Commitments and Contingencies Operating Lease Commitments The Company leases office, distribution and retail facilities, and automobiles, under operating lease agreements which continue in effect through January 2029 . Some of the leases contain renewal options of anywhere from 1 to 15 years. Since the terms of these arrangements meet the accounting definition of operating lease arrangements, the aggregate sum of future minimum lease payments are not reflected in the consolidated balance sheets . In June 2017, the Company entered into an addendum to the original lease agreement relating to its warehouse and distribution center located in Moreno Valley, California. Pursuant to the addendum, the Company exercised its option to lease additional square footage and extended the expiration date of the lease to June 2028. Future minimum commitments under existing operating lease agreements at March 31, 2018 are as follows: Years Ending March 31, Future Minimum Lease Commitments 2019 $ 54,836 2020 52,256 2021 44,468 2022 38,435 2023 34,341 Thereafter 112,209 Total $ 336,545 The following schedule shows the composition of total rent expense: Years Ended March 31, 2018 2017 2016 Minimum rentals $ 59,531 $ 63,050 $ 61,227 Contingent rentals 15,924 15,281 16,067 Total $ 75,455 $ 78,331 $ 77,294 Purchase Obligations Product . The Company had $455,228 of outstanding purchase orders or other obligations with its manufacturers at March 31, 2018 . The Company has an extended design and manufacturing process, which requires it to forecast production volumes and estimate inventory requirements many months before consumers make a decision to purchase its products. The Company generally orders product four to nine months in advance of the anticipated shipment dates based primarily on orders received from wholesale customers and through the DTC reportable operating segment. Accordingly, the aggregate amount reflects purchase commitments for products that the Company reasonably expects to fulfill in the ordinary course of business. How