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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType Other
Document Period End Date dei_DocumentPeriodEndDate Feb. 29, 2012
Registrant Name dei_EntityRegistrantName COLUMBIA FUNDS SERIES TRUST
Central Index Key dei_EntityCentralIndexKey 0001097519
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Mar. 15, 2013
Document Effective Date dei_DocumentEffectiveDate Mar. 15, 2013
Prospectus Date rr_ProspectusDate Mar. 15, 2013
(Columbia Overseas Value Fund )
  
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] columbia_SupplementTextBlock
COLUMBIA FUNDS SERIES TRUST

Columbia Overseas Value Fund
(the "Fund")

Supplement dated March 15, 2013 to
the Fund's prospectus dated July 1, 2012, as supplemented

The Fund's prospectus offering Class A, C, I, R and W shares is revised and supplemented as follows to reflect certain fee changes effective March 16, 2013:

Operating Expenses [TextBlock] columbia_SupplementTextBlock02

The section of the Fund's prospectus entitled "Fees and Expenses of the Fund" is modified by deleting the table entitled "Annual Fund Operating Expenses" in its entirety and replacing it with the following:
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2014-06-30
Expense Example Supplement [Text Block] columbia_SupplementTextBlock03

The section of the Fund's prospectus entitled "Example" is modified by deleting the table in its entirety and replacing it with the following:

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire on June 30, 2014, they are only reflected in the 1 year example and the first year of the 3, 5 and 10 year examples.

Based on the assumptions listed above, your costs would be:

(Columbia Overseas Value Fund ) | Class A Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.46% [1]
Total annual Fund operating expenses rr_ExpensesOverAssets 1.58%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.17%) [3]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 1.41%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 710
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,029
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,371
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,332
(Columbia Overseas Value Fund ) | Class C Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.46% [1]
Total annual Fund operating expenses rr_ExpensesOverAssets 2.33%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.17%) [3]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 2.16%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 319
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 711
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,230
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,653
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 219
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 711
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,230
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,653
(Columbia Overseas Value Fund ) | Class I Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.46% [1]
Total annual Fund operating expenses rr_ExpensesOverAssets 1.33%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.37%) [3]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 0.96%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 98
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 385
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 693
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,569
(Columbia Overseas Value Fund ) | Class R Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.46% [1]
Total annual Fund operating expenses rr_ExpensesOverAssets 1.83%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.17%) [3]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 1.66%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 169
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 559
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 975
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,134
(Columbia Overseas Value Fund ) | Class W Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.46% [1]
Total annual Fund operating expenses rr_ExpensesOverAssets 1.58%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.17%) [3]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 1.41%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 144
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 482
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 844
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,864
(Columbia Overseas Value Fund )
  
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] columbia_SupplementTextBlock
COLUMBIA FUNDS SERIES TRUST

Columbia Overseas Value Fund
(the "Fund")

Supplement dated March 15, 2013 to
the Fund's prospectus dated February 28, 2013

The Fund's prospectus offering Class B and K shares is revised and supplemented as follows to reflect certain fee changes effective March 16, 2013:

Operating Expenses [TextBlock] columbia_SupplementTextBlock02

The section of the Fund's prospectus entitled "Fees and Expenses of the Fund" is modified by deleting the table entitled "Annual Fund Operating Expenses" and the expense example table in the subsection entitled "Example" and replacing them with the following:

Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2014-06-30
(Columbia Overseas Value Fund ) | Class B Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.46% [2]
Total annual Fund operating expenses rr_ExpensesOverAssets 2.33%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.17%) [4]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 2.16%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 719
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,011
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,430
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,465
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 219
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 711
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,230
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,465
(Columbia Overseas Value Fund ) | Class K Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.51% [2]
Total annual Fund operating expenses rr_ExpensesOverAssets 1.38%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.12%) [4]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 1.26%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 128
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 425
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 744
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,647
(Columbia Overseas Value Fund )
  
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] columbia_SupplementTextBlock
COLUMBIA FUNDS SERIES TRUST

Columbia Overseas Value Fund
(the "Fund")

Supplement dated March 15, 2013 to
the Fund's prospectus dated July 1, 2012, as supplemented

The Fund's prospectus offering Class Z shares is revised and supplemented as follows to reflect certain fee changes effective March 16, 2013:

Operating Expenses [TextBlock] columbia_SupplementTextBlock02

The section of the Fund's prospectus entitled "Fees and Expenses of the Fund" is modified by deleting the table entitled "Annual Fund Operating Expenses" in its entirety and replacing it with the following:
Operating Expenses Caption [Text] rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2014-06-30
Expense Example Supplement [Text Block] columbia_SupplementTextBlock03

The section of the Fund's prospectus entitled "Example" is modified by deleting the table in its entirety and replacing it with the following:

Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire on June 30, 2014, they are only reflected in the 1 year example and the first year of the 3, 5 and 10 year examples.

Based on the assumptions listed above, your costs would be:

(Columbia Overseas Value Fund ) | Class Z Shares
  
Risk/Return: rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.87%
Distribution and/or service (Rule 12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.46% [1]
Total annual Fund operating expenses rr_ExpensesOverAssets 1.33%
Fee waivers and/or reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.17%) [5]
Total annual Fund operating expenses after fee waivers and/or reimbursements rr_NetExpensesOverAssets 1.16%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 118
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 405
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 713
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,587
[1] Other expenses have been restated to reflect contractual changes to certain fees paid by the Fund.
[2] Other expenses are based on estimated amounts for the Fund's current fiscal year.
[3] Columbia Management Investment Advisers, LLC (the Investment Manager) and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until June 30, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses, subject to applicable exclusions, will not exceed the annual rates of 1.41% for Class A, 2.16% for Class C, 0.96% for Class I, 1.66% for Class R and 1.41% for Class W.
[4] Columbia Management Investment Advisers, LLC (the Investment Manager) and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until June 30, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses, subject to applicable exclusions, will not exceed the annual rates of 2.16% for Class B and 1.26% for Class K.
[5] Columbia Management Investment Advisers, LLC (the Investment Manager) and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until June 30, 2014, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses, subject to applicable exclusions, will not exceed the annual rate of 1.16% for Class Z.