Annual Fund Operating Expenses (Active Bond Trust)	12 Months Ended
	May 01, 2011
Series I, Active Bond Trust
Operating Expenses:
Share Class	Series I
Management fee	0.60%
Distribution and service (12b-1) fees	0.05%
Other Expenses	0.04%
Total fund operating expenses	0.69%
Series II, Active Bond Trust
Operating Expenses:
Share Class	Series II
Management fee	0.60%
Distribution and service (12b-1) fees	0.25%
Other Expenses	0.04%
Total fund operating expenses	0.89%
Series NAV, Active Bond Trust
Operating Expenses:
Share Class	Series NAV
Management fee	0.60%
Distribution and service (12b-1) fees	none
Other Expenses	0.04%
Total fund operating expenses	0.64%