COMMITMENTS AND CONTINGENCIES Product Warranties The Company warrants its products against defects in materials and workmanship for a period of one year and that product warranty is generally limited to a refund of the original purchase price of the product or a replacement part. The Company estimates warranty costs based on historical warranty claim experience. Warranty returns are recorded as an allowance for sales returns. The allowance for sales returns is reviewed quarterly to verify that it properly reflects the remaining obligations based on the anticipated returns over the balance of the obligation period. The following table presents warranty reserve activities: Year Ended December 30, 2018 December 31, 2017 January 1, 2017 (In thousands) Beginning balance $ 4,445 $ 3,996 $ 4,096 Provisions &amp; prior warranty estimates 5,325 2,947 5,261 Settlements made (5,788 ) (2,498 ) (5,361 ) Ending balance $ 3,982 $ 4,445 $ 3,996 Operating Lease Commitments The Company leases certain facilities and equipment under non-cancelable operating lease agreements that expire at various dates through fiscal 2026 . Some leases include renewal options, which would permit extensions of the expiration dates at rates approximating fair market rental values. As of December 30, 2018 , future minimum lease payments under non-cancelable operating leases were as follows: Fiscal Year (In thousands) 2019 $ 29,315 2020 12,860 2021 8,176 2022 6,241 2023 2,476 Thereafter 3,808 Total $ 62,876 Restructuring accrual balances related to operating facility leases were $14.3 million and $11.5 million as of December 30, 2018 and December 31, 2017 , respectively. Contractual Obligations The Company has entered into agreements with certain vendors that include "take or pay" terms. Take or pay terms obligate the Company to purchase a minimum required amount or services or make specified payments in lieu of such purchase. The Company may not be able to consume minimum commitments under these take or pay terms, requiring payments to vendors, which may have a material adverse impact on the Company's Consolidated Statements of Operations. Litigation and Asserted Claims The Company is currently involved in various legal proceedings, claims, and disputes arising in the ordinary course of business, including intellectual property claims and other matters. For many legal matters, particularly those in early stages, the Company cannot reasonably estimate the possible loss (or range of loss), if any. The Company records an accrual for legal matters at the time or times it determines that a loss is both probable and reasonably estimable. Amounts accrued as of December 30, 2018 were not material. Regarding matters for which no accrual has been made (including the potential for losses in excess of amounts accrued), the Company currently believes, based on its own investigations, that any losses (or ranges of losses) that are reasonably possible and estimable will not, in the aggregate, have a material adverse effect on its financial position, results of operations, or cash flows. However, the ultimate outcome of legal proceedings involves judgments, estimates, and inherent uncertainties and cannot be predicted with certainty. Should the ultimate outcome of any legal matter be unfavorable, the Company's business, financial condition, results of operations, or cash flows could be materially and adversely affected. The Company may also incur substantial legal fees, which are expensed as incurred, in defending against legal claims. Indemnification Obligations The Company is a party to a variety of agreements pursuant to which it may be obligated to indemnify other parties to such agreements with respect to certain matters. Typically, these obligations arise in the context of contracts that the Company has entered into, under which the Company customarily agrees to hold the other party harmless against losses arising from a breach of representations and covenants or terms and conditions related to such matters as the sale and/or delivery of its products, title to assets sold, certain intellectual property claims, defective products, specified environmental matters and certain income taxes. With respect to the sale of a manufacturing facility or subsidiary business, such indemnification may also cover tax matters and the Company's management of the facility or business prior to the sale. In the foregoing circumstances, payment by the Company is customarily conditioned on the other party making a claim pursuant to the procedures specified in the particular contract, which procedures typically allow the Company to challenge the other partys claims and vigorously defend itself and the other party against related third-party claims. Further, the Company's obligations under these agreements may be limited in terms of time, amount or the scope of its responsibility and in some instances, the Company may have recourse against third parties for certain payments made under these agreements. It is not possible to predict the maximum potential amount of future payments under these agreements due to the conditional nature of the Company's obligations and the unique facts and circumstances involved in each particular agreement. Historically, payments the Company has made under these agreements have not had a material effect on the Companys business, financial condition or results of operations. As of December 30, 2018 , management believes that if the Company were to incur a loss (in excess of amounts already recognized) in any of these matters, such loss would not have a material effect on its business, financial condition, cash flows or results of operations, though there can be no assurance in this regard.