Note 6 - Retirement and Other Benefit Plans (Details Textual) - USD ($)		3 Months Ended	12 Months Ended
	Dec. 31, 2015	Feb. 01, 2020	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Defined Benefit Plan, Plan Assets, Amount, Ending Balance				$ 368,217,000
Management [Member]
Deferred Compensation Arrangement with Individual, Maximum Percentage of Deferral of Base Salary			50.00%
Deferred Compensation Arrangement with Individual, Maximum Percentage of Deferral of Annual Incentive Compensation			100.00%
Deferred Compensation Arrangement with Individual, Recorded Liability		$ 8,000,000.0	$ 8,000,000.0	7,300,000
Deferred Compensation Plan Assets		8,000,000.0	8,000,000.0	7,300,000
Non-employee Director [Member]
Deferred Compensation Arrangement with Individual, Recorded Liability		1,500,000	$ 1,500,000	$ 2,400,000
Non-employee Director [Member] | Phantom Share Units (PSUs) [Member]
Deferred Compensation Arrangement with Individual, Shares Issued			71,108	70,123
Alternative Investment Fund [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		$ 411,776,000	$ 411,776,000
Long-term Investments [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		97.00%	97.00%
Short-term Investments 1 [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		3.00%	3.00%
Equities [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		70.00%	70.00%
Debt Securities 1 [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage		30.00%	30.00%
Domestic Defined Contribution 401(k) Plan [Member]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent			3.50%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			1.50%
Defined Contribution Plan, Employer Matching Contribution, Percent of First 6% Match			50.00%
Defined Contribution Plan, Employer Matching Contribution, Additional Percentage			2.00%
Defined Contribution Plan, Cost			$ 5,400,000	$ 4,400,000	$ 3,900,000
Canadian Defined Contribution 401(k) Plan [Member]
Defined Contribution Plan, Cost			$ 200,000	200,000	300,000
Canadian Defined Contribution 401(k) Plan [Member] | Minimum [Member]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent			3.00%
Canadian Defined Contribution 401(k) Plan [Member] | Maximum [Member]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent			5.00%
Pension Plan [Member]
Defined Benefit Plan, Benefit Obligation, Ending Balance		$ 388,288,000	$ 388,288,000	342,192,000	356,469,000
Defined Benefit Plan, Actuarial Grading Percentage			0.75%
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Due to Change in Mortality Projection Scales				2,300,000
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		428,186,000	$ 428,186,000	381,450,000	407,081,000
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position, Total		39,894,000	39,894,000	39,258,000
Pension Plan [Member] | Alternative Investment Fund [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		16,300,000	16,300,000	13,200,000
Pension Plan [Member] | Unallocated Insurance Contracts [Member]
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0	0
Pension Plan [Member] | VERP [Member]
Defined Benefit Plan, Recognized Lump Sum Payments and Settlement Charges		19,900,000
Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment		2,700,000
Postretirement Life Insurance [Member]
Defined Benefit Plan, Maximum Insurance Coverage			20,000
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Benefit Obligation, Ending Balance		1,371,000	1,371,000	1,461,000	1,594,000
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		0	0	0	$ 0
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position, Total		(1,371,000)	$ (1,371,000)	(1,461,000)
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan, Years Service Cap	35 years
Defined Benefit Plan, Number of Highest Annual Salary Consecutive Years	5 years
Defined Benefit Plan, Number of Years Before Retirement	10 years
Defined Benefit Plan, Maximum Years of Service			30 years
Defined Benefit Plan, Service Credit Percentage			0.825%
Defined Benefit Plan, Additional Service Credit Percentage			1.425%
Defined Benefit Plan, Benefit Obligation, Ending Balance		379,900,000	$ 379,900,000	335,100,000
Foreign Plan [Member] | Pension Plan [Member]
Defined Benefit Plan, Number of Highest Annual Salary Consecutive Years			5 years
Defined Benefit Plan, Number of Years Before Retirement			10 years
Defined Benefit Plan, Benefit Obligation, Ending Balance		4,300,000	$ 4,300,000	$ 3,800,000
Defined Benefit Plan, Plan Assets, Amount, Ending Balance		$ 4,500,000	$ 4,500,000
Foreign Plan [Member] | Pension Plan [Member] | Equities [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		55.00%	55.00%
Foreign Plan [Member] | Pension Plan [Member] | Bond Funds [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		42.00%	42.00%
Foreign Plan [Member] | Pension Plan [Member] | Money Market Fund [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage		3.00%	3.00%