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Commitments and Contingencies (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 06, 2017 | Apr. 28, 2017 | Jan. 30, 2015 | Jan. 31, 2014 | Jan. 28, 2011
Tax Years 2005 - 2006 |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Recovery of excessive taxes and interest |  |  |  |  | $ 1.6
Tax Years 2007, 2009 and 2010 |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Recovery of excessive taxes and interest |  |  |  | $ 1.6 |
Tax Year 2008 |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Recovery of excessive taxes and interest |  |  | $ 0.9 |  |
Tax Years 2011 and 2012 [Member] |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Recovery of excessive taxes and interest |  | $ 2.4 |  |  |
Tax Years 2013, 2014, 2015 and 2016 [Member] [Member] |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Recovery of excessive taxes and interest |  | $ 1.0 |  |  |
Subsequent event |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Recovery of excessive taxes and interest | $ 7.5 |  |  |  |

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