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 Series Trust II
Entity Central Index Key 0001413032
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
Columbia Variable Portfolio - Select Small Cap Value Fund - Class 1  
Shareholder Report [Line Items]  
Fund Name Columbia Variable Portfolio – Select 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 – Select 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		0.85
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.85% [1]
Net Assets $ 101,835,612
Holdings Count | Holding 53
Investment Company, Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Key Fund
S
tatistics
Fund net assets
$
101,835,612
Total number of portfolio holdings
53
Portfolio turnover for the reporting period
1%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeu
p of the
Fun
d re
presented as a percentage of Fund
net
assets. Derivatives are excluded f
rom the tables
unless otherwise noted. The Fund's
portfolio composition
is subject to change.
Top Holdings
Axos Financial, Inc.4.1
%
Stock Yards Bancorp, Inc.3.3
%
Popular, Inc.3.3
%
MACOM Technology Solutions Holdings, Inc.3.1
%
ATI, Inc.3.0
%
Radian Group, Inc.2.9
%
Kemper Corp.2.8
%
Kratos Defense & Security Solutions, Inc.2.7
%
Hanover Insurance Group, Inc. (The)2.7
%
Primoris Services Corp.2.7
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Axos Financial, Inc.4.1
%
Stock Yards Bancorp, Inc.3.3
%
Popular, Inc.3.3
%
MACOM Technology Solutions Holdings, Inc.3.1
%
ATI, Inc.3.0
%
Radian Group, Inc.2.9
%
Kemper Corp.2.8
%
Kratos Defense & Security Solutions, Inc.2.7
%
Hanover Insurance Group, Inc. (The)2.7
%
Primoris Services Corp.2.7
%
Columbia Variable Portfolio - Select Small Cap Value Fund - Class 2  
Shareholder Report [Line Items]  
Fund Name Columbia Variable Portfolio – Select 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 – Select 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
reporti
ng 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		1.10
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.10% [1]
Net Assets $ 101,835,612
Holdings Count | Holding 53
Investment Company, Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
101,835,612
Total number of portfolio holdings
53
Portfolio turnover for the reporting period
1%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below s
how
the investme
nt m
akeup of the Fund represented as a perc
entage
of Fund net assets. Derivatives are excluded from the tables unless otherwise noted.
The Fund
's portfolio composition is subject to change.
Top Holdings
Axos Financial, Inc.4.1
%
Stock Yards Bancorp, Inc.3.3
%
Popular, Inc.3.3
%
MACOM Technology Solutions Holdings, Inc.3.1
%
ATI, Inc.3.0
%
Radian Group, Inc.2.9
%
Kemper Corp.2.8
%
Kratos Defense & Security Solutions, Inc.2.7
%
Hanover Insurance Group, Inc. (The)2.7
%
Primoris Services Corp.2.7
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Axos Financial, Inc.4.1
%
Stock Yards Bancorp, Inc.3.3
%
Popular, Inc.3.3
%
MACOM Technology Solutions Holdings, Inc.3.1
%
ATI, Inc.3.0
%
Radian Group, Inc.2.9
%
Kemper Corp.2.8
%
Kratos Defense & Security Solutions, Inc.2.7
%
Hanover Insurance Group, Inc. (The)2.7
%
Primoris Services Corp.2.7
%
Columbia Variable Portfolio - Select Small Cap Value Fund - Class 3  
Shareholder Report [Line Items]  
Fund Name Columbia Variable Portfolio – Select Small Cap Value Fund
Class Name Class 3
No Trading Symbol Flag true
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Columbia Variable Portfolio – Select 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 3
$
47		0.97
%
(a)
(a)
Annualized.
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.97% [1]
Net Assets $ 101,835,612
Holdings Count | Holding 53
Investment Company, Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
101,835,612
Total number of portfolio holdings
53
Portfolio turnover for the reporting period
1%
Holdings [Text Block]
Graphical Representation of F
u
nd
 
Holdings
The tables below show t
he inv
estment makeup of the Fund represente
d as
a percentage of Fund net assets. Derivatives are excluded
fro
m the tables unless otherwi
se not
ed. The F
und's por
tfolio composition is subject to change.
Top Holdings
Axos Financial, Inc.4.1
%
Stock Yards Bancorp, Inc.3.3
%
Popular, Inc.3.3
%
MACOM Technology Solutions Holdings, Inc.3.1
%
ATI, Inc.3.0
%
Radian Group, Inc.2.9
%
Kemper Corp.2.8
%
Kratos Defense & Security Solutions, Inc.2.7
%
Hanover Insurance Group, Inc. (The)2.7
%
Primoris Services Corp.2.7
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Axos Financial, Inc.4.1
%
Stock Yards Bancorp, Inc.3.3
%
Popular, Inc.3.3
%
MACOM Technology Solutions Holdings, Inc.3.1
%
ATI, Inc.3.0
%
Radian Group, Inc.2.9
%
Kemper Corp.2.8
%
Kratos Defense & Security Solutions, Inc.2.7
%
Hanover Insurance Group, Inc. (The)2.7
%
Primoris Services Corp.2.7
%
[1] Annualized.