COMMITMENTS AND CONTINGENCIES: The Company leases certain of its facilities under operating lease agreements, which expire in various periods through 2028. Future minimum contractually required cash payment obligations under non-cancellable lease agreements as of February 28, 2018 were as follows: Fiscal Years Ending November 30, 2018 (remaining nine months) $ 74,293 2019 88,920 2020 73,030 2021 49,396 2022 37,614 Thereafter 67,436 Total minimum lease payments $ 390,689 During the three months ended February 28, 2018 and 2017 , rent expense was $31,673 and $27,992 , respectively. Sublease income was immaterial for each of the periods presented and is immaterial for the amounts entitled to be received in future periods under non-cancellable sublease arrangements. The Company was contingently liable as of February 28, 2018 under agreements to repurchase repossessed inventory acquired by flooring companies as a result of default on floor plan financing arrangements by the Company's customers. These arrangements are described in Note 9  Accounts Receivable Arrangements and do not have expiration dates. As the Company does not have access to information regarding the amount of inventory purchased from the Company still on hand with the customer at any point in time, the Companys repurchase obligations relating to inventory cannot be reasonably estimated. Losses, if any, would be the difference between the repossession cost and the resale value of the inventory. There have been no repurchases through February 28, 2018 under these agreements and the Company is not aware of any pending customer defaults or repossession obligations. The Company believes that, based on historical experience, the likelihood of a material loss pursuant to these inventory repurchase obligations is remote. From time to time, the Company receives notices from third parties, including customers and suppliers, seeking indemnification, payment of money or other actions in connection with claims made against them. Also, from time to time, the Com