Commitments and Contingencies (Narrative) (Details) $ in Thousands	2 Months Ended	12 Months Ended
	Mar. 22, 2018 USD ($) lease	Feb. 03, 2018 USD ($)	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)
Commitments and Contingencies [Line Items]
Lease renewal period, minimum (years)		5 years
Operating lease agreement extension term (years)		10 years
Operating lease agreement expiration period		2033
Rent expense		$ 98,200	$ 78,500	$ 66,000
Contingent rents		600	$ 500	$ 600
Operating Leases, Future Minimum Payments Due		948,000
Purchase commitments		4,900
Key Employees [Member]
Commitments and Contingencies [Line Items]
Maximum additional payments upon employee separation		$ 7,200
Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Number Of Leases | lease	15
Average Lease Term Period	10 years
Operating Leases, Future Minimum Payments Due	$ 28,900