Shareholders' Equity - Stock Option Awards - Stock Option Activity (Details) shares in Thousands	9 Months Ended
	Oct. 31, 2020 $ / shares shares
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance outstanding at beginning of period | shares	247
Granted | shares	0
Exercised | shares	0
Forfeited or canceled | shares	(213)
Balance outstanding at end of period | shares	34
Options exercisable | shares	26
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance outstanding at beginning of period, weighted average exercise price | $ / shares	$ 12.44
Granted, weighted average exercise price | $ / shares	0.00
Exercised, weighted average exercise price | $ / shares	0.00
Forfeited or canceled, weighted average exercise price | $ / shares	12.37
Balance outstanding at end of period, weighted average exercise price | $ / shares	12.87
Options exercisable, weighted average exercise price | $ / shares	$ 14.96
2004 Omnibus Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance outstanding at beginning of period | shares	6
Granted | shares	0
Exercised | shares	0
Forfeited or canceled | shares	(3)
Balance outstanding at end of period | shares	3
Options exercisable | shares	3
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Balance outstanding at beginning of period, weighted average exercise price | $ / shares	$ 51.52
Granted, weighted average exercise price | $ / shares	0.00
Exercised, weighted average exercise price | $ / shares	0.00
Forfeited or canceled, weighted average exercise price | $ / shares	48.92
Balance outstanding at end of period, weighted average exercise price | $ / shares	53.49
Options exercisable, weighted average exercise price | $ / shares	$ 53.49