The Company and Basis of Presentation	12 Months Ended
Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
The Company and Basis of Presentation	1. The Company and Basis of Presentation The Company Alphatec Holdings, Inc. (“Alphatec,” “Alphatec Holdings” or the “Company”), through its wholly owned subsidiary, Alphatec Spine, Inc. and its subsidiaries (“Alphatec Spine”), is a medical technology company focused on the design, development and promotion of products for the surgical treatment of spine disorders. The Company has a comprehensive product portfolio and pipeline that addresses the cervical, thoracolumbar and intervertebral regions of the spine and covers a variety of spinal disorders and surgical procedures. The Company’s principal product offerings are focused on the U.S. market for fusion-based spinal disorder solutions. Prior to September 1, 2016, the Company marketed its products in the U.S. market and in over 50 international markets through the distribution channels of Alphatec Spine and its affiliate, Scient’x S.A.S., and its subsidiaries (“Scient’x”), via a direct sales force in Italy and the United Kingdom and via independent distributors in the rest of Europe, the Middle East and Africa. In South America and Latin America, the Company conducted its operations through its Brazilian subsidiary, Cibramed Productos Medicos. In Japan, the Company marketed its products through its subsidiary, Alphatec Pacific, Inc. and its subsidiaries (“Alphatec Pacific”). On September 1, 2016, the Company completed the sale of its international distribution operations and agreements to Globus Medical Ireland, Ltd., a subsidiary of Globus Medical, Inc., and its affiliated entities (collectively “Globus”), including the Company’s wholly-owned subsidiaries in Japan, Brazil, Australia and Singapore and substantially all of the assets of the Company’s other sales operations in the United Kingdom and Italy (collectively, the “International Business”), pursuant to a purchase and sale agreement, dated as of July 25, 2016 (as amended, the “Purchase and Sale Agreement”) (the “Globus Transaction”). As a result of the Globus Transaction, the Company's International Business has been excluded from continuing operations for all periods presented in this report and is reported as discontinued operations. See Note 4 for additional information on the divestiture of the International Business. The sale of the international operations represents a strategic shift and has a significant impact on the Company's operations and financial results. Basis of Presentation The consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America ("GAAP") and include the accounts of Alphatec and Alphatec Spine and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The Company operates in one reportable business segment. On August 24, 2016, the Company filed a certificate of amendment to its certificate of incorporation with the Secretary of State of the state of Delaware to effectuate a 1-for-12 reverse stock split of the Company’s issued and outstanding common stock. The accompanying consolidated financial statements and notes thereto give retrospective effect to the reverse stock split for all periods presented. All issued and outstanding common stock, options exercisable for common stock, warrants exercisable for common stock, restricted stock units, and per share amounts contained in the Company’s consolidated financial statements have been retroactively adjusted to reflect this reverse stock split for all periods presented. As a result of the sale of the International Business, the Company has retrospectively revised the consolidated statements of operations for the years ended December 31, 2016, 2015 and 2014 and the consolidated balance sheets as of December 31, 2016 and 2015, to reflect the financial results from the International Business, and the related assets and liabilities, as discontinued operations. The Company has incurred significant net losses since inception and has relied on its ability to fund its operations through revenues from the sale of its products, equity financings and debt financings. As the Company has historically incurred losses, successful transition to profitability is dependent upon achieving a level of revenues adequate to support the Company’s cost structure. This may not occur and, unless and until it does, the Company will continue to need to raise additional capital. Operating losses and negative cash flows may continue for at least the next year as the Company continues to incur costs related to the execution of its operating plan and introduction of new products. For the year ended December 31, 2016, the Company has adopted, as required, FASB Accounting Standard Codification (ASC) Topic 205-40, Presentation of Financial Statements – Going Concern, which requires that management evaluate whether there are relevant conditions and events that in aggregate raise substantial doubt about the entity’s ability to continue as a going concern and to meet its obligations as they become due within one year from the date that the financial statements are issued. The Company’s Board approved annual operating plan projects that its existing working capital at December 31, 2016 of $32.7 million (including cash of $19.6 million), along with the proceeds of the $18.9 million private placement that closed on March 29, 2017 (see Note 15) and the amendments to its debt facilities (see Note 15), allows the Company to fund its operations through one year subsequent to the date the financial statements are issued. The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern and do not include any adjustments that might result from the outcome of this uncertainty. A going concern basis of accounting contemplates the recovery of the Company’s assets and the satisfaction of its liabilities in the normal course of business.

