XML 93 R79.htm IDEA: XBRL DOCUMENT
v3.20.4

Contingent Liabilities (Reconciliation of Product Liability Reserve) (Details) - Product Liability Reserve [Member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Balance at Beginning of Period | [1] | $ 818 | $ 1,172 | $ 819
Accrued Legal Expense (Income) | [2] | 300 | (37) | 731
Legal Fees | [3] | 8 | (240) | (183)
Settlements | [4] |  | (77) | (195)
Balance at End of Period | [1] | $ 1,126 | $ 818 | $ 1,172
[1] | The beginning and ending liability balances represent accrued legal fees only. Settlements and administrative costs are expensed as incurred. Only in rare instances is an accrual established for settlements.
[2] | The expense accrued in the liability is for legal fees only. In 2019, the costs incurred related to cases that were settled or dismissed were less than the amounts accrued for these cases in prior years.
[3] | Legal fees represent payments to outside counsel related to product liability matters.
[4] | Settlements represent payments made to plaintiffs or allegedly injured parties in exchange for a full and complete release of liability.

X
- Definition Valuation Allowances And Reserves Legal Fees + References No definition available. + Details
Name: | rgr_ValuationAllowancesAndReservesLegalFees
Namespace Prefix: | rgr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Valuation Allowances And Reserves Settlements + References No definition available. + Details
Name: | rgr_ValuationAllowancesAndReservesSettlements
Namespace Prefix: | rgr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ValuationAndQualifyingAccountsDisclosureLineItems
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
Name: | us-gaap_ValuationAllowancesAndReservesBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column C)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
Name: | us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ValuationAllowancesAndReservesTypeAxis=rgr_ProductLiabilityReserveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |