Stock-Based Awards - Stock Options (Details) - Stock Options	3 Months Ended
	Apr. 27, 2019 $ / shares shares
Stock Options, Outstanding [Roll Forward]
Beginning balance (in shares) | shares	583,291
Granted (in shares) | shares	39,276
Options exercised (in shares) | shares	(9,850)
Canceled (in shares) | shares	0
Ending balance (in shares) | shares	612,717
Exercisable options (in shares) | shares	510,220
Stock Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Beginning balance (in dollars per shares) | $ / shares	$ 34.24
Options granted (in dollars per shares) | $ / shares	45.94
Options exercised (in dollars per shares) | $ / shares	10.71
Canceled (in dollars per shares) | $ / shares	0.00
Ending balance (in dollars per shares) | $ / shares	35.37
Weighted average remaining contractual life, shares exercisable (In years) | $ / shares	$ 27.86