Note 6 - Retirement and Other Benefit Plans - Changes in Benefit Obligations (Details) - USD ($) $ in Thousands	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Pension Plan [Member]
Benefit obligation	$ 342,192	$ 356,469
Service cost	7,219	8,995	$ 9,705
Interest cost	14,811	14,236	14,948
Plan participants’ contribution	9	10
Plan amendments	93	254
Actuarial loss (gain)	58,278	(21,541)
Benefits paid	(14,399)	(14,352)
Settlements	(20,263)	(3,656)
Contractual termination benefits	482
Curtailments	(90)	0
Foreign exchange rate changes	(44)	(230)
Acquisitions	0	2,007
Benefit obligation	388,288	342,192	356,469
Other Postretirement Benefits Plan [Member]
Benefit obligation	1,461	1,594
Service cost	0	0	0
Interest cost	60	59	68
Plan participants’ contribution	6	6
Plan amendments	0	0
Actuarial loss (gain)	(39)	(22)
Benefits paid	(117)	(176)
Settlements	0	0
Curtailments	0	0
Foreign exchange rate changes	0	0
Acquisitions	0	0
Benefit obligation	$ 1,371	$ 1,461	$ 1,594

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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Amount of increase in benefit obligation of defined benefit plan from business combination.

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Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees.

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan.

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement.

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Amount of increase in benefit obligation for benefits provided to employees payable from defined benefit plan or payable upon retirement.

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