Debt (Narrative) (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 16, 2020	Jan. 30, 2021	Feb. 01, 2020
Debt Instrument [Line Items]
Credit facility interest rate description		The credit facility bears interest, at our option, at (1) the agent bank’s prime rate as defined in the Credit Agreement plus 1.0%, with the prime rate defined as the greater of (a) the Federal Fund rate plus 0.50% or (b) the interest rate announced from time to time by the agent bank as its “prime rate” or (2) LIBOR plus 1.50% to 2.50%, depending on our achievement of certain performance criteria. If the stated LIBOR rate is less than 0.75%, the LIBOR rate for purposes of calculating the interest rate under the credit facility shall be 0.75%.
Line of credit facility, expiration date		Mar. 27, 2022
Amount outstanding during period		$ 0	$ 0
Maximum amount outstanding during period		8,700	$ 20,000
Outstanding letters of credit		1,200
Line of credit, available borrowing amount		$ 98,800
Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility, exercised	$ 50,000
Maximum [Member]
Debt Instrument [Line Items]
Commitment fee percentage rate		0.30%
Maximum [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility, revolving commitment	100,000
Line of credit swing line sublimit	$ 15,000
Rent expenses	3.00%
Minimum [Member]
Debt Instrument [Line Items]
Commitment fee percentage rate		0.40%
Minimum [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit facility, revolving commitment	$ 50,000
Line of credit swing line sublimit	$ 10,000
Rent expenses	2.50%