Leases - Lease Financing Obligations (Details) - USD ($) $ in Millions |
Feb. 02, 2019 |
Feb. 29, 2016 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Landlord funded construction, replacement cost of pre-existing property, and capitalized interest | $ 56.6 | |
| Lease financing obligations | 65.1 | |
| Put option | 7.5 | $ 11.4 |
| Other Noncurrent Liabilities [Member] | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Put option | $ 6.7 |