Debt (Unsecured Senior Notes, Net of Unamortized Discounts and Issuance Costs) (Details) - USD ($) $ in Thousands	Jan. 28, 2017	Jan. 30, 2016
Debt Instrument [Line Items]
Long-term debt	$ 396,493	$ 396,025
6.38% Series A Senior Notes due 2018 [Member]
Debt Instrument [Line Items]
Long-term debt	84,939	84,906
6.53% Series B Senior Notes due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	64,902	64,882
3.375% Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 246,652	$ 246,237

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_LongTermDebtNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant