Balance Sheet Of Partnership Co-Investments (Partnership's Consolidated Balance Sheet included Assets and Liabilities of Funds) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets:
Cash	$ 4,575	$ 1,636
Total current assets	24,393	18,030
Properties and equipment, net of accumulated depreciation	451,438	347,335
Other assets	8,862	15,308
Total assets	484,693	380,673
Liabilities and equity:
Current liabilities	1,165	401
Total liabilities, partners’ capital and noncontrolling interests	484,693	380,673
Funds Timber
Assets:
Cash	4,575	1,636
Other current assets	7,905	2,481
Total current assets	12,480	4,117
Properties and equipment, net of accumulated depreciation	332,068	235,046
Other assets	0	5,683
Total assets	344,548	244,846
Liabilities and equity:
Current liabilities	3,635	2,862
Long-term debt, net of unamortized debt issuance costs	57,307	57,291
Funds’ equity	283,606	184,693
Total liabilities, partners’ capital and noncontrolling interests	$ 344,548	$ 244,846