S000000003 [Member] Performance Management - SA Franklin Core Fixed Income Portfolio

Dec. 31, 2025

Bar Chart and Performance Table [Heading]

Performance Information

The Portfolio has not commenced operations as of the date of this Prospectus. The returns presented for the Portfolio reflect the performance of the Survivor fund (as defined below). It is anticipated that on or about December 4, 2026, the Portfolio will acquire all of the assets and liabilities of the Guardian Core Fixed Income VIP Fund and Guardian U.S. Government/Credit VIP Fund, each a series of Guardian Variable Products Trust (each, a “Predecessor fund,” and collectively, the “Predecessor funds”), through a reorganization (the “Reorganization”). As a result of the Reorganization, the Portfolio will adopt the performance and financial history of the Guardian Core Fixed Income VIP Fund (the “Survivor fund”). The Portfolio has a different investment goal, strategies, portfolio management team and contractual fees and expenses than the Survivor fund. The performance figures have not been adjusted to reflect the Portfolio’s expenses. If the Survivor fund’s performance information had been adjusted to reflect the Portfolio’s expenses, the performance may have been higher or lower for a given period depending on the expenses incurred by the Survivor fund for that period.

The following bar chart illustrates the risks of investing in the Portfolio by showing changes in the Survivor fund’s performance from calendar year to calendar year, and the table compares the Survivor fund’s average annual returns to those of the Bloomberg U.S. Aggregate Bond Index (a broad-based securities market index). Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown. Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.

Performance Past Does Not Indicate Future [Text]

Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.

Performance Information Illustrates Variability of Returns [Text]

Performance One Year or Less [Text]

The Portfolio has not commenced operations as of the date of this Prospectus.

Bar Chart Does Not Reflect Sales Loads [Text]

Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown.

Bar Chart [Heading]

Annual Returns (by calendar year)

Bar Chart Closing [Text Block]

During the period shown in the bar chart: