Investments (Trading Account Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Amortized Cost	$ 7,290	$ 7,190
Fair Value	8,430	7,916
Fixed Maturities [Member] \| Asset-backed Securities [Member]
Amortized Cost	1,982	1,973
Fair Value	2,014	2,022
Equity Securities [Member]
Amortized Cost	5,308	5,217
Fair Value	$ 6,416	$ 5,894

This item represents marketable and other securities categorized as trading securities as of the balance sheet date that support certain products which are experience rated, meaning that it is expected the investment results associated with these products will ultimately accrue to contractholders.

No definition available.

Name:	cik881453_TradingAccountAssetsSupportingInsuranceLiabilitiesFairValue
Namespace Prefix:	cik881453_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant