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Summary of Significant Accounting Policies:Inventory Valuation (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Inventory, Net [Abstract]    
Finished goods and work in process $ 641,695 $ 431,663
Logs 48,095 35,622
Other raw materials and supplies 37,415 36,195
Inventories $ 727,205 $ 503,480