S000028695 [Member] Expense Example, No Redemption - CTIVP - CenterSquare Real Estate Fund |
Dec. 31, 2025
USD ($)
|
|---|---|
| CTIVP - CenterSquare Real Estate Fund Class 1 | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 86 |
| Expense Example, No Redemption, 3 Years | 268 |
| Expense Example, No Redemption, 5 Years | 466 |
| Expense Example, No Redemption, 10 Years | 1,037 |
| CTIVP - CenterSquare Real Estate Fund Class 2 | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 111 |
| Expense Example, No Redemption, 3 Years | 347 |
| Expense Example, No Redemption, 5 Years | 601 |
| Expense Example, No Redemption, 10 Years | $ 1,329 |