14. Commitments and Contingencies

Operating Leases

The Company leases certain facilities under operating lease agreements that expire at various dates through 2025. Some of these arrangements contain renewal options and require the Company to pay taxes, insurance and maintenance costs.

Rent expense under operating leases was $5.5 million, $4.7 million and $4.6 million and for fiscal 2017, 2016 and 2015, respectively. The minimum annual future rentals under the terms of these leases as of December 30, 2017 are as follows (in thousands):

Fiscal Year

2018	$	5,807
2019		4,278
2020		3,539
2021		3,016
2022		2,804
Thereafter		5,416

Total minimum lease payments	$	24,860

Investment Commitment

As of December 30, 2017, the Company had an unfunded commitment to invest up to $10.0 million in a limited partnership. The investment will be accounted for using the equity method and recorded in other assets, net in the Consolidated Balance Sheet when it is funded.

Litigation

Patent Litigation

On January 28, 2014, Cresta Technology Corporation ("Cresta Technology"), a Delaware corporation, filed a lawsuit against the Company (among others) in the United States District Court in the District of Delaware, alleging infringement of three United States Patents (the "Cresta Patents"). Cresta Technology declared bankruptcy in 2016. One of its creditors, DBD Credit Funding LLC ("DBD") and/or CF Crespe LLC (the "Cresta Successors") assumed ownership of the Cresta Patents and has substituted in for Cresta Technology in related proceedings.

The Delaware proceedings are currently stayed. In 2014 and 2015, the Company challenged the validity of two sets of claims in the Cresta Patents at the Patent Trial and Appeal Board (PTAB) of the United States Patent and Trademark Office (USPTO). In each respective proceeding, the PTAB found the reviewed claims to be invalid. The Federal Circuit Court of Appeals affirmed both determinations.

On July 16, 2014, the Company filed a lawsuit against Cresta Technology in the United States District Court in the Northern District of California alleging infringement of six United States Patents. A motion to substitute the Cresta Successors as defendants in lieu of Cresta Technology is pending.

The Company intends to continue to vigorously defend the Delaware proceeding and to continue to pursue its claims against the Cresta Successors and their patents. At this time, the Company cannot predict the outcome of these matters or the resulting financial impact to it, if any.

Other

The Company is involved in various other legal proceedings that have arisen in the normal course of business. While the ultimate results of these matters cannot be predicted with certainty, the Company does not expect them to have a material adverse effect on its Consolidated Financial Statements.