10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2015

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 __________________________________________

Commission file number 1-10427

ROBERT HALF INTERNATIONAL INC.

(Exact name of registrant as specified in its charter)

DELAWARE	94-1648752
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
2884 Sand Hill Road, Menlo Park, California	94025
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code:  (650) 234-6000

 __________________________________________

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of each exchange on which registered
Common Stock, Par Value $.001 per Share	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None 

__________________________________________

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes   x    No  ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. (Check one):

Large accelerated filer  x    Accelerated filer  ¨    Non-accelerated filer  ¨    Smaller reporting company  ¨

Indicate by check mark whether the registrant is a shell company. ¨  Yes    x  No

As of June 30, 2015, the aggregate market value of the Common Stock held by non-affiliates of the registrant was approximately $7,212,071,210 based on the closing sale price on that date. This amount excludes the market value of 4,552,507 shares of Common Stock directly or indirectly held by registrant’s directors and officers and their affiliates.

As of January 31, 2016, there were 131,156,828 outstanding shares of the registrant’s Common Stock.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s Proxy Statement to be mailed to stockholders in connection with the registrant’s annual meeting of stockholders, scheduled to be held in May 2016, are incorporated by reference in Part III of this report. Except as expressly incorporated by reference, the registrant’s Proxy Statement shall not be deemed to be part of this report.

PART I

Item 1. Business

Robert Half International Inc. (the “Company”) provides specialized staffing and risk consulting services through such divisions as Accountemps^®, Robert Half^® Finance & Accounting, OfficeTeam^®, Robert Half^® Technology, Robert Half^® Management Resources, Robert Half^® Legal, The Creative Group^®, and Protiviti^®. The Company, through its Accountemps, Robert Half Finance & Accounting, and Robert Half Management Resources divisions, is the world’s largest specialized provider of temporary, full-time, and project professionals in the fields of accounting and finance. OfficeTeam specializes in highly skilled temporary administrative support personnel. Robert Half Technology provides information technology professionals. Robert Half Legal provides temporary, project, and full-time staffing of attorneys and specialized support personnel within law firms and corporate legal departments. The Creative Group provides project staffing in the interactive media, design, and marketing fields. Protiviti, which began operations in 2002, is a global business consulting and internal audit firm. Protiviti, which primarily employs professionals specializing in risk, advisory and transactional services, is a wholly owned subsidiary of the Company.

The Company’s business was originally founded in 1948. Prior to 1986, the Company was primarily a franchisor, under the names Accountemps and Robert Half (now called Robert Half Finance & Accounting), of offices providing temporary and full-time professionals in the fields of accounting and finance. Beginning in 1986, the Company and its current management embarked on a strategy of acquiring franchised locations. All of the franchises have been acquired. The Company believes that direct ownership of offices allows it to better monitor and protect the image of its tradenames, promotes a more consistent and higher level of quality and service throughout its network of offices and improves profitability by centralizing many of its administrative functions. Since 1986, the Company has significantly expanded operations at many of the acquired locations, opened many new locations and acquired other local or regional providers of specialized temporary service personnel. The Company has also expanded the scope of its services by launching the new product lines OfficeTeam, Robert Half Technology, Robert Half Management Resources, Robert Half Legal and The Creative Group.

In 2002, the Company hired more than 700 professionals who had been affiliated with the internal audit and business and technology risk consulting practice of Arthur Andersen LLP, including more than 50 individuals who had been partners of that firm. These professionals formed the base of the Company’s Protiviti Inc. subsidiary. Protiviti^® has enabled the Company to enter the market for business consulting and internal audit services, which market the Company believes offers synergies with its traditional lines of business.

Accountemps

The Accountemps temporary services division offers customers a reliable and economical means of dealing with uneven or peak workloads for accounting, finance, and bookkeeping personnel caused by such predictable events as vacations, taking inventories, tax work, month-end activities and special projects, and such unpredictable events as illness and emergencies. Businesses view the use of temporary employees as a means of controlling personnel costs and converting such costs from fixed to variable. The cost and inconvenience to clients of hiring and firing regular employees are eliminated by the use of Accountemps temporaries. The temporary workers are employees of Accountemps and are paid by Accountemps. The customer pays a fixed rate only for hours worked.

Accountemps clients may fill their regular employment needs by using an Accountemps employee on a trial basis and, if so desired, “converting” the temporary position to a regular position. The client typically pays a one-time fee for such conversions.

OfficeTeam

The Company’s OfficeTeam division, which commenced operations in 1991, places temporary and full-time office and administrative personnel, ranging from executive and administrative assistants to receptionists and customer service representatives. OfficeTeam operates in much the same fashion as the Accountemps division.

Robert Half Finance & Accounting

Established in 1948, the Company’s first division and specialized recruitment pioneer Robert Half Finance & Accounting specializes in the placement of full-time accounting, financial, tax and accounting operations personnel. Fees for successful

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placements are paid only by the employer and are generally a percentage of the new employee’s annual compensation. No fee for placement services is charged to employment candidates.

Robert Half Technology

The Company’s Robert Half Technology division, which commenced operations in 1994, specializes in providing information technology contract consultants and placing full-time employees in areas ranging from multiple platform systems integration to end-user support, including specialists in web development, networking, application development, systems integration, database design, security and business continuity, and desktop support.

Robert Half Legal

Since 1992, the Company has been placing temporary and full-time employees in attorney, paralegal, legal administrative and legal secretarial positions through its Robert Half Legal division. The legal profession’s requirements (the need for confidentiality, accuracy and reliability, a strong drive toward cost-effectiveness, and frequent peak caseload periods) are similar to the demands of the clients of the Accountemps division. Robert Half Legal offers a full suite of legal staffing and consulting services to help organizations manage constantly changing workloads and access expertise across in-demand legal practice areas.

Robert Half Management Resources

The Company’s Robert Half Management Resources division, which commenced operations in 1997, specializes in providing senior level project professionals in the accounting and finance fields, including chief financial officers, controllers, senior financial analysts, internal auditors, and business systems analysts for such tasks as financial systems conversions, expansion into new markets, business process reengineering, business systems performance improvement, and post-merger financial consolidation.

The Creative Group

The Creative Group division commenced operations in 1999 and specializes in identifying for its clients creative professionals in the areas of interactive media, design, marketing, advertising and public relations. The division places freelance and project consultants in a variety of positions such as creative directors, graphics designers, web content developers, web designers, media buyers, brand managers, and public relations specialists.

Protiviti

Protiviti is a global consulting firm that helps companies solve problems in finance, technology, operations, governance, risk and internal audit. Through its risk management and internal audit heritage, Protiviti has gained unique perspectives on the challenges faced by its clients. Protiviti uses these perspectives not only to solve regulatory, risk and compliance problems, but also to help clients become more effective and productive. Protiviti provides solutions to its clients in areas such as business performance improvement, internal audit and financial advisory, IT consulting, restructuring and litigation, risk and compliance, and transaction services.

Marketing and Recruiting

The Company markets its staffing services to clients as well as employment candidates. Local marketing and recruiting are generally conducted by each office or related group of offices. Local advertising directed to clients and employment candidates consists of radio, digital, search engine marketing, social media, websites, job boards, and trade shows. Direct marketing through e-mail and telephone solicitation also constitutes a significant portion of the Company’s total advertising. National advertising conducted by the Company consists primarily of radio, streaming audio, digital display, search engine marketing, social media amplification, and advertisements in national digital and print news publications, websites, social media sites, and trade publications. Additionally, the Company has expanded its use of job boards and aggregators in all aspects of sales and recruitment. Joint marketing arrangements have been entered into with major software manufacturers and typically provide for development of proprietary skills tests, cooperative advertising, joint e-mail campaigns, and similar promotional activities. The Company also actively seeks endorsements and affiliations with professional organizations in the business management, technology, office administration, and professional secretarial fields. In addition, the Company conducts public relations activities designed to enhance public recognition of the Company and its services. This includes outreach to journalists, bloggers and social media influencers, and the distribution of thought leadership via print, video, corporate-maintained social media sites and other online properties. Robert Half staffing and recruiting professionals are encouraged to be active in civic organizations and industry trade groups in their local communities.

