Debt - Debt Convenants - Excluding Timber Funds (Details) - Excluding Timber Funds	Dec. 31, 2020
Northwest Farm Credit Services Credit Facility
Debt Instrument [Line Items]
Covenant EBITDA to consolidated interest expense, Covenant Requirement	2.5
Covenant EBITDA to consolidated interest expense, Actual ratio	9.20
Covenant EBITDA to consolidated interest expense, Favorable	6.70
Covenant debt to net worth plus covenant debt, Covenant Requirement	0.65
Covenant debt to net worth plus covenant debt, Actual ratio	0.47
Covenant debt to net worth plus covenant debt, favorable	0.18
Ratio of loan To appraised value, Covenant Requirement	50
Ratio of loan to appraised value requirement actual	12
Ratio of loan to appraised value, favorable	0.38
Term Credit Agreement borrowings due 2028 at a variable interest rate of 1.8% at December 31, 2020
Debt Instrument [Line Items]
Covenant EBITDA to consolidated interest expense, Covenant Requirement	2.5
Covenant EBITDA to consolidated interest expense, Actual ratio	9.20
Covenant EBITDA to consolidated interest expense, Favorable	6.70
Covenant debt to net worth plus covenant debt, Covenant Requirement	0.65
Covenant debt to net worth plus covenant debt, Actual ratio	0.47
Covenant debt to net worth plus covenant debt, favorable	0.18