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OVERVIEW AND BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019	Jul. 31, 2019	Aug. 01, 2019
Concentration Risk [Line Items]
Operating lease right-of-use assets	[1]	$ 135,680		$ 135,680		$ 0
Operating lease, liability		$ 161,088		$ 161,088
Accounting Standards Update 2016-02
Concentration Risk [Line Items]
Operating lease right-of-use assets							$ 120,200
Operating lease, liability							$ 142,100
Partner Concentration Risk | Revenue | Partner A
Concentration Risk [Line Items]
Concentration risk percentage		32.00%	23.00%	30.00%	22.00%
Partner Concentration Risk | Revenue | Partner C
Concentration Risk [Line Items]
Concentration risk percentage		14.00%	12.00%	13.00%	12.00%
Partner Concentration Risk | Revenue | Partner D
Concentration Risk [Line Items]
Concentration risk percentage					10.00%
Partner Concentration Risk | Revenue | Partner E
Concentration Risk [Line Items]
Concentration risk percentage			11.00%		11.00%
Partner Concentration Risk | Accounts Receivable | Partner A
Concentration Risk [Line Items]
Concentration risk percentage				28.00%		27.00%
Partner Concentration Risk | Accounts Receivable | Partner B
Concentration Risk [Line Items]
Concentration risk percentage				16.00%
Partner Concentration Risk | Accounts Receivable | Partner C
Concentration Risk [Line Items]
Concentration risk percentage				14.00%		18.00%
[1] During the first quarter of fiscal 2020, we adopted Accounting Standards Update ("ASU") No. 2016-02 using the modified retrospective method and elected the transition option that allowed us not to restate the comparative periods in our condensed consolidated financial statements in the year of adoption. For additional details, refer to Note 1.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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