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Protiviti markets its business consulting and internal audit services to a variety of clients in a range of industries. Industry and competency teams conduct targeted marketing efforts, both locally and nationally, including print advertising and branded speaking events, with support from Protiviti management. National advertising conducted by Protiviti consists primarily of print advertisements in national newspapers, magazines and selected trade journals. Protiviti has programs to share its insights with clients on current corporate governance and risk management issues. It conducts public relations activities, such as distributing press releases, white papers, case studies and newsletters, designed to enhance recognition for the Protiviti brand, establish its expertise in key issues surrounding its business and promote its services. Protiviti plans to expand both the services and value added content on the Protiviti.com website and increase traffic through targeted Internet advertising. Local employees are encouraged to be active in relevant social media communities, civic organizations and industry trade groups.

The Company and its subsidiaries own many trademarks, service marks and tradenames, including the Robert Half^® Finance & Accounting, Accountemps^®, OfficeTeam^®, Robert Half^® Technology, Robert Half^® Management Resources, Robert Half^® Legal, The Creative Group^® and Protiviti^® marks, which are registered in the United States and in a number of foreign countries.

Organization

Management of the Company’s staffing operations is coordinated from its headquarters facilities in Menlo Park and San Ramon, California. The Company’s headquarters provides support and centralized services to its offices in the administrative, marketing, public relations, accounting, training and legal areas, particularly as it relates to the standardization of the operating procedures of its offices. As of December 31, 2015, the Company conducted its staffing services operations through 332 offices in 42 states, the District of Columbia and 17 foreign countries. Office managers are responsible for most activities of their offices, including sales, local advertising and marketing and recruitment.

The day-to-day operations of Protiviti are managed by a chief executive officer and a senior management team with operational and administrative support provided by individuals located in San Ramon and Menlo Park, California. As of December 31, 2015, Protiviti had 56 offices in 23 states and 11 foreign countries.

Competition

The Company’s staffing services face competition in attracting clients as well as skilled specialized employment candidates. The staffing business is highly competitive, with a number of firms offering services similar to those provided by the Company on a national, regional or local basis. In many areas the local companies are the strongest competitors. The most significant competitive factors in the staffing business are price and the reliability of service, both of which are often a function of the availability and quality of personnel. The Company believes it derives a competitive advantage from its long experience with and commitment to the specialized employment market, its national presence, and its various marketing activities.

Protiviti faces competition in its efforts to attract clients and win proposal presentations. The risk consulting and internal audit businesses are highly competitive. In addition, the changing regulatory environment is increasing opportunities for non-attestation audit and risk consulting services. The principal competitors of Protiviti remain the “big four” accounting firms. Significant competitive factors include reputation, technology, tools, project methodologies, price of services and depth of skills of personnel. Protiviti believes its competitive strengths lie in its unique ability to couple the deep skills and proven methodologies of its “big four” heritage with the customer focus and attention of a smaller organization.

Employees

The Company has approximately 16,100 full-time employees, including approximately 3,300 engaged directly in Protiviti operations. In addition, the Company placed approximately 220,000 temporary employees on assignments with clients during 2015. Employees placed by the Company on assignment with clients are the Company’s employees for all purposes while they are working on assignments. The Company pays the related costs of employment, such as workers’ compensation insurance, state and federal unemployment taxes, social security and certain fringe benefits. The Company provides access to voluntary health insurance coverage to interested temporary employees.

Other Information

The Company’s current business constitutes three business segments. (See Note M of Notes to Consolidated Financial Statement in Item 8. Financial Statements and Supplementary Data for financial information about the Company’s segments.)

The Company is not dependent upon a single customer or a limited number of customers. The Company’s staffing services operations are generally more active in the first and fourth quarters of a calendar year. Protiviti is generally more active in the third and fourth quarters of a calendar year. Order backlog is not a material aspect of the Company’s staffing services

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business. While backlog is of greater importance to Protiviti, the Company does not believe, based upon the length of time of the average Protiviti engagement, that backlog is a material aspect of the Protiviti business. No material portion of the Company’s business is subject to government contracts.

Information about foreign operations is contained in Note M of Notes to Consolidated Financial Statements in Item 8. The Company does not have export sales.

Available Information

The Company’s Internet address is www.roberthalf.com. The Company makes available, free of charge, through its website, its Annual Reports on Form 10-K, proxy statements for its annual meetings of stockholders, its Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, and any amendments to those reports, as soon as is reasonably practicable after such reports are filed with or furnished to the Securities and Exchange Commission. Also available on the Company’s website are its Corporate Governance Guidelines, its Code of Business Conduct and Ethics, and the charters for its Audit Committee, Compensation Committee and Nominating and Governance Committee, each of which is available in print to any stockholder who makes a request to Robert Half International Inc., 2884 Sand Hill Road, Menlo Park, CA 94025, Attn: Corporate Secretary. The Company’s Code of Business Conduct and Ethics is the Code of Ethics required by Item 406 of Securities and Exchange Commission Regulation S-K. The Company intends to satisfy any disclosure obligations under Item 5.05 of Form 8-K regarding any amendment or waiver relating to its Code of Business Conduct and Ethics by posting such information on its website.

Item 1A.    Risk Factors

The Company’s business prospects are subject to various risks and uncertainties that impact its business. The most important of these risks and uncertainties are as follows:

The global economic downturn may continue to harm the Company’s business and financial condition.    Many of the Company’s markets, particularly in Europe, are currently experiencing a prolonged economic downturn characterized by high unemployment, limited availability of credit and decreased consumer and business spending. Given the nature of the Company’s business, financial results could be significantly harmed should this downturn continue for an extended period of time or intensify. In the past, the Company’s business has suffered during periods of high unemployment as demand for staffing services tends to significantly decrease during such periods. The impact of this downturn on the Company’s business could be further dramatized given the severe impact it has had and may continue to have on the global labor markets.

Any reduction in global economic activity may harm theCompany’s business.    The demand for the Company’s services, in particular its staffing services, is highly dependent upon the state of the economy and upon the staffing needs of the Company’s clients. Any variation in the economic condition or unemployment levels of the U.S. or of any of the foreign countries in which the Company does business, or in the economic condition of any region of any of the foregoing, or in any specific industry may severely reduce the demand for the Company’s services and thereby significantly decrease the Company’s revenues and profits.

The Company’s business depends on a strong reputation and anything that harms its reputation will likely harm its results.    As a provider of temporary and permanent staffing solutions as well as consultant services, the Company’s reputation is dependent upon the performance of the employees it places with its clients and the services rendered by its consultants. The Company depends on its reputation and name recognition to secure engagements and to hire qualified employees and consultants. If the Company’s clients become dissatisfied with the performance of those employees or consultants or if any of those employees or consultants engage in or are believed to have engaged in conduct that is harmful to the Company’s clients, the Company’s ability to maintain or expand its client base may be harmed.

