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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 31, 2020 | Feb. 01, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Target shares earned | 100.00% |
Vesting period | 4 years |
Options awards expiration period | 10 years |
Performance Shares |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Vesting period | 3 years |
Compensation expense not yet recognized | $ 4.2 |
Compensation expense not yet recognized, recognition period | 1 year 9 months 18 days |
Performance awards period considered | 3 years | 3 years
Share-based Payment Arrangement, Option |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Vesting period | 4 years |
Options awards expiration period | 10 years |
Compensation expense not yet recognized | $ 0.9 |
Compensation expense not yet recognized, recognition period | 1 year 1 month 6 days |
Options awards exercisable | 171,567 |
Options exercised | 0 |
Restricted Stock Units (RSUs) |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Vesting period | 3 years |
Compensation expense not yet recognized | $ 7.7 |
Compensation expense not yet recognized, recognition period | 1 year 8 months 12 days |
Minimum |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Target shares earned | 50.00% |
Maximum |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Target shares earned | 200.00% |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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