Commitments and Contingencies - Additional Information (Details) $ in Thousands				3 Months Ended			9 Months Ended		12 Months Ended
	Nov. 29, 2017 USD ($)	Mar. 31, 2016 USD ($)	Feb. 13, 2015 USD ($)	Oct. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)	Apr. 30, 2016 USD ($)	Oct. 31, 2017 USD ($)	Oct. 31, 2016 USD ($)	Jan. 31, 2017 USD ($) Floor	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)
Commitments And Contingencies [Line Items]
Letters of credit facility				$ 26,500			$ 26,500		$ 26,800
Rent expense				8,100	$ 4,700		20,300	$ 13,300
Sublease income				1,900	1,800		5,600	5,000
Amortization of intangible assets					$ 500		$ 500	$ 2,900
Settlement Agreement
Commitments And Contingencies [Line Items]
Amortization of intangible assets		$ 100
Date of settlement agreement							Mar. 31, 2016
Jury award amount		4,900
Reversal of Previous Settlement Accruals and Interest		5,600
Income (Loss) Related to Litigation Settlement						$ 1,700
Open Text S.A.
Commitments And Contingencies [Line Items]
Damage awarded			$ 4,900
Accrual in relation to the jury award											$ 4,900
Litigation expense											$ 3,900
Weighted Average Useful Life											14 months
Accrued additional liability related to the interest on the jury award										$ 700
Open Text S.A. | Settlement Agreement
Commitments And Contingencies [Line Items]
Settlement amount paid		$ 3,750
Open Text S.A. | General and Administrative Expense
Commitments And Contingencies [Line Items]
Amortization of intangible assets										$ 900
San Francisco Building
Commitments And Contingencies [Line Items]
Number of floors for headquarters | Floor									1
Subleases Expire in Fiscal 2018 and 2021
Commitments And Contingencies [Line Items]
Non-cancellable sublease proceeds for the year ending January 31, 2018				1,800			$ 1,800
Non-cancellable sublease proceeds for the year ending January 31, 2019				5,800			5,800
Non-cancellable sublease proceeds for the year ending January 31, 2020				1,900			1,900
Non-cancellable sublease proceeds for the year ending January 31, 2021				$ 1,800			$ 1,800
Minimum
Commitments And Contingencies [Line Items]
Operating lease expiration year							2018
Capital lease term							3 years
Term of sublease arrangement							19 months
Non-cancellable sublease expiration year							2018
Maximum
Commitments And Contingencies [Line Items]
Operating lease expiration year							2029
Capital lease term							4 years
Term of sublease arrangement							49 months
Non-cancellable sublease expiration year							2021
November 2017 Facility | Subsequent Event
Commitments And Contingencies [Line Items]
Line of credit facility, agreement date	Nov. 29, 2017
November 2017 Facility | Subsequent Event | Letters of Credit
Commitments And Contingencies [Line Items]
Letters of credit facility	$ 26,000