Leases (Details) - USD ($) $ in Thousands	Feb. 03, 2019	Aug. 03, 2019	May 04, 2019	Feb. 02, 2019	Aug. 04, 2018
Practical Expedients [Abstract]
Practical expedients package	true
Practical expedients hindsight	false
Land easement practical expedient	true
Single lease components	true
Assets
Other current assets		$ 63,882		$ 70,712	$ 87,491
Operating lease right-of-use assets		918,541
Intangible assets, net		155,309		163,901	165,881
Current Liabilities:
Accrued expenses and other current liabilities		289,810		282,029	313,319
Current portion of operating lease liabilities		185,800
Noncurrent Liabilities:
Noncurrent portion operating lease liabilities		763,865
Deferred taxes, net and other liabilities		77,961		125,022	146,484
Equity:
Accumulated deficit		(445,392)		(468,048)	$ (470,377)
Adoption Of ASC 842:
Operating lease liabilities		$ 949,665
Cumulative adjustment upon ASC 842 adoption (see Note 12)
Assets
Other current assets	$ 49,958
Operating lease right-of-use assets	896,270
Intangible assets, net	157,219
Current Liabilities:
Accrued expenses and other current liabilities	281,878
Current portion of operating lease liabilities	183,726
Noncurrent Liabilities:
Noncurrent portion operating lease liabilities	745,116
Deferred taxes, net and other liabilities	65,567
Equity:
Accumulated deficit	(468,450)
Adoption Of ASC 842:
Cumulative effect of initially applying ASC 842			$ (402)
Reported Balance | Cumulative adjustment upon ASC 842 adoption (see Note 12)
Assets
Other current assets				70,712
Intangible assets, net				163,901
Current Liabilities:
Accrued expenses and other current liabilities				282,029
Noncurrent Liabilities:
Deferred taxes, net and other liabilities				125,022
Equity:
Accumulated deficit				$ (468,048)
Impact of Adoption | Cumulative adjustment upon ASC 842 adoption (see Note 12)
Assets
Other current assets	(20,754)
Operating lease right-of-use assets	896,270
Intangible assets, net	(6,682)
Current Liabilities:
Accrued expenses and other current liabilities	(151)
Current portion of operating lease liabilities	183,726
Noncurrent Liabilities:
Noncurrent portion operating lease liabilities	745,116
Deferred taxes, net and other liabilities	(59,455)
Equity:
Accumulated deficit	(402)
Adoption Of ASC 842:
Operating lease liabilities	$ 928,800