Goodwill and other intangible assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 29, 2016	Jan. 30, 2015	Jan. 31, 2014
Goodwill and other intangible assets
Goodwill	$ 4,338,589	$ 4,338,589
Other intangible assets:
Leasehold interests, gross amount	4,379	18,218
Leasehold interests, accumulated amortization	3,085	16,048
Leasehold interests, net	1,294	2,170
Trade names and trademarks	1,199,700	1,199,700
Total other intangible assets, gross	1,204,079	1,217,918
Total other intangible assets, accumulated amortization	3,085	16,048
Total other intangible assets, net	1,200,994	1,201,870
Goodwill and other intangible assets
Amortization expense	900	$ 5,800	$ 11,900
Estimated aggregate amortization expense
2016	300
2017	200
2018	200
2019	200
2020	$ 100
Minimum
Goodwill and other intangible assets
Leasehold interests, remaining life	1 year	1 year
Maximum
Goodwill and other intangible assets
Leasehold interests, remaining life	7 years	8 years