| Average Annual Total Returns As of 10/31/2009 | Average Annual Total Returns As of 9/30/2009 | ||||||||||
| Variable Investment Subaccounts | Inception Date | YTD % | 1 Year % | 3 Years % | 5 Years % | 10 Years % | Since Inception % | 1 Year % | 5 Years % | 10 Yrs/Since Inception % | |
| Balanced: | |||||||||||
| Conservative Balanced | 01/13/84 | 14.25 | 13.63 | -1.50 | 1.87 | 1.66 | 6.67 | 2.09 | 2.19 | 1.90 | |
| Flexible Managed | 01/13/84 | 13.06 | 11.54 | -3.13 | 1.59 | 1.21 | 7.24 | -0.97 | 1.93 | 1.49 | |