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1046 - Disclosure - Stock Incentive Plans (Tables)
(http://www.alsk.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001089511 (http://www.sec.gov/CIK)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
 
Summary of Activity for Restricted Stock Units, Long-Term Incentive Awards and Non-Employee Director Stock Compensation

The following table summarizes the RSU, LTIP and non-employee director stock compensation activity for the year ended December 31, 2016:

 

     Number of
Shares		      Weighted
Average
Grant-Date
Fair
Value		  

Nonvested at December 31, 2015

      1,186      $ 1.83  

Granted

      925      $ 1.74  

Vested

      (697 )     $ 1.81  

Canceled or expired

      —        $ —    
  

 

 

     

Nonvested at December 31, 2016

      1,414      $ 1.79  
  

 

 

     
  
Summary of Activity for Performance Share Units

The following table summarizes PSU activity for the year ended December 31, 2016:

 

     Number of
Shares		      Weighted
Average
Grant-Date
Fair
Value		  

Nonvested at December 31, 2015

      984      $ 1.78  

Granted

      803      $ 1.74  

Vested

      (432 )     $ 1.76  

Canceled or expired

      (21 )     $ 1.84  
  

 

 

     

Nonvested at December 31, 2016

      1,334      $ 1.77  
  

 

 

     
  
Summary of Assumptions Used for Valuation of Equity Instruments Granted

Assumptions used for valuation of equity instruments awarded during the years ended December 31, 2016, 2015 and 2014 are as follows:

 

     2016     2015     2014  

Restricted stock:

       

Risk free rate

      0 %      0 %      0.0% - 0.23 % 

Quarterly dividend

    $ —       $ —         $—    

Expected, per annum, forfeiture rate

      9 %      9 %      9 % 
  
Share-Based Compensation

Selected information on equity instruments and share-based compensation under the plan for the years ended December 31, 2016, 2015 and 2014 is as follows:

 

     Years Ended
December 31,		  
     2016      2015      2014  

Total compensation cost for share-based payments

    $ 2,830      $ 2,008      $ 2,511  

Weighted average grant-date fair value of equity instruments granted

    $ 1.74      $ 1.82      $ 1.87  

Total fair value of shares vested during the period

    $ 2,029      $ 2,615      $ 2,935  

Unamortized share-based payments

    $ 1,562      $ 1,421      $ 1,392  

Weighted average period in years to be recognized as expense

      1.36        1.39        1.45