1. The Company and Basis of Presentation

The Company

Alphatec Holdings, Inc. (“Alphatec,” “Alphatec Holdings” or the “Company”), through its wholly owned subsidiary, Alphatec Spine, Inc. and its subsidiaries (“Alphatec Spine”), is a medical technology company focused on the design, development and promotion of products for the surgical treatment of spine disorders. The Company has a comprehensive product portfolio and pipeline that addresses the cervical, thoracolumbar and intervertebral regions of the spine and covers a variety of spinal disorders and surgical procedures. The Company’s principal product offerings are focused on the U.S. market for fusion-based spinal disorder solutions.

Prior to September 1, 2016, the Company marketed its products in the U.S. market and in over 50 international markets through the distribution channels of Alphatec Spine and its affiliate, Scient’x S.A.S., and its subsidiaries (“Scient’x”), via a direct sales force in Italy and the United Kingdom and via independent distributors in the rest of Europe, the Middle East and Africa. In South America and Latin America, the Company conducted its operations through its Brazilian subsidiary, Cibramed Productos Medicos. In Japan, the Company marketed its products through its subsidiary, Alphatec Pacific, Inc. and its subsidiaries (“Alphatec Pacific”).

On September 1, 2016, the Company completed the sale of its international distribution operations and agreements to Globus Medical Ireland, Ltd., a subsidiary of Globus Medical, Inc., and its affiliated entities (collectively “Globus”), including the Company’s wholly-owned subsidiaries in Japan, Brazil, Australia and Singapore and substantially all of the assets of the Company’s other sales operations in the United Kingdom and Italy (collectively, the “International Business”), pursuant to a purchase and sale agreement, dated as of July 25, 2016 (as amended, the “Purchase and Sale Agreement”) (the “Globus Transaction”). As a result of the Globus Transaction, the Company's International Business has been excluded from continuing operations for all periods presented in this report and is reported as discontinued operations. See Note 4 for additional information on the divestiture of the International Business. The sale of the international operations represents a strategic shift and has a significant impact on the Company's operations and financial results.

Basis of Presentation

The consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America ("GAAP") and include the accounts of Alphatec and Alphatec Spine and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The Company operates in one reportable business segment.

On August 24, 2016, the Company filed a certificate of amendment to its certificate of incorporation with the Secretary of State of the state of Delaware to effectuate a 1-for-12 reverse stock split of the Company’s issued and outstanding common stock. The accompanying consolidated financial statements and notes thereto give retrospective effect to the reverse stock split for all periods presented. All issued and outstanding common stock, options exercisable for common stock, warrants exercisable for common stock, restricted stock units, and per share amounts contained in the Company’s consolidated financial statements have been retroactively adjusted to reflect this reverse stock split for all periods presented.

As a result of the sale of the International Business, the Company has retrospectively revised the consolidated statements of operations for the years ended December 31, 2016, 2015 and 2014 and the consolidated balance sheets as of December 31, 2016 and 2015, to reflect the financial results from the International Business, and the related assets and liabilities, as discontinued operations.

The Company has incurred significant net losses since inception and has relied on its ability to fund its operations through revenues from the sale of its products, equity financings and debt financings. As the Company has historically incurred losses, successful transition to profitability is dependent upon achieving a level of revenues adequate to support the Company’s cost structure. This may not occur and, unless and until it does, the Company will continue to need to raise additional capital. Operating losses and negative cash flows may continue for at least the next year as the Company continues to incur costs related to the execution of its operating plan and introduction of new products.

For the year ended December 31, 2016, the Company has adopted, as required, FASB Accounting Standard Codification (ASC) Topic 205-40, Presentation of Financial Statements – Going Concern, which requires that management evaluate whether there are relevant conditions and events that in aggregate raise substantial doubt about the entity’s ability to continue as a going concern and to meet its obligations as they become due within one year from the date that the financial statements are issued.

The Company’s Board approved annual operating plan projects that its existing working capital at December 31, 2016 of $32.7 million (including cash of $19.6 million), along with the proceeds of the $18.9 million private placement that closed on March 29, 2017 (see Note 15) and the amendments to its debt facilities (see Note 15), allows the Company to fund its operations through one year subsequent to the date the financial statements are issued.

The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern and do not include any adjustments that might result from the outcome of this uncertainty. A going concern basis of accounting contemplates the recovery of the Company’s assets and the satisfaction of its liabilities in the normal course of business.