Note 5. Fair Value Disclosures: Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 3,285	$ 7,442	$ 3,034	$ 17,181
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	4	(2,157)	286	(6,447)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	18	230	49	994
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	3,271	4,594	3,271	4,594
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		2,343		11,663
Net realized investment gains
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		1,882		6,517
Commercial Mortgage Backed Securities
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	906	571	593	570
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	18	1	331	2
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	924	572	924	572
US States and Political Subdivisions Debt Securities
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	2,379	2,501	2,441	2,558
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	(14)	(18)	(45)	(60)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements	18	10	49	25
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	2,347	2,473	2,347	2,473
Residential Mortgage Backed Securities Member
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		4,370		14,053
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)		(2,140)		(6,389)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		220		969
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value		1,549		1,549
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales		2,343		11,663
Residential Mortgage Backed Securities Member | Net realized investment gains
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings		$ 1,882		$ 6,517