T. Rowe Price Mid Cap Growth Portfolio Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Russell 3000 Index (reflects no deduction for mutual fund fees or expenses)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.15% | 13.15% | 14.29% |
| Russell Midcap Growth Index (reflects no deduction for mutual fund fees or expenses)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 8.66% | 6.65% | 12.49% |
| Class A | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.75% | 4.08% | 10.05% |
| Class B | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.42% | 3.83% | 9.77% |
| Class E | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.62% | 3.92% | 9.88% |