The Company and certain subsidiaries are defendants in several lawsuits that could cause the Company to incur substantial liabilities.    The Company and certain subsidiaries are defendants in several actual or asserted class and representative action lawsuits brought by or on behalf of the Company’s current and former employees alleging violations of federal and state law with respect to certain wage and hour related matters, as well as claims challenging the Company’s compliance with the Fair Credit Reporting Act. The various claims made in one or more of such lawsuits include, among other things, the misclassification of certain employees as exempt employees under applicable law, failure to comply with wage statement requirements, failure to compensate certain employees for time spent performing activities related to the interviewing process, and other related wage and hour violations. Such suits seek, as applicable, unspecified amounts for unpaid overtime compensation, penalties, and other damages, as well as attorneys’ fees. It is not possible to predict the outcome of these lawsuits. However, these lawsuits may consume substantial amounts of the Company’s financial and managerial resources and might result in adverse publicity, regardless of the ultimate outcome of the lawsuits. In addition, the Company and its subsidiaries may become subject to similar lawsuits in the same or other jurisdictions. An unfavorable outcome with respect to

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these lawsuits and any future lawsuits could, individually or in the aggregate, cause the Company to incur substantial liabilities that may have a material adverse effect upon the Company’s business, financial condition or results of operations. In addition, an unfavorable outcome in one or more of these cases could cause the Company to change its compensation plans for its employees, which could have a material adverse effect upon the Company’s business.

The Company faces risks in operating internationally.    The Company depends on operations in international markets, including Europe, for a significant portion of its business. The European market has been experiencing on-going economic uncertainty which has adversely affected, and may continue to adversely affect, the Company’s operations in Europe. To the extent that these adverse economic conditions in Europe continue or worsen, demand for the Company’s services may decline, which could significantly harm its business and results of operations. In addition, these international operations are subject to a number of risks, including general political and economic conditions in those foreign countries, the burden of complying with various foreign laws and technical standards and unpredictable changes in foreign regulations, U.S. legal requirements governing U.S. companies operating in foreign countries, legal and cultural differences in the conduct of business, potential adverse tax consequences and difficulty in staffing and managing international operations. In addition, the Company’s business may be affected by foreign currency exchange fluctuations. In particular, the Company is subject to risk in translating its results in foreign currencies into the U.S. dollar. If the value of the U.S. dollar strengthens relative to other currencies, the Company’s reported income from these operations could decrease. The value of the U.S. dollar has recently strengthened considerably against a number of major foreign currencies, and a continuation or extension of this strength relative to these other currencies could adversely impact the Company’s reported income from its international markets and cause its revenue in such markets, when translated into U.S. dollars, to decline.

Government regulations may result in prohibition or restriction of certain types of employment services or the imposition of additional licensing or tax requirements that may reduce the Company’s future earnings.    In many jurisdictions in which the Company operates, the employment services industry is heavily regulated. For example, governmental regulations in some countries restrict the length of contracts and the industries in which the Company’s employees may be used. In other countries, special taxes, fees or costs are imposed in connection with the use of its employees. Additionally, trade unions in some countries have used the political process to target the industry, in an effort to increase the regulatory burden and expense associated with offering or utilizing temporary staffing solutions.

The countries in which we operate may, among other things:

• create additional regulations that prohibit or restrict the types of employment services that the Company currently provides;

• require new or additional benefits be paid to the Company’s employees;

• require the Company to obtain additional licensing to provide employment services; or

• increase taxes, such as sales or value-added taxes, payable by the providers of temporary workers.

Any future regulations may have a material adverse effect on the Company’s business and financial results because they may make it more difficult or expensive for the Company to continue to provide employment services. Additionally, as the Company expands existing service offerings, adds new service offerings, or enters new markets, it may become subject to additional restrictions and regulations which may impede its business, increase costs and impact profitability.

The Company may be unable to find sufficient candidates for its staffing business.    The Company’s staffing services business consists of the placement of individuals seeking employment. There can be no assurance that candidates for employment will continue to seek employment through the Company. Candidates generally seek temporary or regular positions through multiple sources, including the Company and its competitors. Any shortage of candidates could materially adversely affect the Company.

The Company operates in a highly competitive businessand may be unable to retain clients or market share.    The staffing services business is highly competitive and, because it is a service business, the barriers to entry are quite low. There are many competitors, some of which have greater resources than the Company, and new competitors are entering the market all the time. In addition, long-term contracts form a negligible portion of the Company’s revenue. Therefore, there can be no assurance that the Company will be able to retain clients or market share in the future. Nor can there be any assurance that the Company will, in light of competitive pressures, be able to remain profitable or, if profitable, maintain its current profit margins.

The Company may incur potential liability to employees and clients.    The Company’s temporary services business entails employing individuals on a temporary basis and placing such individuals in clients’ workplaces. The Company’s ability to control the workplace environment is limited. As the employer of record of its temporary employees, the Company incurs a risk of liability to its temporary employees for various workplace events, including claims of physical injury, discrimination, harassment or failure to protect confidential personal information. While such claims have not historically had a material

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adverse effect upon the Company, there can be no assurance that such claims in the future will not result in adverse publicity or have a material adverse effect upon the Company. The Company also incurs a risk of liability to its clients resulting from allegations of errors, omissions or theft by its temporary employees, or allegations of misuse of client confidential information. In many cases, the Company has agreed to indemnify its clients in respect of these types of claims. The Company maintains insurance with respect to many of such claims. While such claims have not historically had a material adverse effect upon the Company, there can be no assurance that the Company will continue to be able to obtain insurance at a cost that does not have a material adverse effect upon the Company or that such claims (whether by reason of the Company not having sufficient insurance or by reason of such claims being outside the scope of the Company’s insurance) will not have a material adverse effect upon the Company.

The Company is dependent on its management personnel and employees and a failure to attract and retain such personnel could harm its business.    The Company is engaged in the services business. As such, its success or failure is highly dependent upon the performance of its management personnel and employees, rather than upon technology or upon tangible assets (of which the Company has few). There can be no assurance that the Company will be able to attract and retain the personnel that are essential to its success.

The Company’s business is subject to extensive government regulation and a failure to comply with regulations could harm its business.    The Company’s business is subject to regulation or licensing in many states in the U.S. and in certain foreign countries. While the Company has had no material difficulty complying with regulations in the past, there can be no assurance that the Company will be able to continue to obtain all necessary licenses or approvals or that the cost of compliance will not prove to be material. Any inability of the Company to comply with government regulation or licensing requirements could materially adversely affect the Company. In addition, the Company’s temporary services business entails employing individuals on a temporary basis and placing such individuals in clients’ workplaces. Increased government regulation of the workplace or of the employer-employee relationship, or judicial or administrative proceedings related to such regulation, could materially adversely affect the Company. In addition, to the extent that government regulation imposes increased costs upon the Company, such as unemployment insurance taxes, there can be no assurance that such costs will not adversely impact the Company’s profit margins. Further, lawsuits or other proceedings related to the Company’s compliance with government regulations or licensing requirements could materially adversely affect the Company.  For example, the Company is currently named as a defendant in litigation challenging its compliance with the Fair Credit Reporting Act.  It is not possible to predict the outcome of such litigation; however, such litigation or any future lawsuits or proceedings related to the Company’s compliance with government regulation or licensing requirements could consume substantial amounts of the Company’s financial and managerial resources and might result in adverse publicity, regardless of the ultimate outcome of any such lawsuits or other proceedings.  An unfavorable outcome with respect to such litigation or any future lawsuits or proceedings could, individually or in the aggregate, cause the Company to incur substantial liabilities that may have a material adverse effect upon the Company’s business, financial condition or results of operations.

