v3.26.1
Employee Benefit Plan, Schedule, Asset Held for Investment (Details) - ke:EBP001
12 Months Ended
Dec. 31, 2025
USD ($)
EBP, Schedule of Asset Held for Investment [Line Items]  
Entity Tax Identification Number 35-2047713
EBP, Plan Number 001
EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution $ 1,138,965
EBP, Asset Held for Investment 159,938,969
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 147,134,315
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2035 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 13,424,789
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Dodge & Cox, Income Fund Class I</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 637,564
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, JP Morgan, Large Cap Growth Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 8,584,670
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Macquarie, Small Cap Core Fund; Institutional Class</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 2,651,337
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Inflation-Protected Securities Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 693,246
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Institutional Index Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 21,160,623
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, International Growth Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 3,883,655
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Small-Cap Index Fund Institutional Shares</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 6,172,706
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2040 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 10,597,846
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2050 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 6,973,675
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2060 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 4,830,212
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2065 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 2,269,112
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2070 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 100,054
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Real Estate Index Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 718,634
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Total Bond Market Index Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 10,260,050
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Total International Stock Index Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 6,676,829
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement Income</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 1,979,884
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Windsor II Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 6,015,974
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2020 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 3,806,641
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2025 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 7,284,733
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2030 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 14,176,975
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2045 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value 9,314,652
Investment, Identifier [Axis]: <us-gaap:investmentidentifieraxis.domain>Mutual Funds, Vanguard, Vanguard Target Retirement 2055 Fund</us-gaap:investmentidentifieraxis.domain>  
EBP, Schedule of Asset Held for Investment [Line Items]  
EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value $ 4,920,454