Share-Based Compensation Plans - Stock Options (Details) - Stock Options $ / shares in Units, $ in Millions	9 Months Ended
	Oct. 29, 2016 USD ($) $ / shares shares
Number of Shares
Outstanding at the beginning of the period (in shares) | shares	681,117
Granted (in shares) | shares	593,509
Forfeited (in shares) | shares	(3,051)
Expired (in shares) | shares	(1,525)
Outstanding at the end of the period (in shares) | shares	1,270,050
Exercisable at the end of the period (in shares) | shares	450,630
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 39.65
Granted (in dollars per share)	17.43
Forfeited (in dollars per share)	48.31
Expired (in dollars per share)	48.31
Outstanding at the end of the period (in dollars per share)	29.23
Exercisable at the end of the period (in dollars per share)	36.25
Additional disclosures
Weighted-average grant date fair value of stock options granted (in dollars per share)	$ 5.18
Assumptions used to value stock options
Risk-free interest rate (as a percent)	1.22%
Expected lives	5 years
Dividend yield (as a percent)	4.13%
Expected volatility (as a percent)	47.95%
Unrecognized compensation cost
Unrecognized compensation cost related to non-vested stock options | $	$ 4.5
Compensation recognition period	1 year 4 months 24 days