DISCONTINUED OPERATIONS - Interest Expense Allocated to Discontinued Operations (Details) (Performance Fibers business [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014
Performance Fibers business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest expense allocated to the Performance Fibers business	$ (2,295)

Disposal Group, Including Discontinued Operation, Interest Expense Allocated to Discontinued Operations

No definition available.

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