Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Length of Time, Foreign Currency Cash Flow Hedge

+ References

No definition available.

+ Details

Name:	ryn_LengthofTimeForeignCurrencyCashFlowHedge
Namespace Prefix:	ryn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of Foreign Currency Exposure Hedged For Forecasted Distributions In Next Six to Twelve Months

+ References

No definition available.

+ Details

Name:	ryn_PercentageofForeignCurrencyExposureHedgedForForecastedDistributionsInNextSixtoTwelveMonths
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Foreign Currency Exposure Hedged For Forecasted Distributions In Next Three to Six Months

+ References

No definition available.

+ Details

Name:	ryn_PercentageofForeignCurrencyExposureHedgedForForecastedDistributionsInNextThreetoSixMonths
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Foreign Currency Exposure Hedged For Forecasted Sales In Next Three Months

+ References

No definition available.

+ Details

Name:	ryn_PercentageofForeignCurrencyExposureHedgedForForecastedSalesInNextThreeMonths
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Foreign Currency Exposure Hedged For Forecasted Sales In Next Three to Twelve Months

+ References

No definition available.

+ Details

Name:	ryn_PercentageofForeignCurrencyExposureHedgedForForecastedSalesInNextThreetoTwelveMonths
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Foreign Currency Exposure Hedged For Forecasted Sales In Next Twelve to Eighteen Months

+ References

No definition available.

+ Details

Name:	ryn_PercentageofForeignCurrencyExposureHedgedForForecastedSalesInNextTwelvetoEighteenMonths
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of Foreign Currency Exposure Hedged For Forecasted distributions In Next Three Months

+ References

No definition available.

+ Details

Name:	ryn_PercentageofForeignCurrencyExposureHedgedForForecasteddistributionsInNextThreeMonths
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeAverageFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Average variable interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeAverageVariableInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

+ Details

Name:	us-gaap_DerivativeGainLossOnDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

+ Details

Name:	us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

+ Details

Name:	us-gaap_NumberOfInterestRateDerivativesHeld
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ryn_ForwardInterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=ryn_NewZealandJVMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ryn_ForeignCurrencyExchangeandOptionContractsScale2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ryn_ForeignCurrencyExchangeandOptionContractsScale3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeForwardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ryn_ForeignCurrencyExchangeandOptionContractsScale4Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ryn_ForeignCurrencyExchangeandOptionContractsScale5Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherNonoperatingIncomeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Narrative) (Details) $ in Thousands	1 Months Ended		3 Months Ended
	Apr. 30, 2016 USD ($) derivative_agreement	Aug. 31, 2015 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Jul. 07, 2016 USD ($)
Derivative [Line Items]
Gain (loss) on foreign currency exchange and option contracts			$ 652	$ (522)
Not Designated as Hedging Instrument \| Foreign currency exchange contracts
Derivative [Line Items]
Notional amount			11,250		$ 0
Cash Flow Hedging \| Designated as Hedging Instrument
Derivative [Line Items]
AOCI gain (loss) balance expected to be reclassified in next twelve months, net of tax			600
Cash Flow Hedging \| Designated as Hedging Instrument \| Foreign currency exchange contracts
Derivative [Line Items]
Notional amount			61,200		44,800
Cash Flow Hedging \| Designated as Hedging Instrument \| Interest rate swaps
Derivative [Line Items]
Notional amount	$ 100,000	$ 170,000	$ 650,000		$ 650,000
Derivative, term of contract	10 years	9 years
Derivative, average rate	1.60%	2.20%
Derivative, basis spread on variable rate	1.90%
Derivative, fixed interest rate	3.50%	3.83%
Number of interest rate derivatives held \| derivative_agreement	2
Cash Flow Hedging \| Designated as Hedging Instrument \| Forward Interest Rate Swap
Derivative [Line Items]
Notional amount		$ 180,000
Derivative, term of contract		9 years
Derivative, average rate		2.35%
Derivative, basis spread on variable rate		1.625%
Derivative, fixed interest rate		3.97%
Cash Flow Hedging \| Designated as Hedging Instrument \| Interest Rate Contract
Derivative [Line Items]
Notional amount						$ 100,000
Derivative, average rate						1.26%
Derivative, basis spread on variable rate						1.90%
Derivative, average variable interest rate						3.16%
New Zealand JV \| Minimum
Derivative [Line Items]
Percent of forecast sales and purchases hedged for 3 months			35.00%
Percent of forecast sales and purchases hedged for three to 12 months			25.00%
New Zealand JV \| Minimum \| Forecasted Sales and Purchases, term 1
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			3 months
New Zealand JV \| Minimum \| Forecasted Sales and Purchases, term 2
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			12 months
New Zealand JV \| Minimum \| Foreign Exchange Forward
Derivative [Line Items]
Percent of forecast distributions hedged for the next 3 months			75.00%
New Zealand JV \| Minimum \| Forecasted Distributions, term 2
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			3 months
New Zealand JV \| Minimum \| Forecasted Distributions, term 1
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			6 months
New Zealand JV \| Maximum
Derivative [Line Items]
Percent of forecast sales and purchases hedged for 3 months			90.00%
Percent of forecast sales and purchases hedged for three to 12 months			75.00%
Percent of forecast sales and purchases hedged for 12 to 18 months			50.00%
New Zealand JV \| Maximum \| Forecasted Sales and Purchases, term 1
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			12 months
New Zealand JV \| Maximum \| Forecasted Sales and Purchases, term 2
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			18 months
New Zealand JV \| Maximum \| Foreign Exchange Forward
Derivative [Line Items]
Percent of forecast distributions hedged for the next 3 months			100.00%
Percent of forecast distributions hedged for 6 months			75.00%
Percent of forecast distributions hedged for 6 to 12 months			50.00%
New Zealand JV \| Maximum \| Forecasted Distributions, term 2
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			6 months
New Zealand JV \| Maximum \| Forecasted Distributions, term 1
Derivative [Line Items]
Length of time, foreign currency cash flow hedge			12 months
Interest income and miscellaneous income (expense), net \| Not Designated as Hedging Instrument \| Foreign currency exchange contracts
Derivative [Line Items]
Non-designated hedged item, gain (loss) recognized in income			$ 100	0
Interest income and miscellaneous income (expense), net \| Not Designated as Hedging Instrument \| Interest rate swaps
Derivative [Line Items]
Non-designated hedged item, gain (loss) recognized in income			$ 0	$ (1,219)