Commitments and Contingencies	3 Months Ended
Apr. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Operating Leases As of April 30, 2019, we have various non-cancelable operating lease commitments for office facilities which as a result of the adoption of ASC 842, have been recorded as operating lease liabilities on our condensed consolidated balance sheet. Refer to Note 8—Leases for additional information regarding lease commitments. Convertible Notes The repayment of our Notes with an aggregate principal amount of $575.0 million is due on April 15, 2023. Refer to Note 6 for further information regarding our Notes. Letters of Credit In connection with a lease executed in January 2019, we issued a letter of credit of $0.5 million. As of January 31, 2019 and April 30, 2019, we had outstanding letters of credit in the aggregate amount of $10.8 million and $11.3 million, in connection with our facility leases. The letters of credit are collateralized by restricted cash and mature on various dates through August 2029. Legal Matters From time to time, we have become involved in claims and other legal matters arising in the normal course of business. We investigate these claims as they arise. Although claims are inherently unpredictable, we currently are not aware of any matters that we expect to have a material adverse effect on our business, financial position, results of operations or cash flows. Accordingly, we have not recorded any loss contingency on our condensed consolidated balance sheet as of April 30, 2019. Indemnification Our arrangements generally include certain provisions for indemnifying customers against liabilities if our products or services infringe a third party’s intellectual property rights. Other guarantees or indemnification arrangements include guarantees of product and service performance and standby letters of credit for lease facilities. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, we have not incurred any material costs as a result of such obligations and have not accrued any liabilities related to such obligations in the condensed consolidated financial statements. In addition, we indemnify our officers, directors and certain key employees while they are serving in good faith in their respective capacities. To date, there have been no claims under any indemnification provisions.

Commitments and Contingencies

Operating Leases

As of April 30, 2019, we have various non-cancelable operating lease commitments for office facilities which as a result of the adoption of ASC 842, have been recorded as operating lease liabilities on our condensed consolidated balance sheet. Refer to Note 8—Leases for additional information regarding lease commitments.

Convertible Notes

The repayment of our Notes with an aggregate principal amount of $575.0 million is due on April 15, 2023. Refer to Note 6 for further information regarding our Notes.

Letters of Credit

In connection with a lease executed in January 2019, we issued a letter of credit of $0.5 million. As of January 31, 2019 and April 30, 2019, we had outstanding letters of credit in the aggregate amount of $10.8 million and $11.3 million, in connection with our facility leases. The letters of credit are collateralized by restricted cash and mature on various dates through August 2029.

Legal Matters

From time to time, we have become involved in claims and other legal matters arising in the normal course of business. We investigate these claims as they arise. Although claims are inherently unpredictable, we currently are not aware of any matters that we expect to have a material adverse effect on our business, financial position, results of operations or cash flows. Accordingly, we have not recorded any loss contingency on our condensed consolidated balance sheet as of April 30, 2019.

Indemnification

Our arrangements generally include certain provisions for indemnifying customers against liabilities if our products or services infringe a third party’s intellectual property rights. Other guarantees or indemnification arrangements include guarantees of product and service performance and standby letters of credit for lease facilities. It is not possible to determine the maximum potential amount under these indemnification obligations due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, we have not incurred any material costs as a result of such obligations and have not accrued any liabilities related to such obligations in the condensed consolidated financial statements. In addition, we indemnify our officers, directors and certain key employees while they are serving in good faith in their respective capacities. To date, there have been no claims under any indemnification provisions.