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REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Client Receivables, Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands | Mar. 30, 2019 | Dec. 29, 2018
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Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |
Client receivables | $ 377,188 | $ 370,131
Contract assets (unbilled revenue) | 120,607 | 105,216
Contract liabilities (current and long-term deferred revenue) | 166,705 |
Contract liabilities (customer contract deposits) | $ 32,380 | 38,245
Calculated under Revenue Guidance in Effect before Topic 606 |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |
Client receivables |  | 370,131
Contract assets (unbilled revenue) |  | 105,216
Contract liabilities (current and long-term deferred revenue) |  | $ 179,559

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- Definition Contract With Customer Liability, Customer Deposits + References No definition available. + Details
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Balance Type: | credit
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- Definition Contract With Customer Liability, Deferred Revenue + References No definition available. + Details
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Namespace Prefix: | crl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for billed goods or services. + References No definition available. + Details
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- Definition Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130533-203044 + Details
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- 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
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- Details
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