Health care reform could increase the costs of the Company’s temporary staffing operations.    In March 2010, the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010 (the “PPACA”) was signed into law in the United States. The PPACA imposed new mandates on individuals and employers, requiring most individuals to have health insurance and, beginning in 2015, assessing penalties on large employers that do not offer health insurance that meets certain coverage, value, or affordability standards. Beginning 2015, the Company has redesigned its employee benefits to offer health insurance coverage to its temporary candidates in a way that it believes meets the requirements of the PPACA’s employer mandate. Providing such additional health insurance benefits and an increase in the number of employees who elect to participate in the Company’s health plans may significantly increase the Company’s health care-related costs as compared to historical periods. While the Company is attempting to recover these costs from its customers, there can be no assurance that it will be successfully able to do so, and any difficulties it encounters in recovering such costs will cause its financial results to suffer.

In addition, because the regulations governing the PPACA’s employer mandate are new and subject to interpretation, it is possible that despite the Company’s efforts, the Company may incur liability in the form of penalties, fines, or damages if:

• the health plans offered to temporary candidates are subsequently found not to meet minimum essential coverage, affordability or minimum value standards;

• the Company’s method for determining eligibility for coverage is found inadequate; or

• the Company’s clients seek indemnification for health care claims by candidates working on client assignments.

The cost of any such penalties, fines, or damages could have a material adverse effect on the Company’s financial and operating results.

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The Company’s computer and communications hardware and software systems are vulnerable to damage and interruption.    The Company’s ability to manage its operations successfully is critical to its success and largely depends upon the efficient and uninterrupted operation of its computer and communications hardware and software systems, some of which are managed by third-party vendors. The Company’s primary computer systems and operations are vulnerable to damage or interruption from power outages, computer and telecommunications failures, computer viruses, security breaches, catastrophic events and errors in usage by the Company’s employees and those of the Company’s vendors. In particular, the Company’s employees or vendors may have access or exposure to personally identifiable or otherwise confidential information and customer data and systems, the misuse of which could result in legal liability. Cyber-attacks, including attacks motivated by grievances against the business services industry in general or against the Company in particular, may disable or damage its systems. It is possible that the Company’s security controls or those of its third-party vendors over personal and other data and other practices it follows may not prevent the improper access to or disclosure of personally identifiable or otherwise confidential information.  Such disclosure or damage to the Company’s systems could harm its reputation and subject it to government sanctions and liability under its contracts and laws that protect personal data and confidential information, resulting in increased costs or loss of revenue. The potential risk of security breaches and cyber-attacks may increase as the Company introduces new service offerings.

Failure to maintain adequate financial and management processes and controls could lead to errors in the Company’s financial reporting.    Failure to maintain adequate financial and management processes and controls could lead to errors in the Company’s financial reporting. If the Company’s management is unable to certify the effectiveness of its internal controls or if its independent registered public accounting firm cannot render an opinion on the effectiveness of its internal control over financial reporting, or if material weaknesses in the Company’s internal controls are identified, the Company could be subject to regulatory scrutiny and a loss of public confidence. In addition, if the Company does not maintain adequate financial and management personnel, processes and controls, it may not be able to accurately report its financial performance on a timely basis, which could cause its stock price to fall.

The Company’s results of operations and ability to grow could be materially negatively affected if it cannot successfully keep pace with technological changes in the development and implementation of its services.    The Company’s success depends on its ability to keep pace with rapid technological changes in the development and implementation of its services. The Company’s business is reliant on a variety of technologies, including those which support hiring and tracking, order management, billing, and client data analytics. If the Company does not sufficiently invest in new technology and industry developments, appropriately implement new technologies, or evolve its business at sufficient speed and scale in response to such developments, or if it does not make the right strategic investments to respond to these developments, the Company’s services, results of operations, and ability to develop and maintain its business could be negatively affected.

The demand for the Company’s services related to Sarbanes-Oxley or other regulatory compliance may decline.    The operations of both the staffing services business and Protiviti include services related to Sarbanes-Oxley and other regulatory compliance. There can be no assurance that there will be ongoing demand for these services. For example, the Jumpstart Our Business Startup (“JOBS”) Act signed into law in April of 2012 allows most companies going public in the U.S. to defer implementation of some of the provisions of Sarbanes-Oxley for up to five years after their initial public offering. Similarly there are a number of proposals currently being considered by the U.S. Congress to further delay or, in some cases, remove the requirements of Sarbanes-Oxley for a number of public companies. These or other similar delays or modifications of the Sarbanes Oxley requirements could decrease demand for Protiviti’s services.

Long-term contracts do not comprise a significant portion of the Company’s revenue.    Because long-term contracts are not a significant part of the Company’s staffing services business, future results cannot be reliably predicted by considering past trends or extrapolating past results. Additionally, the Company’s clients will frequently enter into non-exclusive arrangements with several firms, which the client is generally able to terminate on short notice and without penalty. The nature of these arrangements further exacerbates the difficulty in predicting our future results.

Protiviti may be unable to attract and retain key personnel.Protiviti is a services business, and is dependent upon its ability to attract and retain qualified, skilled personnel. While Protiviti has retained its key personnel to date, there can be no assurance that it will continue to be able to do so.

Protiviti operates in a highly competitive business and faces competitors who are significantly larger and have more established reputations.    Protiviti operates in a highly competitive business. As with the Company’s staffing services business, the barriers to entry are quite low. There are many competitors, some of which have greater resources than Protiviti and many of which have been in operation far longer than Protiviti. In particular, Protiviti faces competition from the “big four” accounting firms, which have been in operation for a considerable period of time and have established reputations and client bases. Because the principal factors upon which competition is based are reputation, technology, tools, project methodologies,

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price of services and depth of skills of personnel, there can be no assurance that Protiviti will be successful in attracting and retaining clients or be able to maintain the technology, personnel and other requirements to successfully compete.

Protiviti’s operations could subject it to liability.    The business of Protiviti consists of providing business consulting and internal audit services. Liability could be incurred or litigation could be instituted against the Company or Protiviti for claims related to these activities or to prior transactions or activities. There can be no assurance that such liability or litigation will not have a material adverse impact on Protiviti or the Company.

Item 1B.    Unresolved Staff Comments.

Not applicable.

Item 2.    Properties

The Company’s headquarters operations are located in Menlo Park and San Ramon, California. As of December 31, 2015, placement activities were conducted through 332 offices located in the United States, Canada, the United Kingdom, Belgium, Brazil, France, the Netherlands, Germany, Luxembourg, Switzerland, Japan, China, Singapore, Australia, New Zealand, Austria, the United Arab Emirates, and Chile. As of December 31, 2015, Protiviti had 56 offices in the United States, Canada, Australia, China, France, Germany, Italy, the Netherlands, Japan, Singapore, India and the United Kingdom. All of the offices are leased.

Item 3.    Legal Proceedings

On April 23, 2010, Plaintiffs David Opalinski and James McCabe, on behalf of themselves and a putative class of similarly situated Staffing Managers, filed a Complaint in the United States District Court for the District of New Jersey naming the Company and one of its subsidiaries as Defendants. The Complaint alleges that salaried Staffing Managers located throughout the U.S. have been misclassified as exempt from the Fair Labor Standards Act’s overtime pay requirements. Plaintiffs seek an unspecified amount for unpaid overtime on behalf of themselves and the class they purport to represent. Plaintiffs also seek an unspecified amount for statutory penalties, attorneys’ fees and other damages. On October 6, 2011, the Court granted the Company’s motion to compel arbitration of the Plaintiffs’ allegations. At this stage, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from these allegations and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations, and the Company intends to continue to vigorously defend against the allegations.

