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Trade Receivables, Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	51,138us-gaap_AccountsReceivableGrossCurrent	69,028us-gaap_AccountsReceivableGrossCurrent
Allowance for doubtful accounts	(400)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent	(300)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Allowance for discounts	(1,003)rgr_AllowanceForDiscountsAccountsReceivableCurrent	(1,344)rgr_AllowanceForDiscountsAccountsReceivableCurrent
Trade receivables, net	49,735us-gaap_AccountsReceivableNetCurrent	67,384us-gaap_AccountsReceivableNetCurrent
Trade receivables [Member] | Customer one [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of customers	28.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerOneMember	17.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerOneMember
Trade receivables [Member] | Customer two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of customers	15.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerTwoMember	17.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerTwoMember
Trade receivables [Member] | Customer three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of customers	11.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerThreeMember	15.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerThreeMember
Trade receivables [Member] | Customer four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of customers	10.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_AccountsReceivableMember / us-gaap_ConcentrationRiskByTypeAxis = rgr_CustomerFourMember

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- Definition

Allowance For Discounts Accounts Receivable Current

+ References

No definition available.

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- Definition

Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.3-4)

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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