Balance Sheet Of Partnership Co-Investments (Partnership's Consolidated Balance Sheet included Assets and Liabilities of Funds - Non Printing) (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Timber, Timberland and roads, accumulated depletion	$ 100,477	$ 93,359
ORM Timber Funds
Condensed Financial Statements, Captions [Line Items]
Timber, Timberland and roads, accumulated depletion	$ 32,495	$ 26,738

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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