key 0001350653    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Document Type 10-K    
Trading Symbol ATEC    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus (Q1,Q2,Q3,FY) FY    
Amendment Flag false    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Common Stock, Shares Outstanding   62,994,221  
Entity Public Float     $ 126.2
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Shell Company false    
Entity File Number 000-52024    
Entity Tax Identification Number 20-2463898    
Entity Address, Address Line One 5818 El Camino Real    
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 Annual 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    
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

The following documents (or parts thereof) are incorporated by reference into the following parts of this Form 10-K: Certain information required in Part III of this Annual Report on Form 10-K is incorporated from the Registrant’s Proxy Statement for the 2020 Annual Meeting of Stockholder.