The interactive data file included as an exhibit to this filing relates to the supplement to the prospectus for Variable Portfolio-PIMCO Mortgage-Backed Securities Fund filed pursuant to Rule 497(e) under the Securities Act of 1933, as amended, on January 18, 2013 (Accession No. 0001193125-13-016927), which is incorporated herein by reference.
The Principal Investment Strategies of the Fund, as described under Summary of VP-PIMCO Mortgage-Backed Securities Fund, are superseded and replaced as follows: PRINCIPAL INVESTMENT STRATEGIES OF THE FUND Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in mortgage-related fixed income instruments. These instruments have varying maturities and include but are not limited to mortgage pass-through securities, collateralized mortgage obligations, commercial mortgage-backed securities, non-agency mortgage securities, and mortgage dollar rolls, and may be represented by forwards or derivatives such as options, futures contracts or swap agreements.The Fund invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody’s, or equivalently rated by S&P or Fitch, or, if unrated, determined by the Subadviser (as defined below) to be of comparable quality. The Fund may invest up to 10% of its total assets in non-agency mortgage-related fixed income instruments. The Fund may also invest up to 5% of its total assets in mortgage-related high yield (i.e., below investment grade or unrated) instruments. The average portfolio duration of the Fund normally varies from one to seven years based on the Subadviser’s forecast for interest rates. |
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| Label | Element | Value | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||||
| Registrant Name | dei_EntityRegistrantName | Columbia Funds Variable Series Trust II | |||||||||||||||
| Prospectus Date | rr_ProspectusDate | May 01, 2012 | |||||||||||||||
| Supplement [Text Block] | cfvst10_SupplementTextBlock |
The Principal Investment Strategies of the Fund, as described under Summary of VP-PIMCO Mortgage-Backed Securities Fund, are superseded and replaced as follows: PRINCIPAL INVESTMENT STRATEGIES OF THE FUND Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in mortgage-related fixed income instruments. These instruments have varying maturities and include but are not limited to mortgage pass-through securities, collateralized mortgage obligations, commercial mortgage-backed securities, non-agency mortgage securities, and mortgage dollar rolls, and may be represented by forwards or derivatives such as options, futures contracts or swap agreements.The Fund invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody’s, or equivalently rated by S&P or Fitch, or, if unrated, determined by the Subadviser (as defined below) to be of comparable quality. The Fund may invest up to 10% of its total assets in non-agency mortgage-related fixed income instruments. The Fund may also invest up to 5% of its total assets in mortgage-related high yield (i.e., below investment grade or unrated) instruments. The average portfolio duration of the Fund normally varies from one to seven years based on the Subadviser’s forecast for interest rates. |
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VP - PIMCO Mortgage-Backed Securities Fund
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| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||||
| Supplement [Text Block] | cfvst10_SupplementTextBlock |
The Principal Investment Strategies of the Fund, as described under Summary of VP-PIMCO Mortgage-Backed Securities Fund, are superseded and replaced as follows: PRINCIPAL INVESTMENT STRATEGIES OF THE FUND Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in mortgage-related fixed income instruments. These instruments have varying maturities and include but are not limited to mortgage pass-through securities, collateralized mortgage obligations, commercial mortgage-backed securities, non-agency mortgage securities, and mortgage dollar rolls, and may be represented by forwards or derivatives such as options, futures contracts or swap agreements.The Fund invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody’s, or equivalently rated by S&P or Fitch, or, if unrated, determined by the Subadviser (as defined below) to be of comparable quality. The Fund may invest up to 10% of its total assets in non-agency mortgage-related fixed income instruments. The Fund may also invest up to 5% of its total assets in mortgage-related high yield (i.e., below investment grade or unrated) instruments. The average portfolio duration of the Fund normally varies from one to seven years based on the Subadviser’s forecast for interest rates. |
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| Strategy [Heading] | rr_StrategyHeading | PRINCIPAL INVESTMENT STRATEGIES OF THE FUND | |||||||||||||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in mortgage-related fixed income instruments. These instruments have varying maturities and include but are not limited to mortgage pass-through securities, collateralized mortgage obligations, commercial mortgage-backed securities, non-agency mortgage securities, and mortgage dollar rolls, and may be represented by forwards or derivatives such as options, futures contracts or swap agreements.The Fund invests primarily in securities that are in the highest rating category, but may invest up to 10% of its total assets in investment grade securities rated below Aaa by Moody’s, or equivalently rated by S&P or Fitch, or, if unrated, determined by the Subadviser (as defined below) to be of comparable quality. The Fund may invest up to 10% of its total assets in non-agency mortgage-related fixed income instruments. The Fund may also invest up to 5% of its total assets in mortgage-related high yield (i.e., below investment grade or unrated) instruments. The average portfolio duration of the Fund normally varies from one to seven years based on the Subadviser’s forecast for interest rates. | |||||||||||||||
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Document and Entity Information
|
12 Months Ended |
|---|---|
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May 01, 2012
|
|
| Risk/Return: | |
| Document Type | Other |
| Document Period End Date | Dec. 31, 2011 |
| Registrant Name | Columbia Funds Variable Series Trust II |
| Central Index Key | 0001413032 |
| Amendment Flag | false |
| Document Creation Date | Jan. 18, 2013 |
| Document Effective Date | Jan. 18, 2013 |
| Prospectus Date | May 01, 2012 |
| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Registrant Name | dei_EntityRegistrantName | Columbia Funds Variable Series Trust II |
| Prospectus Date | rr_ProspectusDate | May 01, 2012 |
| Document Creation Date | dei_DocumentCreationDate | Jan. 18, 2013 |