Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010	Jan. 31, 2009
Income Taxes [Line Items]
Tax benefits recognized as contributed capital	$ 400,000	$ 15,600,000	$ 8,000,000
Approved and repatriated from Canadian subsidiaries			91,700,000
Unremitted earnings of Canadian subsidiaries	72,000,000	57,100,000
Unrecognized tax benefits	31,578,000	31,108,000	31,649,000	41,080,000
Unrecognized tax benefits that would affect effective income tax rate if recognized	22,800,000	22,700,000
Accrued interest and penalties related to unrecognized tax benefits	7,900,000	7,600,000
Provision for income taxes related to the reversal of accrued interest and penalties			3,300,000
Increased decreased in unrecognized tax benefits	500,000	(500,000)
Unrecognized tax benefits decrease expected to be recognized with in the next twelve months	(2,900,000)
Foreign tax credit carryovers	22,300,000	25,500,000
Foreign tax credit carryovers expiration date	2019
Deferred tax asset related to Kansas tax credit carryforwards	6,100,000
Capital losses carryback period		3 years
Decreased valuation allowance related to tax credit carryforward		5,000,000
Deferred tax asset related to Kansas tax credit minimum carryforwards years	10 years
Capital losses carryforward period	16 years	5 years
Deferred tax asset related to Kansas tax credit carryforwards expiration period begins	2018
Deferred tax assets related to investment securities	$ 18,440,000	$ 20,381,000