Leases - Cash flow information and non-cash activity (Details) $ in Thousands  | 
9 Months Ended | 
|---|---|
| 
 Nov. 02, 2019  
USD ($) 
 | |
| Leases | |
| Cash paid for operating lease liabilities | $ 251,468 | 
| Operating lease assets obtained in exchange for operating lease liabilities (non-cash) | 287,645 | 
| Excluded cash received for tenant incentives | $ 57,160 | 
| X | ||||||||||
- Definition Refers to cash received for tenant incentives. No definition available. 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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