XML 54 R44.htm IDEA: XBRL DOCUMENT v3.7.0.1

Revenue Recognition - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2017 USD ($)
Clinical Development
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Potential milestone payments to be received	$ 60
Milestone payment substantive	60
Initial Commercial Sales
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Potential milestone payments to be received	100
BioMarin Pharmaceutical, Inc. | Asset Purchase Agreement
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Potential milestone payments to be received	$ 160

X

- Definition

Potential additional milestone payments associated with potential regulatory approvals.

+ References

No definition available.

+ Details

Name:	rgen_PotentialAdditionalMilestonePaymentsAssociatedWithPotentialRegulatoryApprovals
Namespace Prefix:	rgen_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of consideration recognized during the period for the milestone or milestones.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 28
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=68058744&loc=SL6892177-166501

+ Details

Name:	us-gaap_RevenueRecognitionMilestoneMethodRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_RevenueRecognitionMultipleDeliverableArrangementsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=rgen_ClinicalResearchMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=rgen_FirstCommercialSaleMilestoneEventsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_MajorCustomersAxis=rgen_BiomarinPharmaceuticalIncorporatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DeferredRevenueArrangementTypeAxis=rgen_AssetPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: