1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Revenue from Contracts with Customers (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Details
Interest related income	$ 213.1	$ 200.6	$ 172.8
Insurance related revenue	49.8	49.4	44.4
Other revenues	$ 5.4	$ 6.0	$ 5.7

Represents the monetary amount of Insurance related revenue, during the indicated time period.

No definition available.

Name:	fil_InsuranceRelatedRevenue
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration