Note 23. Commitments and Contingencies

General Matters

ARRIS leases office, distribution, and warehouse facilities as well as equipment under long-term leases expiring at various dates through 2023. Included in these operating leases are certain amounts related to restructuring activities; these lease payments and related sublease income are included in restructuring accruals on the consolidated balance sheets. Future minimum operating lease payments under non-cancelable leases at December 31, 2017 were as follows (in thousands):


	Operating Leases
2018	$	37,661
2019		31,864
2020		27,288
2021		24,502
2022		20,558
Thereafter		42,768
Less sublease income		(4,674	)

Total minimum lease payments	$	179,967

Total rental expense for all operating leases amounted to approximately $26.4 million, $34.0 million and $26.9 million for the years ended December 31, 2017, 2016 and 2015, respectively.

Additionally, the Company had contractual obligations of approximately $772.1 million under agreements with non-cancelable terms to purchase goods or services over the next year. All contractual obligations outstanding at the end of prior years were satisfied within a 12-month period, and the obligations outstanding as of December 31, 2017 are expected to be satisfied by 2018.

Bank Guarantees

The Company has outstanding bank guarantees, of which certain amounts are collateralized by restricted cash. As of December 31, 2017, the restricted cash associated with the outstanding bank guarantee was $1.5 million which is reflected in Other Assets on the Consolidated Balance Sheets.

Legal Proceedings

The Company accrues a liability for legal contingencies when it believes that it is both probable that a liability has been incurred and that it can reasonably estimate the amount of the loss. The Company reviews these accruals and adjusts them to reflect ongoing negotiations, settlements, rulings, advice of legal counsel and other relevant information. To the extent new information is obtained and the Company’s views on the probable outcomes of claims, suits, assessments, investigations or legal proceedings change, changes in the Company’s accrued liabilities would be recorded in the period in which such determinations are made. Unless noted otherwise, the amount of liability is not probable or the amount cannot be reasonably estimated; and therefore, accruals have not been made.

Due to the nature of the Company’s business, it is subject to patent infringement claims, including current suits against it or one or more of its wholly-owned subsidiaries, or one or more of our customers who may seek indemnification from us, alleging infringement by various Company products and services. The Company believes that it has meritorious defenses to the allegations made in its pending cases and intends to vigorously defend these lawsuits; however, it is currently unable to determine the ultimate outcome of these or similar matters. Accordingly, the Company is currently unable to reasonably estimate the possible loss or range of possible loss for any of the matters identified in Part II, Item 1 “Legal Proceedings”. The results in litigation are unpredictable and an adverse resolution of one or more of such matters not included in the estimate provided, or if losses are higher than what is currently estimated, it could have a material adverse effect on our business, financial position, results of operations or cash flows. In addition, the Company is a defendant in various litigation matters generally arising out of the normal course of business. (See Part I, Item 3 “Legal Proceedings” for additional details).