S000028695 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 188 Months Ended |
|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Russell 1000® Index (reflects no deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 17.37% | 13.59% | 14.59% | |
| FTSE Nareit Equity REITs Index (reflects no deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 2.88% | 6.63% | 5.70% | |
| CTIVP - CenterSquare Real Estate Fund Class 1 | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 2.19% | 6.60% | 5.70% | |
| Performance Inception Date | May 07, 2010 | |||
| CTIVP - CenterSquare Real Estate Fund Class 2 | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 2.11% | 6.36% | 5.44% | |
| Performance Inception Date | May 07, 2010 |