XML 77 R58.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Forgivable Loans - Narrative (Details) - loan loan in Millions | 12 Months Ended
--- | ---
Dec. 30, 2023 | Dec. 31, 2022 | Jan. 01, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of loan balances which full principal and interest were not forgiven | 0.0 | 0.0 | 0.0
Minimum |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Term of forgivable loans or advances (in years) | 2 years |  |
Maximum |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Term of forgivable loans or advances (in years) | 6 years |  |
Interest rates (as a percent) | 5.00% |  |

X
- Definition Represents the term of forgivable loans or advances issuable to employees and non-employee experts. + References No definition available. + Details
Name: | crai_ForgivableLoanAdvancesTermToEmployeesAndNonEmployeeExperts
Namespace Prefix: | crai_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents information pertaining to interest rates charged on outstanding forgivable loans. + References No definition available. + Details
Name: | crai_ForgivableLoansInterestRate
Namespace Prefix: | crai_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Forgivable Loans, Number of Loan Balances which Full Principal and Interest were not Forgiven + References No definition available. + Details
Name: | crai_ForgivableLoansNumberOfLoanBalancesWhichFullPrincipalAndInterestWereNotForgiven
Namespace Prefix: | crai_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |