XML 29 R43.htm IDEA: XBRL DOCUMENT v3.19.3

CONTINGENT LIABILITIES (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 28, 2019	Dec. 31, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Minimum limit of per claim for providing insurance coverage on annual basis	$ 0.5
Maximum limit of aggregate loss incurred annually for providing insurance coverage on annual basis	$ 1.0
Total amount of damages claimed		$ 0.1	$ 0.1

X

- Definition

Represents maximum limit of aggregate loss incurred annually for providing insurance coverage on annual basis excluding for certain new claims from governments or municipalities.

+ References

No definition available.

+ Details

Name:	rgr_ThresholdLimitOfAggregateLossForInsuranceCoverageOnAnnualBasisExcludingNewClaimsFromGovernmentsOrMunicipalities
Namespace Prefix:	rgr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents minimum limit of per claim for providing insurance coverage on annual basis.

+ References

No definition available.

+ Details

Name:	rgr_ThresholdLimitOfLossesPerTransactionForTakingInsuranceCoverageOnAnnualBasis
Namespace Prefix:	rgr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349

+ Details

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