Defined Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019	Feb. 01, 2020
SERP
Defined Benefit Plans
SERP benefit payments	$ 400	$ 400	$ 1,300	$ 1,300
Components of net periodic defined benefit pension cost
Service cost	0	0	0	0
Interest cost	319	481	958	1,443
Expected return on plan assets	0	0	0	0
Net amortization of unrecognized prior service credit	0	0	0	0
Net amortization of actuarial losses	10	15	30	46
Net periodic defined benefit pension cost	329	496	988	1,489
SERP | Other income/expense
Defined Benefit Plans
Gain (loss) as a result of changes in value of the insurance policy investments, included in other income (expense)	(300)	2,000	1,700	5,000
Pension
Components of net periodic defined benefit pension cost
Service cost	809	809	2,339	2,424
Interest cost	327	549	981	1,646
Expected return on plan assets	(48)	(78)	(138)	(233)
Net amortization of unrecognized prior service credit	(17)	(10)	(49)	(29)
Net amortization of actuarial losses	101	112	294	334
Net periodic defined benefit pension cost	1,172	1,382	3,427	4,142
Pension | Foreign Plan
Defined Benefit Plans
Projected benefit obligation	36,400		36,400		$ 34,800
Plan assets at fair value	29,900		29,900		28,900
Components of net periodic defined benefit pension cost
Service cost	809	809	2,339	2,424
Interest cost	8	68	23	203
Expected return on plan assets	(48)	(78)	(138)	(233)
Net amortization of unrecognized prior service credit	(17)	(10)	(49)	(29)
Net amortization of actuarial losses	91	97	264	288
Net periodic defined benefit pension cost	843	$ 886	2,439	$ 2,653
Other assets | SERP
Defined Benefit Plans
Cash surrender values of the insurance policies held in a rabbi trust	68,100		68,100		67,700
Accrued expenses and other long-term liabilities | SERP
Defined Benefit Plans
Projected benefit obligation	51,600		51,600		51,900
Other long-term liabilities | Pension | Foreign Plan
Defined Benefit Plans
Net liability	$ 6,500		$ 6,500		$ 5,900