Notes Payable, Current Maturities and Debt: Debt Covenants (Details)	Mar. 31, 2019
Maximum
Line of Credit Facility [Line Items]
Consolidated Indebtedness to Capitalization Ratio	0.65
Revolving Credit Facility
Line of Credit Facility [Line Items]
Recourse Leverage Ratio	58.10%
Debt instrument, covenant, Leverage Recourse Ratio	0.65