FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 5) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets:
Mortgage loans on real estate	$ 4,948,625	$ 5,351,902	[1]
Policy loans	865,391	879,819	[1]
Fixed maturities, held-to-maturity	300,000
Liabilities:
Stable value product account balances	2,510,559	2,769,510	[1]
Annuity account balances	10,658,463	10,946,848	[1]
Mortgage loan backed certificates		19,755	[1]
Debt
Non-recourse funding obligations	1,446,900	1,248,600	[1]
Golden Gate V
Debt
Non-recourse funding obligations	300,000
Level 3
Assets:
Fixed maturities, held-to-maturity	4,300
Carrying Amounts
Assets:
Mortgage loans on real estate	4,948,625	5,351,902
Policy loans	865,391	879,819
Fixed maturities, held-to-maturity	300,000
Liabilities:
Stable value product account balances	2,510,559	2,769,510
Annuity account balances	10,658,463	10,946,848
Mortgage loan backed certificates		19,755
Debt
Non-recourse funding obligations	1,446,900	1,248,600
Carrying Amounts | Golden Gate V
Debt
Non-recourse funding obligations	300,000
Fair Values | Golden Gate V
Debt
Non-recourse funding obligations	297,600
Fair Values | Level 3
Assets:
Mortgage loans on real estate	5,723,579	6,251,902
Policy loans	865,391	879,819
Fixed maturities, held-to-maturity	319,163
Liabilities:
Stable value product account balances	2,534,094	2,855,614
Annuity account balances	10,525,702	10,767,892
Mortgage loan backed certificates		19,893
Debt
Non-recourse funding obligations	$ 1,357,290	$ 1,060,275

[1] Recast from previously reported information