Nature of Business Operations (Narrative) (Details)	0 Months Ended	12 Months Ended
Dec. 31, 2012 segment	Dec. 31, 2014 segment acre
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Acres of timberland owned leased		2,700,000
Acres of high value real estate owned		200,000ryn_AcresOfHighValueRealEstateOwned
Number of reportable segments	4us-gaap_NumberOfReportableSegments	5us-gaap_NumberOfReportableSegments

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration