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Organization and Basis of Presentation (Recent Accounting Pronouncements) (Details) - USD ($) $ in Thousands | 6 Months Ended |  |
--- | --- | --- | ---
Jul. 29, 2018 | Apr. 29, 2018 | Jan. 28, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Document Fiscal Year Focus | 2019 |  |
Retained earnings | $ 549,404 |  | $ 502,346
Prepaid taxes | $ 9,347 |  | $ 11,809
Accounting Standards Update 2014-09 | Restatement Adjustment |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Retained earnings |  | $ 11,100 |
Accounting Standards Update 2016-16 | Restatement Adjustment |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Retained earnings |  | 1,800 |
Deferred tax assets |  | 3,700 |
Prepaid taxes |  | $ 5,500 |

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