On March 13, 2014, Plaintiff Leonor Rodriguez, on her own behalf and on behalf of a putative class of allegedly similarly situated individuals, filed a complaint against the Company in the Superior Court of California, San Diego County. The complaint alleges that a putative class of current and former employees of the Company working in California since March 13, 2011 were denied compensation for the time they spent interviewing with clients of the Company as well as performing activities related to the interview process. Rodriguez seeks recovery on her own behalf and on behalf of the putative class in an unspecified amount for this allegedly unpaid compensation. Rodriguez also seeks recovery of an unspecified amount for the alleged failure of the Company to provide her and the putative class with accurate wage statements. Rodriguez also seeks an unspecified amount of other damages, attorneys’ fees, and statutory penalties, including but not limited to statutory penalties on behalf of herself and other allegedly “aggrieved employees” as defined by California’s Labor Code Private Attorney General Act (“PAGA”). On October 10, 2014, the Court granted a motion by the Company to compel all of Rodriguez’s claims, except the PAGA claim, to individual arbitration. At this stage of the litigation, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from this proceeding and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations and the Company intends to continue to vigorously defend against the litigation.

On March 23, 2015, Plaintiff Jessica Gentry, on her own behalf and on behalf of a putative class of allegedly similarly situated individuals, filed a complaint against the Company in the Superior Court of California, San Francisco County, which was subsequently amended on October 23, 2015. The complaint, which was filed by the same plaintiffs’ law firm that brought the Rodriguez matter described above, alleges claims similar to those alleged in Rodriguez. Specifically, the complaint alleges that a putative class of current and former employees of the Company working in California since March 13, 2010 were denied compensation for the time they spent interviewing “for temporary and permanent employment opportunities” as well as performing activities related to the interview process. Gentry seeks recovery on her own behalf and on behalf of the putative class in an unspecified amount for this allegedly unpaid compensation. Gentry also seeks recovery of an unspecified amount for the alleged failure of the Company to provide her and the putative class with accurate wage statements. Gentry also seeks an unspecified amount of other damages, attorneys’ fees, and statutory penalties, including penalties for allegedly not paying all wages due upon separation to former employees and statutory penalties on behalf of herself and other allegedly “aggrieved employees” as defined by PAGA. On January 4, 2016, the Court denied a motion by the Company to compel all of Gentry’s

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claims, except the PAGA claim, to individual arbitration. At this stage of the litigation, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from this proceeding and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations and the Company intends to continue to vigorously defend against the litigation.

The Company is involved in a number of other lawsuits arising in the ordinary course of business. While management does not expect any of these other matters to have a material adverse effect on the Company’s results of operations, financial position or cash flows, litigation is subject to certain inherent uncertainties.

Item 4.    Mine Safety Disclosure

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Price, Dividends and Related Matters

The Company’s Common Stock is listed for trading on the New York Stock Exchange under the symbol “RHI”. On January 31, 2016, there were 1,303 holders of record of the Common Stock.

Following is a list by fiscal quarters of the sales prices of the stock:

	Sales Prices
2015	High		Low
4th Quarter	$	54.01	$	44.95
3rd Quarter	$	58.00	$	49.18
2nd Quarter	$	60.54	$	54.58
1st Quarter	$	63.27	$	55.60

	Sales Prices
2014	High		Low
4th Quarter	$	59.45	$	45.30
3rd Quarter	$	53.08	$	46.98
2nd Quarter	$	48.13	$	39.57
1st Quarter	$	43.06	$	38.62

Cash dividends of $.20 per share were declared and paid in each quarter of 2015. Cash dividends of $.18 per share were declared and paid in each quarter of 2014.

Issuer Purchases of Equity Securities

	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans	Maximum Number of Shares that May Yet Be Purchased Under Publicly Announced Plans (b)
October 1, 2015 to October 31, 2015	—		—		—	11,823,541
November 1, 2015 to November 30, 2015	100,000		$	50.90	100,000	11,723,541
December 1, 2015 to December 31, 2015	1,590,345	(a)	$	47.22	1,310,947	10,412,594
Total October 1, 2015 to December 31, 2015	1,690,345				1,410,947

(a) Includes 279,398 shares repurchased in connection with employee stock plans, whereby Company shares were tendered by employees for the payment of applicable withholding taxes and/or exercise price.

(b) Commencing in October 1997, the Company’s Board of Directors has, at various times, authorized the repurchase, from time to time, of the Company’s common stock on the open market or in privately negotiated transactions depending on market conditions. Since plan inception, a total of 108,000,000 shares have been authorized for repurchase of which 97,587,406 shares have been repurchased as of December 31, 2015.

The remainder of the information required by this item is incorporated by reference to Part III, Item 12 of this Form 10-K.

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Stock Performance Graph

The following graph compares, through December 31, 2015, the cumulative total return of the Company’s Common Stock, an index of certain publicly traded employment services companies, and the S&P 500. The graph assumes the investment of $100 at the beginning of the period depicted in the chart and reinvestment of all dividends. The information presented in the graph was obtained by the Company from outside sources it considers to be reliable but has not been independently verified by the Company.

(a) This index represents the cumulative total return of the Company and the following corporations providing temporary or permanent employment services: CDI Corp.; Kelly Services, Inc.; Kforce Inc.; ManpowerGroup; and Resources Connection Inc.

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Item 6. Selected Financial Data

The selected five-year financial data presented below should be read in conjunction with the information contained in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations, and the Company’s Consolidated Financial Statements and the Notes thereto contained in Item 8. Financial Statements and Supplementary Data.

	Years Ended December 31,
	2015			2014			2013			2012			2011
	(in thousands)
Income Statement Data:
Net service revenues	$	5,094,933		$	4,695,014		$	4,245,895		$	4,111,213		$	3,776,976
Direct costs of services, consisting of payroll, payroll taxes, benefit costs and reimbursable expenses	2,980,462			2,772,098			2,522,803			2,462,153			2,287,374
Gross margin	2,114,471			1,922,916			1,723,092			1,649,060			1,489,602
Selling, general and administrative expenses	1,533,799			1,425,734			1,324,815			1,305,614			1,240,184
Amortization of intangible assets	192			557			1,700			398			153
Interest income, net	(550		)	(724		)	(1,002		)	(1,197		)	(951		)
Income before income taxes	581,030			497,349			397,579			344,245			250,216
Provision for income taxes	223,234			191,421			145,384			134,303			100,294
Net income	$	357,796		$	305,928		$	252,195		$	209,942		$	149,922
Net income available to common stockholders—diluted	$	357,796		$	305,928		$	252,192		$	208,867		$	147,772
	Years Ended December 31,
	2015			2014			2013			2012			2011
	(in thousands, except per share amounts)
Net Income Per Share:
Basic	$	2.72		$	2.28		$	1.85		$	1.51		$	1.05
Diluted	$	2.69		$	2.26		$	1.83		$	1.50		$	1.04
Shares:
Basic	131,749			134,358			136,153			138,201			140,479
Diluted	132,930			135,541			137,589			139,409			141,790
Cash Dividends Declared Per Share	$	.80		$	.72		$	.64		$	.60		$	.56
	December 31,
	2015			2014			2013			2012			2011
	(in thousands)
Balance Sheet Data:
Total assets	$	1,702,960		$	1,647,267		$	1,490,271		$	1,381,271		$	1,311,836
Notes payable and other indebtedness, less current portion	$	1,007		$	1,159		$	1,300		$	1,428		$	1,545
Stockholders’ equity	$	1,003,781		$	979,858		$	919,643		$	842,011		$	800,505

