Schedule of Assets (Held at End of Year) - Schedule of Assets (Details) - EBP 003
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12 Months Ended |
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Dec. 31, 2025
USD ($)
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Entity Tax Identification Number |
34-0367600
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| EBP, Plan Number |
003
|
| Notes receivable from participants |
$ 20,426,375
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| Total assets held for investment purposes |
1,589,325,674
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| Investment, Identifier [Axis]: Artisan International Small-Mid Artisan International Small-Mid |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 11,079,054
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Artisan International Small-Mid [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Artisan International Small-Mid [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Baird Aggregate Bond Fund Baird Aggregate Bond Inst. |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 90,648,128
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Baird Aggregate Bond Fund [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Baird Aggregate Bond Fund Class Institutional [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Berkshire Hathaway Class B Stock Fund Berkshire Hathaway Class B Stock Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 100,972,202
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Berkshire Hathaway Class B Stock Fund [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Berkshire Hathaway Class B Common Stock Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| EBP, Asset Held for Investment, Party-in-Interest [true false] |
true
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| Investment, Identifier [Axis]: DFA Emerging Markets Core Equity 2 DFA Emerging Markets Core Equity 2 |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 7,154,491
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
DFA Emerging Markets Core Equity 2 [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
DFA Emerging Markets Core Equity 2 [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Federated Hermes MDT Mid Cap Growth Federated Hermes MDT Mid Cap Growth CL P |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 30,566,769
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Federated Hermes MDT Mid Cap Growth [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Federated Hermes MDT Mid Cap Growth CL P [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Fidelity Advisor® Diversified Intl Fidelity Advisor® Diversified Intl |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 33,692,883
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Fidelity Advisor Diversified Intl [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Fidelity Advisor Diversified Intl [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Goldman Sachs Asset Management Interest-bearing cash |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 3,099,392
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Goldman Sachs Asset Management [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Stable Value Fund Interest-bearing Cash [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Goldman Sachs Asset Management Stable Value Fund: Synthetic GICs |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 121,066,889
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Goldman Sachs Asset Management [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Synthetic GICs [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Hartford Small Cap Growth Hartford Small Cap Growth |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 17,406,900
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Hartford Small Cap Growth [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Hartford Small Cap Growth [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Nomura Small Cap Value Fund Nomura Small Cap Value Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 13,386,901
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
Nomura Small Cap Value Fund [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Nomura Small Cap Value Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: Self-Directed |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 5,788,987
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanSelfDirectedBrokerageAccountMember
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanSelfDirectedBrokerageAccountMember
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Global All Cap Equity State Street Global All Cap Equity |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 69,859,501
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Global All Cap Equity [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
State Street Global All Cap Equity [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Russell Large Cap Growth Index Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 108,117,051
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Russell Large Cap Growth Index Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Russell Large Cap Value Index Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 67,873,013
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Russell Large Cap Value Index Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Russell Small Mid Cap Index Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 24,729,848
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Russell Small Mid Cap Index Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company S&P 500 Index Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 320,013,858
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
S and P Five Hundred Index Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2025 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 13,695,462
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Twenty Five Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2030 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 119,799,457
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Thirty Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2035 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 18,485,805
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Thirty Five Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2040 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 133,205,907
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Forty Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2045 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 14,597,377
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Forty Five Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2050 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 128,357,935
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Fifty Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2055 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 11,418,043
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Fifty Five Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2060 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
|
| Current Value |
$ 32,252,028
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
|
| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Sixty Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2065 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
|
| Current Value |
$ 1,126,380
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
|
| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Sixty Five Fund [Member]
|
| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
|
| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement 2070 Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
|
| Current Value |
$ 468,796
|
| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
|
| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Two Thousand Seventy Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: State Street Investment Management Trust Company Target Retirement Income Fund |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
|
| Current Value |
$ 51,006,912
|
| EBP, Investment, Issuer Name [Extensible Enumeration] |
State Street Investment Management Trust Company [Member]
|
| EBP, Investment, Current Value, Type [Extensible Enumeration] |
Target Retirement Income Fund [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
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| Investment, Identifier [Axis]: T Rowe Price Mid Cap Val Equity T Rowe Price Mid-Cap Val Equity Trust D |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Current Value |
$ 19,029,331
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| EBP, Investment, Issuer Name [Extensible Enumeration] |
T Rowe Price Mid Cap Val Equity [Member]
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| EBP, Investment, Current Value, Type [Extensible Enumeration] |
T Rowe Price Mid Cap Val Equity Trust D [Member]
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| EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration] |
us-gaap-ebp:EmployeeBenefitPlanParticipantDirectedMember
|
| Minimum |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Employee benefit plan, asset held for investment, participant loan, interest rate |
4.25%
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| Maximum |
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| EBP, Schedule of Asset Held for Investment [Line Items] |
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| Employee benefit plan, asset held for investment, participant loan, interest rate |
9.50%
|