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 number of timberland acres acquired during the reporting period.

+ References

No definition available.

+ Details

Name:	ryn_AcresOfTimberlandsAcquired
Namespace Prefix:	ryn_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Productive acres of timberland owned, leased or managed

+ References

No definition available.

+ Details

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

- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e845-128460

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Acquisition Date

-URI http://asc.fasb.org/extlink&oid=6919109

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e848-128460

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

Name:	us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

+ Details

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

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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

- Details

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

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ryn_NewZealandTimberSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_TimberPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Nature of Business Operations - Southern, Pacific Northwest and New Zealand Timber (Narrative) (Details)	0 Months Ended	12 Months Ended
	Apr. 04, 2013	Dec. 31, 2014 acre	Dec. 31, 2013 acre	Apr. 30, 2013	Apr. 04, 2013
Segment Reporting Information [Line Items]
Effective date of acquisition	Apr. 04, 2013
Percentage of voting interests acquired	39.00%				39.00%
Ownership percentage by parent	65.00%			65.00%	65.00%
Acres		62,344ryn_AcresOfTimberlandsAcquired	17,094,000ryn_AcresOfTimberlandsAcquired
Timber Segments [Member]
Segment Reporting Information [Line Items]
Acres of timberland owned or leased		2,700,000
New Zealand Timber [Member]
Segment Reporting Information [Line Items]
Acres of timberland owned or leased	451,000				451,000
Productive Acres of Timberland	309,000				309,000