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Certain information contained in Management’s Discussion and Analysis and in other parts of this report may be deemed forward-looking statements regarding events and financial trends that may affect the Company’s future operating results or financial positions. These statements may be identified by words such as “estimate”, “forecast”, “project”, “plan”, “intend”, “believe”, “expect”, “anticipate”, or variations or negatives thereof or by similar or comparable words or phrases. Forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the statements. These risks and uncertainties include, but are not limited to, the following: the global financial and economic situation; changes in levels of unemployment and other economic conditions in the United States or foreign countries where the Company does business, or in particular regions or industries; reduction in the supply of candidates for temporary employment or the Company’s ability to attract candidates; the entry of new competitors into the marketplace or expansion by existing competitors; the ability of the Company to maintain existing client relationships and attract new clients in the context of changing economic or competitive conditions; the impact of competitive pressures, including any change in the demand for the Company’s services, on the Company’s ability to maintain its margins; the possibility of the Company incurring liability for its activities, including the activities of its temporary employees, or for events impacting its temporary employees on clients’ premises; the possibility that adverse publicity could impact the Company’s ability to attract and retain clients and candidates; the success of the Company in attracting, training, and retaining qualified management personnel and other staff employees; the Company’s ability to comply with governmental regulations affecting personnel services businesses in particular or employer/employee relationships in general; whether there will be ongoing demand for Sarbanes-Oxley or other regulatory compliance services; the Company’s reliance on short-term contracts for a significant percentage of its business; litigation relating to prior or current transactions or activities, including litigation that may be disclosed from time to time in the Company’s SEC filings; the ability of the Company to manage its international operations and comply with foreign laws and regulations; the impact of fluctuations in foreign currency exchange rates; the possibility that the additional costs the Company will incur as a result of health care reform legislation may adversely affect the Company’s profit margins or the demand for the Company’s services; the possibility that the Company’s computer and communications hardware and software systems could be damaged or their service interrupted; and the possibility that the Company may fail to maintain adequate financial and management controls and as a result suffer errors in its financial reporting. Additionally, with respect to Protiviti, other risks and uncertainties include the fact that future success will depend on its ability to retain employees and attract clients; there can be no assurance that there will be ongoing demand for Sarbanes-Oxley or other regulatory compliance services; failure to produce projected revenues could adversely affect financial results; and there is the possibility of involvement in litigation relating to prior or current transactions or activities. Because long-term contracts are not a significant part of the Company’s business, future results cannot be reliably predicted by considering past trends or extrapolating past results. Further information regarding these and other risks and uncertainties is contained in Item 1A. “Risk Factors.”

Executive Overview

Demand for the Company’s temporary and permanent staffing services and risk consulting and internal audit services is

largely dependent upon general economic and labor trends both domestically and abroad. Correspondingly, financial results for the year ended December 31, 2015 were positively impacted by improved global economic conditions, largely driven by improvements in the United States with more modest growth in the non-U.S. markets we serve. Annual net service revenues reached $5.09 billion in 2015, an increase of 9% from the prior year. Full-year 2015 net income increased 17% to $358 million and diluted net income per share increased 19% to $2.69. All three of the Company's operating segments experienced strong revenue growth, led by Protiviti which increased 22% in 2015 on a same-day, constant-currency basis compared to the last year.

We believe that the Company is well positioned to benefit from the current macroeconomic environment. The United States economic backdrop during 2015 was generally favorable for the Company as real gross domestic product (GDP) grew 2.4%, while the unemployment rate declined from 5.6% in December 2014 to 5.0% in December 2015. In the United States 2.7 million jobs were added over the course of the year in 2015. A number of professional occupations are nearing full employment, which is placing pressure on the supply of available talent and increasing our value to clients. The secular demand for temporary staffing is also ongoing. The use of flexible workers matched an all-time high during 2015, and temporary employees represented 2.06% of the U.S. workforce as of December 31, 2015.

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Protiviti has successfully diversified its service offerings, built a loyal and growing client base, and is seeing steady demand in all of its major consulting solutions. Protiviti serves its clients in areas such as internal audit and financial advisory services, risk and compliance, and information technology consulting, among others.

We monitor various economic indicators and business trends in all of the countries in which we operate to anticipate

demand for the Company’s services. We evaluate these trends to determine the appropriate level of investment, including

personnel, which will best position the Company for success in the current and future global macroeconomic environment. The

Company’s investments in headcount are typically structured to proactively support and align with expected revenue growth

trends. As such, particularly during the second half of 2015, we added headcount in all of the Company’s lines of business.

We have limited visibility into future revenues not only due to the dependence on macroeconomic conditions noted

above, but also because of the relatively short duration of the Company’s client engagements. Accordingly, we typically assess

headcount and other investments on at least a quarterly basis.

Capital expenditures in 2015 totaled $75 million, approximately 70% of which represented investments in software initiatives and technology infrastructure, both of which are important to the Company’s future growth opportunities. Major software initiatives include upgrades to enterprise resource planning applications and the continued implementation of a global, cloud-based customer relationship management application. Infrastructure and computer hardware initiatives in 2015 have focused on delivering mobile technology to the Company's professional staff, upgrading data networks, and enhancing video capabilities and telecommunication systems. Our investments in these and other technology initiatives are expected to continue in 2016. Capital expenditures also included amounts spent on tenant improvements and furniture and equipment in the Company's leased offices. The Company will have more lease expirations in 2016 than in 2015, so we expect higher capital expenditures related to tenant improvements. We currently expect that 2016 capital expenditures will range from $90 million to $100 million.

Critical Accounting Policies and Estimates

As described below, the Company’s most critical accounting policies and estimates are those that involve subjective decisions or assessments.

Accounts Receivable Allowances.    The Company maintains allowances for estimated losses resulting from (i) the inability of its customers to make required payments, (ii) temporary placement sales adjustments, and (iii) permanent placement candidates not remaining with the client through the 90-day guarantee period, commonly referred to as “fall offs”. The Company establishes these allowances based on its review of customers’ credit profiles, historical loss statistics and current trends. The adequacy of these allowances is reviewed each reporting period. Historically, the Company’s actual losses and credits have been consistent with these allowances. As a percentage of gross accounts receivable, the Company’s accounts receivable allowances totaled 4.7% and 4.4% as of December 31, 2015 and 2014, respectively. As of December 31, 2015, a five-percentage point deviation in the Company’s accounts receivable allowances balance would have resulted in an increase or decrease in the allowance of $1.8 million. Although future results cannot always be predicted by extrapolating past results, management believes that it is reasonably likely that future results will be consistent with historical trends and experience. However, if the financial condition of the Company’s customers were to deteriorate, resulting in an impairment of their ability to make payments, or if unexpected events or significant future changes in trends were to occur, additional allowances may be required.

Income Tax Assets and Liabilities.    In establishing its deferred income tax assets and liabilities, the Company makes judgments and interpretations based on the enacted tax laws and published tax guidance that are applicable to its operations. Deferred tax assets and liabilities are measured and recorded using current enacted tax rates, which the Company expects will apply to taxable income in the years in which those temporary differences are recovered or settled. The likelihood of a material change in the Company’s expected realization of these assets is dependent on future taxable income, its ability to use foreign tax credit carryforwards and carrybacks, final U.S. and foreign tax settlements, and the effectiveness of its tax planning in the various relevant jurisdictions.

The Company also evaluates the need for valuation allowances to reduce the deferred tax assets to realizable amounts. Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to offset future tax benefits that may

14

not be realized. Valuation allowances of $26.3 million and $29.6 million were recorded as of December 31, 2015 and 2014, respectively. The valuation allowances recorded related primarily to net operating losses in certain foreign operations. If such losses are ultimately utilized to offset future operating income, the Company will recognize a tax benefit up to the full amount of the related valuation reserve.

While management believes that its judgments and interpretations regarding income taxes are appropriate, significant differences in actual experience may materially affect the future financial results of the Company.

Goodwill Impairment.    The Company assesses the impairment of goodwill annually in the second quarter, or more often if events or changes in circumstances indicate that the carrying value may not be recoverable in accordance with Financial Accounting Standards Board (“FASB”) authoritative guidance. The Company completed its annual goodwill impairment analysis as of June 30, 2015, and determined that no adjustment to the carrying value of goodwill was required. There were no events or changes in circumstances since the annual goodwill impairment assessment that caused the Company to perform an interim impairment assessment.

The Company follows FASB authoritative guidance utilizing a two-step approach for determining goodwill impairment. In the first step the Company determines the fair value of each reporting unit utilizing a present value technique derived from a discounted cash flow methodology. For purposes of this assessment the Company’s reporting units are its lines of business. The fair value of the reporting unit is then compared to its carrying value. If the fair value of the reporting unit exceeds the carrying value of the net assets assigned to that unit, goodwill is not impaired and no further testing is performed. The second step under the FASB guidance is contingent upon the results of the first step. To the extent a reporting unit’s carrying value exceeds its fair value, an indication exists that the reporting unit’s goodwill may be impaired and the Company must perform a second more detailed impairment assessment. The second step involves allocating the reporting unit’s fair value to its net assets in order to determine the implied fair value of the reporting unit’s goodwill as of the assessment date. The implied fair value of the reporting unit’s goodwill is then compared to the carrying amount of goodwill to quantify an impairment charge as of the assessment date.

The Company’s reporting units are Accountemps, Robert Half Finance & Accounting, OfficeTeam, Robert Half Technology, Robert Half Management Resources and Protiviti, which had goodwill balances at December 31, 2015, of $126.1 million, $26.3 million, $0.0 million, $7.0 million, $0.0 million and $49.2 million, respectively, totaling $208.6 million. There were no changes to the Company’s reporting units or to the allocations of goodwill by reporting unit for the year ended December 31, 2015.

The goodwill impairment assessment is based upon a discounted cash flow analysis. The estimate of future cash flows is based upon, among other things, a discount rate and certain assumptions about expected future operating performance. The discount rate for all reporting units was determined by management based on estimates of risk free interest rates, beta and market risk premiums. The discount rate used was compared to the rate published in various third party research reports, which indicated that the rate was within a range of reasonableness. The primary assumptions related to future operating performance include revenue growth rates and profitability levels. In addition, the impairment assessment requires that management make certain judgments in allocating shared assets and liabilities to the balance sheets of the reporting units. Solely for purposes of establishing inputs for the fair value calculations described above related to its annual goodwill impairment testing, the Company made the following assumptions. The Company assumed that year-to-date trends through the date of the last assessment would continue for all reporting units through 2015, using unique assumptions for each reporting unit. In addition, the Company applied profitability assumptions consistent with each reporting unit’s historical trends at various revenue levels and, for years 2017 and beyond, used a 5% growth factor. This rate is comparable to the Company’s most recent ten-year annual compound revenue growth rate. The future cash flows used to calculate fair value go out a total of 10 years with a terminal value calculation at the end of the 10 year period. In its most recent calculation, the Company used a 10.0% discount rate, which is slightly lower than the 10.2% discount rate used for the Company’s test during the second quarter of 2014. This decrease in discount rate is primarily attributable to slight decreases in the risk free rate and equity market risk premium.

In order to evaluate the sensitivity of the fair value calculations on the goodwill impairment test, the Company applied hypothetical decreases to the fair values of each reporting unit. The Company determined that hypothetical decreases in fair value of at least 74% would be required before any reporting unit would have a carrying value in excess of its fair value.

Given the current economic environment and the uncertainties regarding the impact on the Company’s business, there can be no assurance that the Company’s estimates and assumptions made for purposes of the Company’s goodwill impairment testing will prove to be accurate predictions of the future. If the Company’s assumptions regarding forecasted revenue or

15

profitability growth rates of certain reporting units are not achieved, the Company may be required to recognize goodwill impairment charges in future periods. It is not possible at this time to determine if any such future impairment charge would result or, if it does, whether such charge would be material.

Workers’ Compensation.    Except for states which require participation in state-operated insurance funds, the Company retains the economic burden for the first $0.5 million per occurrence in workers’ compensation claims. Workers’ compensation includes ongoing healthcare and indemnity coverage for claims and may be paid over numerous years following the date of injury. Claims in excess of $0.5 million are insured. Workers’ compensation expense includes the insurance premiums for claims in excess of $0.5 million, claims administration fees charged by the Company’s workers’ compensation administrator, premiums paid to state-operated insurance funds, and an estimate for the Company’s liability for Incurred But Not Reported (“IBNR”) claims and for the ongoing development of existing claims. Total workers’ compensation expense was $4.6 million, $5.7 million and $7.0 million, representing 0.11%, 0.16% and 0.22% of applicable U.S. revenue for the years ended December 31, 2015, 2014 and 2013, respectively.

The reserves for IBNR claims and for the ongoing development of existing claims in each reporting period include estimates. The Company has established reserves for workers’ compensation claims using loss development rates which are estimated using periodic third party actuarial valuations based upon historical loss statistics which include the Company’s historical frequency and severity of workers’ compensation claims, and an estimate of future cost trends. While management believes that its assumptions and estimates are appropriate, significant differences in actual experience or significant changes in assumptions may materially affect the Company’s future results. Based on the Company’s results for the year ended December 31, 2015, a five-percentage point deviation in the Company’s estimated loss development rates would have resulted in an increase or decrease in the reserve of $0.2 million.

Stock-based Compensation.    Under various stock plans, officers, employees and outside directors have received or may receive grants of restricted stock, stock units, stock appreciation rights or options to purchase common stock.

The Company recognizes compensation expense equal to the grant-date fair value for all stock-based payment awards that are expected to vest. This expense is recorded on a straight-line basis over the requisite service period of the entire award, unless the awards are subject to performance conditions, in which case the Company recognizes compensation expense over the requisite service period of each separate vesting tranche. The Company determines the grant-date fair value of its restricted stock and stock unit awards using the fair market value of its stock on the grant date, unless the awards are subject to market conditions, in which case the Company utilizes a binomial-lattice model (i.e., Monte Carlo simulation model). The Monte Carlo simulation model utilizes multiple input variables to determine the stock-based compensation expense. For grants with market conditions made in the year ended December 31, 2015, the Company utilized an historical volatility of 23.70%, a 0% dividend yield and a risk-free interest rate of 0.84%. The historical volatility was based on the most recent 2.76-year period for the Company and the components of the peer group. The stock price projection for the Company and the components of the peer group assumes a 0% dividend yield. This is mathematically equivalent to reinvesting dividends in the issuing entity over the performance period. The risk-free interest rate is equal to the yield, as of the measurement date, of the zero-coupon U.S. Treasury bill that is commensurate with the remaining performance measurement period.

No stock appreciation rights have been granted under the Company’s existing stock plans. The Company has not granted any options to purchase common stock since 2006.

For the years ended December 31, 2015, 2014 and 2013, compensation expense related to restricted stock and stock units was $41.3 million, $40.8 million and $38.9 million, respectively, of which $11.1 million, $11.7 million and $9.9 million was related to grants made in 2015, 2014 and 2013, respectively. Based on the Company’s results for the year ended December 31, 2015, a one-percentage point deviation in the estimated forfeiture rates would have resulted in a $0.4 million increase or decrease in compensation expense related to restricted stock and stock units.

Recent Accounting Pronouncements

See Note B—“New Accounting Pronouncements” to the Company’s Consolidated Financial Statements included under Part II—Item 8 of this report.

