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Network
100720 - Disclosure - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)
(http://alphatecspine.com/20161231/taxonomy/role/DisclosureIncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails)
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]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Income Tax Disclosure [Abstract]
 
 
 
Federal statutory rate
(35.00%) 
(35.00%) 
(35.00%) 
Adjustments for tax effects of:
 
 
 
State taxes, net
(1.70%) 
(0.30%) 
(3.90%) 
Stock-based compensation
2.30%  
0.40%  
(239.70%) 
Foreign taxes
0.10%  
0.10%  
(17.20%) 
Tax credits
 
(0.10%) 
123.30%  
Deemed foreign dividend
 
0.10%  
0.00%  
Fair market value adjustments
0.40%  
(1.60%) 
293.40%  
Intercompany debt forgiveness and other permanent adjustments
0.30%  
0.10%  
(29.90%) 
Goodwill impairment
 
30.50%  
0.00%  
Tax rate adjustment
0.30%  
0.30%  
(16.30%) 
Uncertain tax positions
(0.10%) 
 
(54.00%) 
Other
0.90%  
(4.30%) 
913.20%  
Valuation allowance
17.50%  
9.10%  
(1,065.60%) 
Effective income tax rate
(15.00%) 
 
(0.70%) 
 
(131.70%)