Commitments and Contingencies - Additional Information (Details)		1 Months Ended			3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 13, 2015 USD ($)	Nov. 30, 2015 USD ($) Floor	Apr. 30, 2015 Floor	Mar. 31, 2015 Floor	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Oct. 31, 2015 USD ($)	Oct. 31, 2014 USD ($)	Jan. 31, 2015 USD ($)
Commitments And Contingencies [Line Items]
Letters of credit facility					$ 27,700,000		$ 27,700,000		$ 27,000,000
Letters of credit, maturity date							Dec. 01, 2018
Capital lease term							3 years
Rent expense					6,700,000	$ 1,500,000	$ 16,000,000	$ 4,500,000
Sublease income					0	448,000	294,000	1,300,000
Asset retirement obligations					144,000		144,000		135,000
Amortization of intangible assets					1,500,000	1,000,000	4,100,000	2,500,000
Accrued additional liability related to the interest on the legal verdict					614,000	0	$ 614,000	0
Open Text S.A.
Commitments And Contingencies [Line Items]
Damage awarded	$ 4,900,000
Accrual for settlement payable									4,900,000
Litigation settlement expense									3,900,000
Estimated useful life							14 months
Open Text S.A. | General And Administrative Expense
Commitments And Contingencies [Line Items]
Amortization of intangible assets					223,000	$ 0	$ 632,000	$ 0
Subsequent Event
Commitments And Contingencies [Line Items]
Contingent rent payments		$ 1,500,000
Subleases Expires in Fiscal 2018
Commitments And Contingencies [Line Items]
Number of floors for new headquarters | Floor				3
Term of sublease arrangement				18 months
Non-cancellable sublease expiration year							2018
Subleases Expires in Fiscal 2018 | Subsequent Event
Commitments And Contingencies [Line Items]
Number of floors for new headquarters | Floor		1
Term of sublease arrangement		18 months
Non-cancellable sublease proceeds		$ 2,500,000
Non-cancellable sublease expiration year		2018
Subleases Expire In Fiscal Two Thousand Eighteen And Two Thousand Nineteen
Commitments And Contingencies [Line Items]
Non-cancellable sublease proceeds					12,200,000		$ 12,200,000
Contingent rent payments							$ 4,800,000
Subleases Expires in Fiscal 2019
Commitments And Contingencies [Line Items]
Number of floors for new headquarters | Floor			3
Term of sublease arrangement			36 months
Non-cancellable sublease expiration year							2019
Minimum
Commitments And Contingencies [Line Items]
Operating lease expiration year							2016
Maximum
Commitments And Contingencies [Line Items]
Operating lease expiration year							2029
Securities Pledged as Collateral
Commitments And Contingencies [Line Items]
Certificate of deposit held as collateral for letter of credit					$ 27,700,000		$ 27,700,000		$ 2,000,000