Summary of Significant Accounting Policies - Changes in Carrying Value of Intangible Assets (Parenthetical) (Details) - Other Intangible Assets	12 Months Ended
Jan. 28, 2017
Intangible Assets By Major Class [Line Items]
Intangible assets, estimated useful life	16 years
Weighted average amortization period remaining for other intangibles	1 year 3 months 18 days

Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration