Business Description And Organization (Details)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Schedule of Limited Partnership Ownership Interest By Partners [Line Items]
Limited Partners or Members Ownership Interest in Company (in hundredths)	100.00%
AXA and its Subsidiaries Ownership Interest in Holding company (in hundredths)	1.40%
General partnership units owned in Holding company (in units)	100,000	100,000
General partnership interest (in hundredths)	1.00%
AXA and its Subsidiaries economic interest in Company (in hundredths)	64.40%
AXA And Its Subsidiaries [Member]
Schedule of Limited Partnership Ownership Interest By Partners [Line Items]
Limited Partners or Members Ownership Interest in Company (in hundredths)	60.90%
Holdings [Member]
Schedule of Limited Partnership Ownership Interest By Partners [Line Items]
Limited Partners or Members Ownership Interest in Company (in hundredths)	37.50%
Unaffiliated Holders [Member]
Schedule of Limited Partnership Ownership Interest By Partners [Line Items]
Limited Partners or Members Ownership Interest in Company (in hundredths)	1.60%