XML 59 R45.htm IDEA: XBRL DOCUMENT
v3.10.0.1

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Newly Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 29, 2018 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 30, 2017 | Sep. 30, 2017 | Jul. 01, 2017 | Apr. 01, 2017 | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016 | Jan. 01, 2019
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount reclassified from accumulated other comprehensive loss due to the adoption of ASU 2018-02 (See Note 1) |  |  |  |  |  |  |  |  | $ 3,330 |  |  |
Adjustments to operating income related to adoption of new accounting guidance | $ 102,482 | $ 84,362 | $ 76,710 | $ 67,829 | $ 62,827 | $ 74,062 | $ 81,686 | $ 69,706 | 331,383 | $ 288,282 | $ 237,552 |
Adjustments to other assets as a result of adoption of new accounting guidance | 143,759 |  |  |  | 124,002 |  |  |  | 143,759 | 124,002 |  |
Adjustment to retained earnings as a result of newly adopted accounting guidance | 42,096 |  |  |  | 288,658 |  |  |  | 42,096 | 288,658 |  |
Adjustment to deferred tax assets as a result of newly adopted accounting guidance | 23,386 |  |  |  | 22,654 |  |  |  | 23,386 | 22,654 |  |
Reduction in property, plant and equipment, net | (932,877) |  |  |  | (781,973) |  |  |  | (932,877) | (781,973) |  |
Reduction in capital lease obligations | (1,636,598) |  |  |  | $ (1,114,105) |  |  |  | (1,636,598) | (1,114,105) |  |
Unallocated corporate |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  | (168,874) | (133,000) | (138,806) |
RMS |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  | 136,468 | 114,588 | 136,418 |
DSA |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  | 227,577 | 182,796 | 135,379 |
Manufacturing |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  | 136,212 | 123,898 | 104,561 |
Accounting Standards Update 2018-02 |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount reclassified from accumulated other comprehensive loss due to the adoption of ASU 2018-02 (See Note 1) |  |  |  |  |  |  |  |  | 3,300 |  |  |
Accounting Standards Update 2017-07 |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  |  | 800 | 100 |
Accounting Standards Update 2017-07 | Unallocated corporate |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  |  | 2,200 | 2,800 |
Accounting Standards Update 2017-07 | RMS |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  |  | (100) | 100 |
Accounting Standards Update 2017-07 | DSA |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  |  | (1,300) | (2,800) |
Accounting Standards Update 2017-07 | Manufacturing |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to operating income related to adoption of new accounting guidance |  |  |  |  |  |  |  |  |  | $ (100) | $ (100) |
Accounting Standards Update 2016-01 |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Adjustments to other assets as a result of adoption of new accounting guidance | 1,900 |  |  |  |  |  |  |  | 1,900 |  |  |
Adjustment to retained earnings as a result of newly adopted accounting guidance | 1,400 |  |  |  |  |  |  |  | 1,400 |  |  |
Adjustment to deferred tax assets as a result of newly adopted accounting guidance | $ 500 |  |  |  |  |  |  |  | $ 500 |  |  |
Accounting Standards Update 2016-02 | Scenario, Forecast |  |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Reduction in property, plant and equipment, net |  |  |  |  |  |  |  |  |  |  |  | $ 26,000
Reduction in capital lease obligations |  |  |  |  |  |  |  |  |  |  |  | 26,000
Right-of-use asset, operating leases |  |  |  |  |  |  |  |  |  |  |  | 130,000
Operating lease liability |  |  |  |  |  |  |  |  |  |  |  | $ 130,000

X
- Definition Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings, Tax Effect + References No definition available. + Details
Name: | crl_TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsTaxEffect
Namespace Prefix: | crl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredIncomeTaxAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of noncurrent assets classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_OtherAssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(a)(4)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_RetainedEarningsAccumulatedDeficit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=crl_AccountingStandardsUpdate201802Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201707Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201601Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |