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Summary of Significant Accounting Policies:Property and Equipment (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 1,124,157 $ 1,107,257
Less accumulated depreciation (677,384) (630,308)
Property and equipment, net 446,773 476,949
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 38,274 39,304
Buildings [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 144,538 140,008
Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 61,955 61,187
Mobile equipment, information technology, and office furniture [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 171,438 165,445
Machinery and equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross 677,307 666,467
Construction in progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 30,645 $ 34,846