Stock-Based Awards - RSU's and Performance RSU's (Details)	6 Months Ended
	Jul. 28, 2018 $ / shares shares
RSUs
Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding [Roll Forward]
Beginning balance (in shares) | shares	133,896
Granted (in shares) | shares	51,380
Share units vested (in shares) | shares	(4,449)
Forfeited or canceled (in shares) | shares	(6,673)
Ending balance (in shares) | shares	174,154
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Beginning balance (in dollars per shares) | $ / shares	$ 71.81
Granted (in dollars per shares) | $ / shares	103.36
Share units vested (in dollars per shares) | $ / shares	78.74
Forfeited or canceled (in dollars per shares) | $ / shares	70.56
Ending balance (in dollars per shares) | $ / shares	$ 80.99
Performance RSUs
Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding [Roll Forward]
Beginning balance (in shares) | shares	390,327
Granted (in shares) | shares	218,628
Share units vested (in shares) | shares	0
Forfeited or canceled (in shares) | shares	(27,434)
Ending balance (in shares) | shares	581,521
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Beginning balance (in dollars per shares) | $ / shares	$ 80.52
Granted (in dollars per shares) | $ / shares	106.19
Share units vested (in dollars per shares) | $ / shares	0.00
Forfeited or canceled (in dollars per shares) | $ / shares	87.29
Ending balance (in dollars per shares) | $ / shares	$ 89.85