v3.26.1
Employee Benefit Plan, Schedule, Asset Held for Investment (Tables) - EBP 001
 12 Months Ended
Dec. 31, 2025
USD ($)
shares
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Schedule of Asset Held for Investment
The Davey 401KSOP and ESOP
EIN: 34-0176110              Plan Number: 004
Schedule H, Line 4i--Schedule of Assets
(Held at End of Year)
December 31, 2025
(a)(b)(c)(d)(e)
Identity of Issue, Borrower,
Lessor or Similar Party		Description of InvestmentCostCurrent
Value
*
The Davey Tree Expert Company (a)
Common Stock; 7,381,062 shares
$34,041,390 $203,717,312 
Mutual Funds:
Vanguard
Vanguard Target Retirement Income
Fund— 203,485 shares
 **2,822,336 
Vanguard
Vanguard Target Retirement 2020
Fund— 93,498 shares
 **2,566,526 
Vanguard
Vanguard Target Retirement 2025
Fund—615,504 shares
 **12,279,299 
Vanguard
Vanguard Target Retirement 2030
Fund—443,941 shares
 **18,792,015 
Vanguard
Vanguard Target Retirement 2035
Fund—696,270 shares
 **19,063,868 
Vanguard
Vanguard Target Retirement 2040
Fund—595,482 shares
 **29,744,318 
Vanguard
Vanguard Target Retirement 2045
Fund—806,993 shares
 **28,034,943 
Vanguard
Vanguard Target Retirement 2050
Fund—387,897 shares
 **22,994,535 
Vanguard
Vanguard Target Retirement 2055
Fund—266,983 shares
 **17,663,567 
Vanguard
Vanguard Target Retirement 2060
Fund—179,847 shares
 **10,967,054 
Vanguard
Vanguard Target Retirement 2065
Fund—62,136 shares
 **2,487,303 
Vanguard
Vanguard Target Retirement 2070
Fund—7,437 shares
 **236,637 
JPMorgan
JPMorgan Large Cap Growth
Fund—271,945 shares
 **23,506,901 
American
American EuroPacific Growth
Fund—94,352 shares
 **5,715,852 
American
American New Perspective
Fund—265,119 shares
 **18,735,986 
Vanguard
Vanguard Total Stock Market Index Adm
Fund—99,419 shares
 **16,225,218 
Dodge & Cox
Dodge & Cox Income
Fund—585,955 shares
 **7,535,382 
T. Rowe Price
T. Rowe Price Small Cap Stock
Fund—280,700 shares
 **16,011,137 
Pooled Separate Accounts:
*Principal Global Investors
Principal Midcap S&P 400 Index Account-Z
Fund—62,294 shares
**7,323,879 
*Principal Global Investors
Principal LargeCap S&P 500 Index Account-Z
Fund—50,151 shares
**19,579,004 
Common Collective Trust Funds:
*Principal Global Investors
Morley Capital Management - Principal Stable Value Z
Fund—310,948 units
**8,135,792 
*Principal Global Investors
Principal MFS Value CIT N
Fund—124,542 units
**4,470,778 
Investments at Fair Value$498,609,642 
  * A party-in-interest as defined by ERISA
** Cost information is not required for participant-directed investments
 (a) Nonparticipant and participant directed
Entity Tax Identification Number 34-0176110
EBP, Plan Number 004
EBP, Asset Held for Investment, Party-in-Interest [true false] true
EBP, Investment, Fair Value $ 498,609,642
Investment, Identifier [Axis]: American EuroPacific Growth Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American [Member]
EBP, Investment, Number of Shares | shares 94,352
EBP, Investment, Fair Value $ 5,715,852
Investment, Identifier [Axis]: American New Perspective Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] American [Member]
EBP, Investment, Fair Value $ 18,735,986
Investment, Identifier [Axis]: American New Perspective Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Number of Shares | shares 265,119
Investment, Identifier [Axis]: Davey Tree Expert Company Common Stock  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Excluding Plan Interest in Master Trust, Cost $ 34,041,390
EBP, Investment, Fair Value $ 203,717,312
Investment, Identifier [Axis]: JPMorgan Large Cap Growth Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] JPMorgan [Member]
EBP, Investment, Number of Shares | shares 271,945
EBP, Investment, Fair Value $ 23,506,901
Investment, Identifier [Axis]: Metropolitan West Total Return Bond Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Metropolitan West [Member]
