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Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2024
Jul. 01, 2023
Jun. 29, 2024
Jul. 01, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation arrangement by share-based payment award, percentage of outstanding stock maximum     5.00%  
Share-based compensation arrangement by share-based payment award, percentage of outstanding and available for grant, maximum     10.00%  
Compensation expense, share-based payment plans $ 3,220 $ 1,715 $ 5,127 $ 3,405
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Volatility rate     9.50% 9.60%
Risk-free interest rate     4.60% 4.10%
Expected dividend yield     0.40% 0.40%
Expected life of awards (years)     3 years 3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Exercisable, ending balance 1,273,443   1,273,443  
Stock option plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 53 $ 130
Stock options awarded, term (years)     10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Outstanding, beginning balance     1,688,831  
Granted     0  
Exercised     (264,829)  
Forfeited     (80,600)  
Outstanding, ending balance 1,343,402   1,343,402  
Exercisable, ending balance 1,273,443   1,273,443  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]        
Outstanding, weighted average exercise price, beginning balance     $ 9.04  
Granted, weighted average exercise price     0  
Exercised, weighted average exercise price     7.38  
Forfeited, weighted average exercise price     6.60  
Outstanding, weighted average exercise price, ending balance $ 9.51   9.51  
Exercisable, weighted average exercise price, ending balance $ 9.37   $ 9.37  
Outstanding, weighted average remaining contractual life (years)     3 years 6 months  
Exercisable, weighted average remaining contractual life (years)     3 years 4 months 24 days  
Outstanding, aggregate intrinsic value $ 17,048   $ 17,048  
Exercisable, aggregate intrinsic value 16,338   16,338  
Outstanding, unrecognized compensation cost $ 96   $ 96  
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized, period for recognition     10 months 24 days  
Restricted stock units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 4,059 2,394
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Unvested, beginning balance     933,843  
Granted     243,045  
Forfeited     (6,211)  
Vested     (398,760)  
Unvested, ending balance 771,917   771,917  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, beginning balance     $ 16.02  
Granted, weighted average award date value     21.95  
Forfeited, weighted average award date value     15.33  
Vested, weighted average award date value     15.17  
Unvested, weighted average award date value, ending balance $ 18.32   $ 18.32  
Weighted average remaining contractual life (years)     1 year 8 months 12 days  
Unrecognized compensation cost $ 7,698   $ 7,698  
Aggregate intrinsic value $ 17,137   $ 17,137  
Employee PRSUs [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Granted     234,485  
Unvested, ending balance 734,286   734,286  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, ending balance $ 18.29   $ 18.29  
Weighted average remaining contractual life (years)     1 year 8 months 12 days  
Unrecognized compensation cost $ 7,271   $ 7,271  
Aggregate intrinsic value $ 16,301   $ 16,301  
Nonemployee Director RSUs [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]        
Granted     8,560  
Unvested, ending balance 37,631   37,631  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]        
Unvested, weighted average award date value, ending balance $ 18.97   $ 18.97  
Weighted average remaining contractual life (years)     1 year 8 months 12 days  
Unrecognized compensation cost $ 427   $ 427  
Aggregate intrinsic value $ 836   836  
The Davey Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense, share-based payment plans     $ 1,015 $ 881
Employee stock purchase plan, service period     6 months  
Employee stock purchase plan, percentage of market price, purchase date     85.00%  
Employee stock purchase plan, discount from market price, purchase date     15.00%