Investment Information (Details - Other Than Temporary Impairments Recognized In Earnings) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	$ 1,684	$ 4,410	$ 4,364	$ 6,016
Fixed maturities [Member]
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	1,310	2,757	2,797	4,363
Fixed maturities [Member] | Mortgage backed securities [Member]
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	1,310	1,816	2,428	2,261
Fixed maturities [Member] | Asset backed securities [Member]
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	0	813	10	1,974
Fixed maturities [Member] | Corporate bonds [Member]
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	0	128	359	128
Investment of funds received under securities lending arrangements [Member]
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	374	1,653	1,230	1,653
Equity securities [Member]
Other than temporary impairments recognized in earnings by asset class:
Net impairment losses recognized in earnings	$ 0	$ 0	$ 337	$ 0