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Organization and Basis of Presentation (Recent Accounting Pronouncements) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Apr. 29, 2018 | Jan. 28, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Document Fiscal Year Focus | 2019 |
Retained earnings | $ 524,238 | $ 502,346
Prepaid taxes | 12,874 | $ 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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