XML 47 R37.htm IDEA: XBRL DOCUMENT v3.25.4

Organization and Nature of Business - Additional Information (Detail)	Dec. 31, 2025 Sites
Accounting Policies [Abstract]
Number of manufacturing sites	19

X

- Definition

Number of manufacturing sites.

+ References

No definition available.

+ Details

Name:	rgen_NumberOfManufacturingSites
Namespace Prefix:	rgen_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration