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Subsequent events (Details) - Subsequent Event $ in Millions | Feb. 26, 2019 USD ($) store employee
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Subsequent Event [Line Items] |
Number of stores closed | store | 22
Minimum |
Subsequent Event [Line Items] |
Charges associated with store closing | $ 23.0
Maximum |
Subsequent Event [Line Items] |
Charges associated with store closing | 25.0
Acceleration of Rent Expense |
Subsequent Event [Line Items] |
Charges associated with store closing | 16.0
Write-offs of Other Assets | Minimum |
Subsequent Event [Line Items] |
Charges associated with store closing | 5.0
Write-offs of Other Assets | Maximum |
Subsequent Event [Line Items] |
Charges associated with store closing | 6.0
Employee Severance |
Subsequent Event [Line Items] |
Charges associated with store closing | 0.5
Other Costs | Minimum |
Subsequent Event [Line Items] |
Charges associated with store closing | 1.5
Other Costs | Maximum |
Subsequent Event [Line Items] |
Charges associated with store closing | $ 2.5
Retail Store Employees |
Subsequent Event [Line Items] |
Number of positions eliminated | employee | 185
Corporate Employees |
Subsequent Event [Line Items] |
Number of positions eliminated | employee | 8

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- Definition Restructuring and Related Cost, Number of Stores Closed + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition The number of positions eliminated during the period as a result of restructuring activities. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Period Type: |