MERGER WITH POPE RESOURCES (Fair Value of Identifiable Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	May 08, 2020
Pope Resources
Restructuring Cost and Reserve [Line Items]
Cash		$ 16,250
Accounts receivable		4,074
Other current assets		1,150
Timber and Timberlands		987,419
Higher and Better Use Timberlands and Real Estate Development Investments		27,722
Property, plant and equipment		8,307
Other assets		4,297
Total liabilities assumed		1,049,219
Accounts payable		566
Accrued interest		519
Other current liabilities		8,350
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt		25,084
Long-term debt		89,261
Long-term environmental liabilities		11,000
Other non-current liabilities		4,137
Total liabilities assumed		138,917
Net identifiable assets		910,302
Less: noncontrolling interest		(372,381)
Total net assets acquired		537,921
Deferred income tax liability	$ 4,000
Core Timberlands
Restructuring Cost and Reserve [Line Items]
Cash		7,380
Accounts receivable		2,280
Other current assets		651
Timber and Timberlands		515,519
Higher and Better Use Timberlands and Real Estate Development Investments		27,722
Property, plant and equipment		8,307
Other assets		4,297
Total liabilities assumed		566,156
Accounts payable		274
Accrued interest		244
Other current liabilities		7,233
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt		0
Long-term debt		53,502
Long-term environmental liabilities		11,000
Other non-current liabilities		4,137
Total liabilities assumed		76,390
Net identifiable assets		489,766
Less: noncontrolling interest		(3,307)
Total net assets acquired		486,459
Timber Funds
Restructuring Cost and Reserve [Line Items]
Cash		8,870
Accounts receivable		1,794
Other current assets		499
Timber and Timberlands		471,900
Higher and Better Use Timberlands and Real Estate Development Investments		0
Property, plant and equipment		0
Other assets		0
Total liabilities assumed		483,063
Accounts payable		292
Accrued interest		275
Other current liabilities		1,117
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt		25,084
Long-term debt		35,759
Long-term environmental liabilities		0
Other non-current liabilities		0
Total liabilities assumed		62,527
Net identifiable assets		420,536
Less: noncontrolling interest		(369,074)
Total net assets acquired		$ 51,462