Fair Value Measurements - Financial Instruments (Details) - USD ($) $ in Thousands	Aug. 04, 2018	Feb. 03, 2018	Jul. 29, 2017
Fair Value of Financial Instruments
Long-term debt, including current portion	$ 1,216,377	$ 1,396,808	$ 1,541,005
Deferred financing costs	7,900	14,900	19,000
Term Loan and Senior Notes
Fair Value of Financial Instruments
Long-term debt, including current portion	1,111,877	1,396,808	1,541,005
Term Loan and Senior Notes \| Level 1 and Level 2
Fair Value of Financial Instruments
Term Loan and Senior Notes, Estimated Fair Value	$ 1,133,454	$ 1,407,449	$ 1,465,502

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: 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_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant