NATURE OF OPERATIONS AND BASIS OF PRESENTATION (Detail) $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2020	May 03, 2020 USD ($) store	Jun. 10, 2020 store	Feb. 02, 2020 store
Income Tax Contingency [Line Items]
Number of company-operated stores in operation | store		489		491
Government payroll subsidy recognized | $		$ 14.3
Canada Revenue Agency
Income Tax Contingency [Line Items]
Deferred corporate income tax | $		$ 56.8
Minimum
Income Tax Contingency [Line Items]
Period of closure of distribution centers	7 days
Maximum
Income Tax Contingency [Line Items]
Period of closure of distribution centers	14 days
Subsequent Event
Income Tax Contingency [Line Items]
Number of company-operated stores in operation | store			295