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Stock-Based Compensation Plans - Restricted Stock Activity (Details) - Restricted Stock
3 Months Ended
Apr. 04, 2021
$ / shares
shares
Shares  
Beginning balance (in shares) | shares 43,405
Granted (in shares) | shares 10,227
Vested (in shares) | shares (15,423)
Forfeited/Canceled (in shares) | shares (394)
Ending balance (in shares) | shares 37,815
Weighted average fair value per share  
Beginning balance (in USD per share) | $ / shares $ 228.80
Granted (in USD per share) | $ / shares 334.92
Vested (in USD per share) | $ / shares 176.64
Forfeited/Canceled (in USD per share) | $ / shares 176.64
Ending balance (in USD per share) | $ / shares $ 279.31