XML 117 R102.htm IDEA: XBRL DOCUMENT
v3.22.2

Acquisition - Summary of Net Assets Acquired (Parenthetical) (Detail) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 01, 2022 | Nov. 01, 2021 | Nov. 01, 2019 | Apr. 30, 2022 | Apr. 30, 2021 | Apr. 30, 2020
Business Acquisition [Line Items] |  |  |  |  |  |
Cash paid for acquisitions, net of cash acquired |  |  |  | $ 133,802 |  | $ 108,602
Acquired Companies, Patina Solutions Group and Lucas Group |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired receivables |  |  |  | $ 24,500 |  | $ 41,100
Acquired Companies |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash paid for acquisitions, net of cash acquired |  |  | $ 108,600 |  |  |
Increase in goodwill result of additional tax liabilities |  |  |  |  | $ 2,600 |
Patina Solutions Group |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash paid for acquisitions, net of cash acquired | $ 42,900 |  |  |  |  |
Lucas Group |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Cash paid for acquisitions, net of cash acquired |  | $ 90,900 |  |  |  |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=kfy_MillerHeimanGroupAchieveForumAndStrategyExecutionPatinaSolutionsGroupAndLucasGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=kfy_MillerHeimanGroupAchieveForumAndStrategyExecutionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=kfy_PatinaSolutionsGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=kfy_LucasGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |