Table of Contents differentiated services to our international clients. Expansion into international markets may require significant resources and management's attention and will subject us to new regulatory, economic, and political risks. There can be no assurance that our products or services will be accepted in any particular international market or that our international expansion efforts will be successful. The results of our operations and our growth rate could be adversely affected by a variety of factors arising out of international commerce, some of which are beyond our control, including currency rate fluctuations, foreign laws and regulatory requirements, trade protection measures, increased data privacy and consumer protection regulations, difficulty in staffing and managing widespread operations, restrictions on the import and export of technologies, political and economic conditions in foreign countries, and reduced protection for intellectual property rights. As we continue to develop and expand our products and services, we may become increasingly subject to infringement claims from third parties such as non-practicing entities, software providers, and suppliers of data. Likewise, if we are unable to maintain adequate controls over how third-party software and data are used, we may be subject to claims of infringement. Any claims, whether with or without merit, could: Our success depends, in part, upon our intellectual property rights. We rely primarily on a combination of patents, copyrights, trade secrets, and trademark laws and nondisclosure and other contractual restrictions on copying, distribution and creation of derivative products to protect our proprietary technology and information. This protection is limited, and our intellectual property could be used by others without our consent. In addition, patents may not be issued with respect to our pending or future patent applications, and our patents may not be upheld as valid or may not prevent the development of competitive products. Any infringement, disclosure, loss, invalidity of, or failure to protect our intellectual property could negatively impact our competitive position, and ultimately, our business. Moreover, litigation may be necessary to enforce or protect our intellectual property rights, to protect our trade secrets, or to determine the validity and scope of the proprietary rights of others. Such litigation could be time- consuming, result in substantial costs and diversion of resources and could harm our business, financial condition, results of operations, and cash flows. As of December 31, 2020, our total debt was approximately $1.9 billion, and we had unused commitments of approximately $450.0 million under our Revolving Facility. Subject to the limitations contained in the Credit Agreement governing our credit facilities and our other debt instruments, we may incur additional debt from time to time to finance working capital, capital expenditures, investments or acquisitions, or for other general corporate purposes. If we do so, the risks related to our level of debt could increase. Specifically, our level of debt could have important consequences to us, including increasing our vulnerability to adverse economic and industry conditions and compromising our flexibility to capitalize our business opportunities and to plan for, or react to, competitive pressures and changes in our business or market conditions. The Credit Agreement governing our credit facilities imposes operating and financial restrictions on our activities. These restrictions include the financial covenants in our credit facilities, which require ongoing compliance with certain financial tests and ratios, including a minimum interest coverage ratio and maximum leverage ratio, and could limit or prohibit our ability to, among other things: Our level of indebtedness could adversely affect our financial condition and prevent us from complying with our covenants and obligations under our outstanding debt instruments. Risks Related to Our Indebtedness We rely upon intellectual property rights to protect our, proprietary technology and information. Risks Related to Intellectual Property We could infringe on the proprietary rights of others. • be expensive and time-consuming to defend; • cause us to cease making, licensing or using applications that incorporate the challenged intellectual property; • require us to redesign our applications, if feasible; • divert management's attention and resources; • require us to enter into royalty or licensing agreements in order to obtain the right to use necessary technologies; and • subject us to significant damages, penalties, fines, and costs associated with an adverse judgment or settlement. • create, incur or assume additional debt; • create, incur or assume certain liens; • redeem and/or prepay certain subordinated debt we might issue in the future; 22