Shareholders' Equity - Non-Vested Restricted Stock Activity (Details) - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
May 02, 2020	Oct. 31, 2020
Market-Based Units [Member]
Summary of changes in Company's non-vested restricted stock during period [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period	129	129
Granted, shares		0
Vested, shares		0
Forfeited, shares		(69)
Non-vested restricted stock shares outstanding at end of period		60
Summary of changes in Company's non-vested restricted stock during period, weighted average grant date fair value [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period, weighted average grant date fair value per share	$ 6.49	$ 6.49
Granted, weighted average grant date fair value per share		0.00
Vested, weighted average grant date fair value per share		0.00
Forfeited, weighted average grant date fair value per share		9.05
Non-vested restricted stock shares outstanding at end of period, weighted average grant date fair value per share		$ 3.52
Time-Based Units [Member]
Summary of changes in Company's non-vested restricted stock during period [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period	435	435
Granted, shares		469
Vested, shares		(100)
Forfeited, shares		(67)
Non-vested restricted stock shares outstanding at end of period		737
Summary of changes in Company's non-vested restricted stock during period, weighted average grant date fair value [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period, weighted average grant date fair value per share	$ 5.96	$ 5.96
Granted, weighted average grant date fair value per share		2.33
Vested, weighted average grant date fair value per share		4.37
Forfeited, weighted average grant date fair value per share		4.22
Non-vested restricted stock shares outstanding at end of period, weighted average grant date fair value per share		$ 4.03
Performance-Based Units [Member]
Summary of changes in Company's non-vested restricted stock during period [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period	0	0
Granted, shares	146	146
Vested, shares		0
Forfeited, shares		0
Non-vested restricted stock shares outstanding at end of period		146
Summary of changes in Company's non-vested restricted stock during period, weighted average grant date fair value [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period, weighted average grant date fair value per share	$ 0.00	$ 0.00
Granted, weighted average grant date fair value per share		1.69
Vested, weighted average grant date fair value per share		0.00
Forfeited, weighted average grant date fair value per share		0.00
Non-vested restricted stock shares outstanding at end of period, weighted average grant date fair value per share		$ 1.69
Total Restricted Stock Units (RSUs) [Member]
Summary of changes in Company's non-vested restricted stock during period [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period	564	564
Granted, shares		615
Vested, shares		(100)
Forfeited, shares		(136)
Non-vested restricted stock shares outstanding at end of period		943
Summary of changes in Company's non-vested restricted stock during period, weighted average grant date fair value [Roll Forward]
Non-vested restricted stock shares outstanding at beginning of period, weighted average grant date fair value per share	$ 6.08	$ 6.08
Granted, weighted average grant date fair value per share		2.18
Vested, weighted average grant date fair value per share		4.37
Forfeited, weighted average grant date fair value per share		6.70
Non-vested restricted stock shares outstanding at end of period, weighted average grant date fair value per share		$ 3.64

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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