EBP, Investment, Number of Shares | shares 585,955
EBP, Investment, Fair Value $ 7,535,382
Investment, Identifier [Axis]: Morley Financial Services, Inc - Principal Stable Value Z Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Principal Global Investors [Member]
EBP, Investment, Number of Shares | shares 310,948
EBP, Investment, Fair Value $ 8,135,792
Investment, Identifier [Axis]: Principal LargeCap S&P 500 Index Account-Z Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Principal Global Investors [Member]
EBP, Investment, Number of Shares | shares 50,151
EBP, Investment, Fair Value $ 19,579,004
Investment, Identifier [Axis]: Principal MFS Value CIT N Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] SEI Trust Company [Member]
EBP, Investment, Number of Shares | shares 124,542
EBP, Investment, Fair Value $ 4,470,778
Investment, Identifier [Axis]: Principal Midcap S&P 400 Index Account-Z Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Principal Global Investors [Member]
EBP, Investment, Number of Shares | shares 62,294
EBP, Investment, Fair Value $ 7,323,879
Investment, Identifier [Axis]: T. Rowe Price Small Cap Stock Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] T. Rowe Price [Member]
EBP, Investment, Fair Value $ 16,011,137
Investment, Identifier [Axis]: T. Rowe Price Small Cap Stock Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Number of Shares | shares 280,700
Investment, Identifier [Axis]: The Davey Tree Expert Company Common Stock  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] The Davey Tree Expert Company [Member]
EBP, Investment, Number of Shares | shares 7,381,062
Investment, Identifier [Axis]: Vanguard Target Retirement 2020 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 93,498
EBP, Investment, Fair Value $ 2,566,526
Investment, Identifier [Axis]: Vanguard Target Retirement 2025 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 615,504
EBP, Investment, Fair Value $ 12,279,299
Investment, Identifier [Axis]: Vanguard Target Retirement 2030 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 443,941
EBP, Investment, Fair Value $ 18,792,015
Investment, Identifier [Axis]: Vanguard Target Retirement 2035 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 696,270
EBP, Investment, Fair Value $ 19,063,868
Investment, Identifier [Axis]: Vanguard Target Retirement 2040 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 595,482
EBP, Investment, Fair Value $ 29,744,318
Investment, Identifier [Axis]: Vanguard Target Retirement 2045 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 806,993
EBP, Investment, Fair Value $ 28,034,943
Investment, Identifier [Axis]: Vanguard Target Retirement 2050 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 387,897
EBP, Investment, Fair Value $ 22,994,535
Investment, Identifier [Axis]: Vanguard Target Retirement 2055 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 266,983
EBP, Investment, Fair Value $ 17,663,567
Investment, Identifier [Axis]: Vanguard Target Retirement 2060 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 179,847
EBP, Investment, Fair Value $ 10,967,054
Investment, Identifier [Axis]: Vanguard Target Retirement 2065 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 62,136
EBP, Investment, Fair Value $ 2,487,303
Investment, Identifier [Axis]: Vanguard Target Retirement 2070 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 7,437
EBP, Investment, Fair Value $ 236,637
Investment, Identifier [Axis]: Vanguard Target Retirement Income Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 203,485
EBP, Investment, Fair Value $ 2,822,336
Investment, Identifier [Axis]: Vanguard Total Stock Market Index Adm Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Investment, Issuer Name [Extensible Enumeration] Vanguard [Member]
EBP, Investment, Number of Shares | shares 99,419
EBP, Investment, Fair Value $ 16,225,218