Balance Sheet Of Partnership Co-Investments (Partnership's Consolidated Balance Sheet included Assets and Liabilities of Funds) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets:
Cash	$ 2,960	$ 1,066
Land and timber held for sale	9,513	20,503
Total current assets	18,327	32,206
Properties and equipment, net of accumulated depletion and depreciation (2017 - $48,238; 2016 - $38,306)	359,321	364,180
Properties and equipment, accumulated depletion and depreciation	123,239	110,533
Total assets	378,782	399,050
Liabilities and equity:
Current liabilities	502	398
Long-term debt, net of unamortized debt issuance costs	140,142	125,291
Total liabilities, partners’ capital and noncontrolling interests	378,782	399,050
ORM Timber Funds
Assets:
Cash	2,960	1,066
Land and timber held for sale	0	13,941
Other current assets	1,489	2,195
Total current assets	4,449	17,202
Properties and equipment, net of accumulated depletion and depreciation (2017 - $48,238; 2016 - $38,306)	240,019	249,197
Properties and equipment, accumulated depletion and depreciation	48,238	38,306
Total assets	244,468	266,399
Liabilities and equity:
Current liabilities	2,437	2,256
Long-term debt, net of unamortized debt issuance costs	57,285	57,268
Total liabilities	59,722	59,524
Funds’ equity	184,746	206,875
Total liabilities, partners’ capital and noncontrolling interests	$ 244,468	$ 266,399