Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Operating Loss Carryforwards [Line Items]
Federal income tax rate	21.00%	33.70%	35.00%	35.00%
Reduce tax expense		$ 0.0
Estimated reduction amount of deferred tax assets		18.8
Net operating loss carryforwards	$ 323.2
Net operating loss carryforwards expire period	fiscal years 2019 through 2036
Increase (decrease) in valuation allowance	$ (4.3)	37.1
Unrecognized tax benefits	0.0	2.3	$ 0.4
Tax deductions	2.0
Settlements	0.3
Unrecognized tax benefits accrued interest	0.0	0.1
Unrecognized tax benefits accrued penalties	0.0	$ 0.1
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 118.0
Net operating loss carryforwards expire period	expire in 2036
Federal income tax credits	$ 5.3
Federal income tax credits expire period	expire in 2036