Share-Based Compensation Plans - Deferred Stock Units, Performance Units and Restricted Stock (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Aug. 04, 2018 USD ($) $ / shares shares
Deferred stock units
Additional information
Shares relinquished for tax withholding	224,497
Unrecognized compensation cost
Unrecognized compensation cost, non-vested awards | $	$ 28.6
Compensation recognition period, non-vested awards	1 year 9 months 18 days
Time-Based DSUs
Awards
Non-Vested at the beginning of the period (in shares)	1,014,689
Granted (in shares)	485,715
Vested (in shares)	(497,676)
Forfeited (in shares)	(61,799)
Non-Vested at the end of the period (in shares)	940,929
Weighted-Average Grant-Date Fair Value
Non-Vested at the beginning of the period (in dollars per share) | $ / shares	$ 18.13
Granted (in dollars per share) | $ / shares	28.42
Vested (in dollars per share) | $ / shares	21.14
Forfeited (in dollars per share) | $ / shares	19.04
Non-Vested at the end of the period (in dollars per share) | $ / shares	$ 21.79
Performance-Based DSUs
Awards
Non-Vested at the beginning of the period (in shares)	993,631
Granted (in shares)	242,509
Vested (in shares)	(131,074)
Forfeited (in shares)	(90,604)
Non-Vested at the end of the period (in shares)	1,014,462
Weighted-Average Grant-Date Fair Value
Non-Vested at the beginning of the period (in dollars per share) | $ / shares	$ 19.55
Granted (in dollars per share) | $ / shares	28.54
Vested (in dollars per share) | $ / shares	23.45
Forfeited (in dollars per share) | $ / shares	47.46
Non-Vested at the end of the period (in dollars per share) | $ / shares	$ 18.70