The number of timberland acres owned and managed.

No definition available.

Name:	ryn_AcresOfTimberlandOwnedManaged
Namespace Prefix:	ryn_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of outstanding debt of the joint venture.

+ References

No definition available.

+ Details

Name:	ryn_EquityMethodInvestmentJointVentureOutstandingDebt
Namespace Prefix:	ryn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Decrease (increase) in ownership (equity) percentage of the joint venture in a given period.

+ References

No definition available.

+ Details

Name:	ryn_EquityMethodInvestmentPercentageOfOwnershipIncreaseDecrease
Namespace Prefix:	ryn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents the per diluted share amount of gain (loss) arising from the decrease (increase) in ownership of an equity method investment.

+ References

No definition available.

+ Details

Name:	ryn_EquityMethodInvestmentPerShareGainLossOnChangeInOwnership
Namespace Prefix:	ryn_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents the tax expense (benefit) related to the amount of (gain) loss arising from the decrease (increase) in ownership of an equity method investment.

+ References

No definition available.

+ Details

Name:	ryn_EquityMethodInvestmentRealizedGainLossOnIncreaseDecreaseInOwenrshipTax
Namespace Prefix:	ryn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Net of tax, the profit or loss on sales of previously unissued stock by equity investees made to investors outside the consolidated group that is not reported as operating income.

+ References

No definition available.

+ Details

Name:	ryn_GainLossOnSaleOfPreviouslyUnissuedStockByEquityInvesteeNetOfTax
Namespace Prefix:	ryn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow to the equity method investee from the sale of additional stock.

+ References

No definition available.

+ Details

Name:	ryn_ProceedsFromIssuanceOfCommonStockByEquityMethodInvestee
Namespace Prefix:	ryn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

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

- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

+ Details

Name:	us-gaap_SaleOfStockPercentageOfOwnershipAfterTransaction
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company before stock transaction.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

+ Details

Name:	us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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

Joint Venture Investment (Details) In Millions, except Per Share data, unless otherwise specified	12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2010 USD ($)	Dec. 31, 2011 Acres	Feb. 28, 2010 Matariki [Member] NZD	Dec. 31, 2010 Matariki [Member]	Dec. 31, 2011 Matariki [Member] Acres
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage					26.00%
Acres Of Timberland Owned Managed		2,700,000			300,000
Equity Method Investment Percentage of Ownership Decrease			35.00%
Proceeds From Issuance Of Common Stock By Equity Method Investee			167
Equity Method Investment Joint Venture Outstanding Debt			367
Sale of Stock, Percentage of Ownership before Transaction				40.00%
Sale of Stock, Percentage of Ownership after Transaction				26.00%
Gain (Loss) on Sale of Previously Unissued Stock by Equity Investee, Net of Tax	11.5
Equity Method Investment, Realized Gain (Loss) on Disposal, Tax	$ 0.9
Equity Method Investment, Realized Gain (Loss) on Disposal, Per Share Amount	$ 0.09