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100730 - Disclosure - Income Taxes - Significant Components of Company's Deferred Tax Assets and Liabilities (Details)
(http://alphatecspine.com/20161231/taxonomy/role/DisclosureIncomeTaxesSignificantComponentsOfCompanySDeferredTaxAssetsAndLiabilitiesDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001350653 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-12-31
2015-12-31
Income Tax Disclosure [Abstract]
 
 
Deferred tax assets:
 
 
Allowances and reserves
705,000  
955,000  
Accrued expenses
1,452,000  
2,331,000  
Inventory reserves
7,071,000  
9,631,000  
Net operating loss carryforwards
37,444,000  
43,427,000  
Property and equipment
2,730,000  
2,420,000  
Intangible asset
3,291,000  
 
Stock-based compensation
1,766,000  
2,377,000  
Legal settlement
11,494,000  
11,806,000  
Goodwill
3,029,000  
3,362,000  
Income tax credit carryforwards
5,429,000  
3,235,000  
Total deferred tax assets
74,411,000  
 
79,544,000  
 
Valuation allowance
(58,202,000) 
(63,612,000) 
Total deferred tax assets, net of valuation allowance
16,209,000  
 
15,932,000  
 
Deferred tax liabilities:
 
 
Investment in foreign partnership
16,215,000  
15,467,000  
Intangible assets
 
465,000  
Total deferred tax liabilities
16,215,000  
 
15,932,000  
 
Net deferred tax assets (liabilities)
(6,000) 
 
0