Commitments and Contingencies, Operating Leases (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Aug. 03, 2019 USD ($) Option	Aug. 04, 2018 USD ($)	Aug. 03, 2019 USD ($)	Aug. 04, 2018 USD ($)	Feb. 02, 2019 USD ($)
Commitments [Abstract]
Renewal term of leases		5 years		5 years
Lease cost for operating leases		$ 16,400	$ 12,100	$ 31,700	$ 24,100
Maturity of Operating Lease Liabilities [Abstract]
2019		34,186		34,186
2020		60,455		60,455
2021		59,442		59,442
2022		53,260		53,260
2023		48,868		48,868
Thereafter		118,849		118,849
Total undiscounted lease payments	[1]	375,060		375,060
Less: Imputed interest		(55,717)		(55,717)
Total lease obligations		319,343		319,343
Less: Current obligations under leases		(54,628)	0	(54,628)	0	$ 0
Long-term lease obligations		264,715	$ 0	264,715	$ 0	$ 0
Minimum lease payments for leases signed, but not commenced		$ 45,300		45,300
Other Information Related to Operating Leases [Abstract]
Cash paid for operating leases				31,846
Non-cash right-of-use assets obtained in exchange for lease obligations				$ 56,461
Weighted-average remaining lease term		7 years 2 months 12 days		7 years 2 months 12 days
Weighted-average discount rate		4.50%		4.50%
Minimum [Member]
Commitments [Abstract]
Number of options to renew operating leases | Option		3
Maximum [Member]
Commitments [Abstract]
Number of options to renew operating leases | Option		5

[1] Lease obligations exclude $45.3 million of minimum lease payments for leases signed, but not commenced.