v3.25.2
Shareholder Report
 6 Months Ended
Jun. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Columbia Funds Variable Insurance Trust
Entity Central Index Key 0000815425
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
Columbia Variable Portfolio – Small Cap Value Fund - Class 1  
Shareholder Report [Line Items]  
Fund Name Columbia Variable Portfolio – Small Cap Value Fund
Class Name Class 1
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Columbia Variable Portfolio – Small Cap Value Fund (the Fund) for the period of January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Class 1
$
42		0.86
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.86% [1]
Net Assets $ 422,161,968
Holdings Count | Holding 224
Investment Company, Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
422,161,968
Total number of portfolio holdings
224
Portfolio turnover for the reporting period
45%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables be
lo
w show the in
vest
ment makeup of the Fund repres
ente
d as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise
noted. The Fund
's portfolio composition is subject to change.
Top Holdings
Essent Group Ltd.1.4
%
Kirby Corp.1.4
%
JBT Marel Corp.
1.2
%
UFP Industries, Inc.1.2
%
National Fuel Gas Co.1.2
%
Macerich Co. (The)1.1
%
Gates Industrial Corp. PLC1.1
%
Teleflex, Inc.1.0
%
Moog, Inc., Class A1.0
%
Vontier Corp.1.0
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Essent Group Ltd.1.4
%
Kirby Corp.1.4
%
JBT Marel Corp.
1.2
%
UFP Industries, Inc.1.2
%
National Fuel Gas Co.1.2
%
Macerich Co. (The)1.1
%
Gates Industrial Corp. PLC1.1
%
Teleflex, Inc.1.0
%
Moog, Inc., Class A1.0
%
Vontier Corp.1.0
%
Columbia Variable Portfolio – Small Cap Value Fund - Class 2  
Shareholder Report [Line Items]  
Fund Name Columbia Variable Portfolio – Small Cap Value Fund
Class Name Class 2
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Columbia Variable Portfolio – Small Cap Value Fund (the Fund) for the period of January 1, 2025 to June 30, 2025.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the r
e
porting period?
(Based on a hypothetical $10,000 investment)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Class 2
$
54		1.11
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.11% [1]
Net Assets $ 422,161,968
Holdings Count | Holding 224
Investment Company, Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
422,161,968
Total number of portfolio holdings
224
Portfolio turnover for the reporting period
45%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represen
ted as a
percentage of
Fund
net assets. Derivatives are excluded from the tables unless otherwise note
d. The
Fund's portfolio composition is subject t
o c
hange.
Top Holdings
Essent Group Ltd.1.4
%
Kirby Corp.1.4
%
JBT Marel Corp.
1.2
%
UFP Industries, Inc.1.2
%
National Fuel Gas Co.1.2
%
Macerich Co. (The)1.1
%
Gates Industrial Corp. PLC1.1
%
Teleflex, Inc.1.0
%
Moog, Inc., Class A1.0
%
Vontier Corp.1.0
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Essent Group Ltd.1.4
%
Kirby Corp.1.4
%
JBT Marel Corp.
1.2
%
UFP Industries, Inc.1.2
%
National Fuel Gas Co.1.2
%
Macerich Co. (The)1.1
%
Gates Industrial Corp. PLC1.1
%
Teleflex, Inc.1.0
%
Moog, Inc., Class A1.0
%
Vontier Corp.1.0
%
[1] Annualized.