Supplemental Balance Sheet Disclosures (Narrative) (Details)	3 Months Ended
	Mar. 31, 2020
Fund Two and Three
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Operating term for Fund	10 years
Fund IV
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Operating term for Fund	15 years
Fund II | Pope Resources And Olympic Resource Management LLC
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest	20.00%
Fund III | Pope Resources And Olympic Resource Management LLC
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest	5.00%
Fund IV | Pope Resources And Olympic Resource Management LLC
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest	15.00%