XML 78 R57.htm IDEA: XBRL DOCUMENT
v3.25.2

Organization and Summary of Significant Accounting Policies - Translation of Foreign Currencies (Details) $ in Millions | 12 Months Ended
--- | ---
Apr. 30, 2025 USD ($) | Apr. 30, 2024 USD ($) | Apr. 30, 2023 USD ($)
Executive And Professional Search |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Cash compensation, percentage | 0.33 |  |
General and Administrative Expenses |  |  |
Organization And Summary Of Significant Accounting Policies [Line Items] |  |  |
Foreign currency losses | $ (2.8) | $ (4.5) | $ (2.0)

X
- Definition Cash Compensation, Percentage + References No definition available. + Details
Name: | kfy_CashCompensationPercentage
Namespace Prefix: | kfy_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Organization And Summary Of Significant Accounting Policies [Line Items] + References No definition available. + Details
Name: | kfy_OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | kfy_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 20 -Name Accounting Standards Codification -Section 35 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482014/830-20-35-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481956/830-20-45-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481926/830-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481839/830-10-45-17 + Details
Name: | us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=kfy_ExecutiveAndProfessionalSearchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |