Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Related Party and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Document Information [Line Items] Document Information [Line Items] EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] EBP, Participant Contribution, Receivable EBP, Participant Contribution, Receivable EBP, Description of Plan and Accounting Change [Abstract] EBP, Allocation Status [Domain] EBP, Allocation Status [Domain] EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Investment Type [Axis] Investment Type [Axis] EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] EBP, Investment, Number of Shares EBP, Investment, Number of Shares EBP, Tax Status EBP, Tax Status [Text Block] EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment [Abstract] EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment AnnualCompanyDiscretionaryContribution AnnualCompanyDiscretionaryContribution AnnualCompanyDiscretionaryContribution EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Text Block] Document Information, Document [Axis] Document Information, Document [Axis] EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Expense EBP, Expense [Policy Text Block] EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Change in Net Asset Available for Benefit, Increase from Contribution EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Measurement Input Type [Domain] Measurement Input Type [Domain] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant EBP, Employer Contribution, Receivable EBP, Employer Contribution, Receivable EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Payment to Participant EBP, Payment to Participant [Policy Text Block] EBP, Participant-Directed and Nonparticipant-Directed Status [Domain] EBP, Participant-Directed and Nonparticipant-Directed Status [Domain] EBP, Net Asset Available for Benefit EBP, Net Asset Available for Benefit Cash and Cash Equivalents Cash and Cash Equivalents [Member] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] VestingPercentageofContributions VestingPercentageofContributions VestingPercentageofContributions EBP, Employer, Common Stock EBP, Employer, Common Stock [Member] EBP, Participant Contribution, Automatic, Deferral Rate EBP, Participant Contribution, Automatic, Deferral Rate EBP, Tax Status [Abstract] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Cover [Abstract] Maximum Maximum [Member] EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Minimum Minimum [Member] EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Schedule of Asset Held for Investment [Abstract] EBP, Net Asset Value per Share or Unit EBP, Net Asset Value per Share or Unit Entity [Domain] Entity [Domain] EBP, Asset Held for Investment EBP, Asset Held for Investment Investment, Identifier [Axis] Investment, Identifier [Axis] EBP, Allocation Status [Axis] EBP, Allocation Status [Axis] EBP, Investment, Fair Value and NAV [Abstract] EBP, Employer Contribution, Matching Percentage EBP, Employer Contribution, Matching Percentage EBP, Basis of Accounting EBP, Basis of Accounting [Policy Text Block] Document [Domain] Document [Domain] EBP, Risk and Uncertainty EBP, Risk and Uncertainty [Policy Text Block] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Automatic Annual Participant Contribution Percentage Increase AutomaticAnnualParticipantContributionPercentageIncrease AutomaticAnnualParticipantContributionPercentageIncrease Mutual Fund Mutual Fund [Member] EBP, Description of Plan [Table] EBP, Description of Plan [Table] EBP, Investment EBP, Investment [Policy Text Block] EBPChangeInNetAssetAvailableForBenefitIncreaseDecreaseFromOtherReceiptsDisbursementsNet EBPChangeInNetAssetAvailableForBenefitIncreaseDecreaseFromOtherReceiptsDisbursementsNet EBPChangeInNetAssetAvailableForBenefitIncreaseDecreaseFromOtherReceiptsDisbursementsNet Amendment Flag Amendment Flag EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Common Collective Trust Common Collective Trust [Member] Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] EBP, Change in Net Asset Available for Benefit, Decrease EBP, Change in Net Asset Available for Benefit, Decrease EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Measurement Input Type [Axis] Measurement Input Type [Axis] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Forfeited Nonvested Account EBP, Forfeited Nonvested Account EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Description of Plan EBP, Description of Plan [Text Block] EBP, Summary of Accounting Policy EBP, Summary of Accounting Policy [Text Block] EBP, Note Receivable from Participant EBP, Note Receivable from Participant [Policy Text Block] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) EBP, Change in Net Asset Available for Benefit, Increase EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Participant-Directed and Nonparticipant-Directed Status [Axis] EBP, Participant-Directed and Nonparticipant-Directed Status [Axis] Entity Central Index Key Entity Central Index Key EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Legal Entity [Axis] Legal Entity [Axis] Entity Tax Identification Number Entity Tax Identification Number EBPChangeInNetAssetAvailableForBenefitIncreaseDecreaseFromInterestAndDividendIncomeAndGainLossOnInvestment EBPChangeInNetAssetAvailableForBenefitIncreaseDecreaseFromInterestAndDividendIncomeAndGainLossOnInvestment EBPChangeInNetAssetAvailableForBenefitIncreaseDecreaseFromInterestAndDividendIncomeAndGainLossOnInvestment Maximum Participant % for Annual Increase MaximumParticipant%forAnnualIncrease MaximumParticipant%forAnnualIncrease EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] EBP, Plan Number EBP, Plan Number Document Type Document Type EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Use of Estimate EBP, Use of Estimate [Policy Text Block] NoteReceivableFromParticipantMaximumBorrowingTermPrimaryResidence NoteReceivableFromParticipantMaximumBorrowingTermPrimaryResidence NoteReceivableFromParticipantMaximumBorrowingTermPrimaryResidence ke:EBP001 EBP001 [Member] EBP001 Statistical Measurement [Axis] Statistical Measurement [Axis] EBP, Note Receivable from Participant EBP, Note Receivable from Participant NoteReceivableFromParticipantMaximumBorrowingTermOnGeneralLoan NoteReceivableFromParticipantMaximumBorrowingTermOnGeneralLoan NoteReceivableFromParticipantMaximumBorrowingTermOnGeneralLoan EBP, Schedule of Asset Held for Investment EBP, Schedule of Asset Held for Investment [Table Text Block] EBP, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Domain] EBP, Related Party and Party-in-Interest [Domain] EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Investments [Domain] Investments [Domain] Document Information [Table] Document Information [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Entity Registrant Name Entity Registrant Name ParticipantLoanBasisSpreadOnVariableRate ParticipantLoanBasisSpreadOnVariableRate ParticipantLoanBasisSpreadOnVariableRate EBP, Tax Status [Table] EBP, Tax Status [Table] EBP, Investment, Excluding Plan Interest in Master Trust, Cost EBP, Investment, Excluding Plan Interest in Master Trust, Cost EBP, Receivable EBP, Receivable EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage