Balance Sheet Of Partnership Co-Investments (Narrative) (Detail) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Oct. 31, 2015	Sep. 30, 2015
Fund I
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Operating term for Fund		10 years
Termination agreement date		2017-08
Pope Resources and ORMLLC combined ownership percentage		20.00%
Fund I | Subsequent Event
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Proceeds from investment in Fund I	$ 5.9
Fund II
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Operating term for Fund		10 years
Termination agreement date		2021-03
Pope Resources and ORMLLC combined ownership percentage		20.00%
Fund III
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Operating term for Fund		10 years
Termination agreement description		Fund III will terminate on the tenth anniversary of the completion of its investment period.  Fund III’s investment period will end at the earlier of placement of all committed capital or July 31, 2016.
Pope Resources and ORMLLC combined ownership percentage		5.00%
Partnership Interest | Fund I | Subsequent Event
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Proceeds from investment in Fund I	$ 1.1