Summary of Significant Accounting Policies - Reclassifications (Details) (USD $) In Billions, unless otherwise specified	Dec. 31, 2014
Accounting Policies [Abstract]
Contributions of Assets, Net, Liabilities, and Equity to Spinoff	$ 1.2

Contributions of Assets, Net, Liabilities, and Equity to Spinoff

No definition available.

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