Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Name:	us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands		12 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Mar. 01, 2020	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Subsequent Event [Line Items]
Proceeds from borrowings - revolving credit facility		$ 2,388,766	$ 2,303,932	$ 1,939,774
Subsequent Event
Subsequent Event [Line Items]
Proceeds from borrowings - revolving credit facility	$ 500,000