RELATED PARTY TRANSACTIONS (Details) $ in Thousands	12 Months Ended
	Feb. 03, 2018 USD ($) director	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)
Related Party Transactions
Long-term debt	$ 2,726,664	$ 2,754,312
The Sponsors
Related Party Transactions
Percentage owned by related party	40.00%
The Blackstone Group | Term loan credit facility
Related Party Transactions
Long-term debt	$ 99,800
The Blackstone Group | Store Inventory Count Services | Selling, General and Administrative Expenses
Related Party Transactions
Expenses recognized	6,300	6,000	$ 5,900
The Blackstone Group | Lease Services | Cost of Sales and Occupancy Expense
Related Party Transactions
Expenses recognized	7,200	5,200	3,500
The Blackstone Group | Transportation services | Cost of Sales and Occupancy Expense
Related Party Transactions
Expenses recognized	$ 1,500	$ 1,100	$ 1,100
Bain Capital or The Blackstone Group
Related Party Transactions
Number of directors | director	3