XML 61 R42.htm IDEA: XBRL DOCUMENT v3.21.1

BUSINESS COMBINATIONS - Definite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Aug. 06, 2020	Jan. 03, 2020
Distributed Bio, Inc.
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 24,540
Weighted-average amortization life	7 years
Cellero, LLC
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 16,230
Weighted-average amortization life		12 years
HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired			$ 183,540
Weighted-average amortization life			18 years
Customer and client relationships | Distributed Bio, Inc.
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 16,080
Weighted-average amortization life	9 years
Customer and client relationships | Cellero, LLC
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 14,740
Weighted-average amortization life		13 years
Customer and client relationships | HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired			$ 170,390
Weighted-average amortization life			19 years
Developed technology | Distributed Bio, Inc.
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 3,940
Weighted-average amortization life	5 years
Trade name | HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired			$ 7,330
Weighted-average amortization life			10 years
Other intangible assets | Distributed Bio, Inc.
Business Acquisition [Line Items]
Definite-lived intangible assets acquired	$ 4,520
Weighted-average amortization life	4 years
Other intangible assets | Cellero, LLC
Business Acquisition [Line Items]
Definite-lived intangible assets acquired		$ 1,490
Weighted-average amortization life		3 years
Other intangible assets | HemaCare Corporation
Business Acquisition [Line Items]
Definite-lived intangible assets acquired			$ 5,820
Weighted-average amortization life			3 years

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
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_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

+ Details

Name:	us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=crl_DistributedBioIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=crl_CelleroLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=crl_HemaCareCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DevelopedTechnologyRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TradeNamesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: