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Stock-Based Compensation (Tables)
3 Months Ended
Apr. 01, 2023
Stock-Based Compensation [Abstract]  
Summary of Recognized Stock-based Compensation Expense
The following table summarizes stock-based compensation expense recognized:

   
Fiscal quarters ended
 
   
April 1, 2023
   
April 2, 2022
 
             
Restricted stock units ("RSUs")
 
$
2,858
   
$
3,620
 
Phantom stock units
   
107
     
222
 
Total
 
$
2,965
   
$
3,842
 
Summary of Unrecognized Compensation Cost and Weighted Average Remaining Amortization Periods
The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at April 1, 2023 (amortization periods in years):

 
Unrecognized
Compensation
Cost
   
Weighted
Average
Remaining
Amortization
Periods
 
             
Restricted stock units
 
$
10,041
     
0.9
 
Phantom stock units
   
-
     
n/a
 
Total
 
$
10,041
         
RSU Activity
RSU activity under the Company's 2007 Stock Incentive Program (the "2007 Program") as of April 1, 2023 and changes during the three fiscal months then ended are presented below (number of RSUs in thousands):

 
Number of
RSUs
   
Weighted
Average
Grant-date
Fair Value per
Unit
 
Outstanding:
           
January 1, 2023
   
894
   
$
19.73
 
Granted
   
419
     
23.05
 
Vested*
   
(328
)
   
18.76
 
Cancelled or forfeited
   
-
     
-
 
Outstanding at April 1, 2023
   
985
   
$
21.47
 
                 
Expected to vest at April 1, 2023
   
991
         
* The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.
RSUs with Performance-Based Vesting Criteria RSUs with performance-based and market-based vesting criteria are expected to vest as follows (number of RSUs in thousands):

Vesting Date
 
Expected
to Vest
   
Not Expected
to Vest
   
Total
 
January 1, 2024
   
165
     
-
     
165
 
January 1, 2025
   
168
     
-
     
168
 
January 1, 2026
   
178
     
-
     
178
 
Phantom Stock Unit Activity Under the Phantom Stock Plan
Phantom Stock Units

Phantom stock unit activity under the 2007 Program as of April 1, 2023 and changes during the three fiscal months then ended are presented below (number of phantom stock units in thousands):

 
Number of
units
 
Grant-date
Fair Value per
Unit
 
Outstanding:
         
January 1, 2023
   
226
     
Granted
   
5
   
$
21.48
 
Dividend equivalents issued
   
1
         
Redeemed for common stock*
    (94 )        
Outstanding at April 1, 2023
   
138
         
* The number of phantom stock units redeemed for common stock includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.