Results of Operations

Demand for the Company’s temporary and permanent staffing services and risk consulting and internal audit services is largely dependent upon general economic and labor market conditions both domestically and abroad. Correspondingly, results

16

of operations were positively impacted by improved global economic conditions during 2015. Because of the inherent difficulty in predicting economic trends and the absence of material long-term contracts in any of the Company's business units, future demand for the Company’s services cannot be forecast with certainty. We believe the Company is well positioned to benefit in the current United States macroeconomic environment. We are making investments in people and infrastructure to support business expansion, and are confident in the ability of the Company's field and corporate leadership teams to grow the business.

The Company’s temporary and permanent staffing services business has 332 offices in 42 states, the District of Columbia and 17 foreign countries, while Protiviti has 56 offices in 23 states and 11 foreign countries.

Non-GAAP Financial Measures

The financial results of the Company are prepared in conformity with accounting principles generally accepted in the United States of America ("GAAP") and the rules of the SEC. To help readers understand the Company’s financial performance, the Company supplements its GAAP financial results with revenue growth rates derived from non-GAAP revenue amounts. Variations in the Company’s financial results include the impact of changes in foreign currency exchange rates and billing days. The Company provides “same billing days and constant currency” revenue growth calculations to remove the impact of these items. These calculations show the year-over-year revenue growth rates for the Company’s reportable segments on both a reported basis and also on a same day, constant-currency basis for global, U.S. and international operations. The Company has provided this data because management believes it better reflects the Company’s actual revenue growth rates and aids in evaluating revenue trends over time. The Company expresses year-over-year revenue changes as calculated percentages using the same number of billing days and constant currency exchange rates.

In order to calculate constant currency revenue growth rates, as reported amounts are retranslated using foreign currency exchange rates from the prior year’s comparable period. Management then calculates a global, weighted-average number of billing days for each reporting period based upon input from all countries and all lines of business. In order to remove the fluctuations caused by comparable periods having different billing days, the Company calculates same billing day revenue growth rates by dividing each comparative period’s reported revenues by the calculated number of billing days for that period, to arrive at a per billing day amount. Same billing day growth rates are then calculated based upon the per billing day amounts. The term “same billing days and constant currency” means that the impact of different billing days has been removed from the constant currency calculation.

The non-GAAP financial measures provided herein may not provide information that is directly comparable to that provided by other companies in the Company’s industry, as other companies may calculate such financial results differently. The Company’s non-GAAP financial measures are not measurements of financial performance under GAAP, and should not be considered as alternatives to actual revenue growth derived from revenue amounts presented in accordance with GAAP. The Company does not consider these non-GAAP financial measures to be a substitute for, or superior to, the information provided by GAAP financial results. A reconciliation of the same-day, constant-currency revenue growth rates to the reported revenue growth rates is provided herein.

Refer to Item 7a. "Quantitative and Qualitative Disclosures About Market Risk" for further discussion of the impact of foreign currency exchange rates on the Company's results of operations and financial condition.

Years ended December 31, 2015 and 2014

Revenues.    The Company’s revenues were $5.09 billion for the year ended December 31, 2015, increasing by 8.5% compared to $4.70 billion for the year ended December 31, 2014. Revenues from foreign operations represented 19% and 23% of total revenues for the years ended December 31, 2015 and 2014, respectively. The Company analyzes its revenues for three reportable segments: temporary and consultant staffing, permanent placement staffing and risk consulting and internal audit services. In 2015, revenues for all three of the Company’s reportable segments were up compared to 2014. Results were strongest domestically with demand also improving in several other countries, most notably within Europe. Risk consulting and internal audit services continued to post strong growth rates. Contributing factors for each reportable segment are discussed below in further detail.

Temporary and consultant staffing services revenues were $3.93 billion for the year ended December 31, 2015, increasing by 6.9% compared to revenues of $3.68 billion for the year ended December 31, 2014. Key drivers of temporary and consultant staffing services revenues include average hourly bill rates and the number of hours worked by the Company’s temporary employees on client engagements. On a same-day, constant-currency basis, temporary and consultant staffing services revenues increased 10.3% for 2015, compared to 2014, due primarily to an increase in temporary hours worked by the Company's

17

temporary employees and inclusive of a 4.5% increase in average bill rates. In the U.S., 2015 revenues increased 11.5% on an as reported basis and 11.4% on a same-day basis, compared to 2014. For the Company’s international operations, 2015 revenues decreased 8.9% on an as reported basis and increased 6.4% on a same-day, constant-currency basis, compared to 2014.

Permanent placement staffing revenues were $421 million for the year ended December 31, 2015, increasing by 6.8% compared to revenues of $395 million for the year ended December 31, 2014. Key drivers of permanent placement staffing revenues consist of the number of candidate placements and average fees earned per placement. On a same-day, constant-currency basis, permanent placement revenues increased 11.7% for 2015 compared to 2014. In the U.S., 2015 revenues increased 15.5% on an as reported basis and 15.4% on a same-day basis, compared to 2014. For the Company’s international operations, 2015 revenues decreased 9.3% on an as reported basis, and on a same-day, constant-currency basis increased 4.9%, compared to 2014, driven primarily by an increase in number of placements. Historically, demand for permanent placement services is even more sensitive to economic and labor market conditions than demand for temporary and consulting staffing services and this is expected to continue.

Risk consulting and internal audit services revenues were $743 million for the year ended December 31, 2015, increasing by 19.0% compared to revenues of $624 million for the year ended December 31, 2014. Key drivers of risk consulting and internal audit services revenues are the billable hours worked by consultants on client engagements and average hourly bill rates. On a same-day, constant-currency basis, risk consulting and internal audit services revenues increased 21.8% for 2015 compared to 2014, due primarily to an increase in billable hours worked. In the U.S., 2015 revenues increased 22.3% on an as reported basis, or 22.5% on a same-day basis, compared to 2014. For the Company’s international operations, 2015 revenues increased 4.0% on an as reported basis, and on a same-day, constant-currency basis increased 18.7%, compared to 2014.

A reconciliation of the non-GAAP year-over-year revenue growth rates to the as reported year-over-year revenue growth rates for the year ended December 31, 2015, is presented in the following table:

	Global			United States			International
Temporary and consultant staffing
As Reported		6.9	%		11.5	%		-8.9	%
Billing Days Impact		0.0	%		-0.1	%		-0.1	%
Currency Impact		3.4	%		—			15.4	%
Same Billing Days and Constant Currency		10.3	%		11.4	%		6.4	%
Permanent placement staffing
As Reported		6.8	%		15.5	%		-9.3	%
Billing Days Impact		-0.1	%		-0.1	%		0.0	%
Currency Impact		5.0	%		—			14.2	%
Same Billing Days and Constant Currency		11.7	%		15.4	%		4.9	%
Risk consulting and internal audit services
As Reported		19.0	%		22.3	%		4.0	%
Billing Days Impact		0.1	%		0.2	%		0.2	%
Currency Impact		2.7	%		—			14.5	%
Same Billing Days and Constant Currency		21.8	%		22.5	%		18.7	%

Gross Margin.    The Company’s gross margin dollars were $2.11 billion for the year ended December 31, 2015, up 10.0% from $1.92 billion for the year ended December 31, 2014. For 2015 compared to 2014, gross margin dollars for all three of the Company’s reportable segments increased. Gross margin dollars as a percentage of revenues increased for both the Company’s temporary and consultant staffing services segment and the risk consulting and internal audit services segment on a year-over-year basis. Contributing factors for each reportable segment are discussed below in further detail.

Gross margin dollars from the Company’s temporary and consultant staffing services represent revenues less direct costs of services, which consist of payroll, payroll taxes and benefit costs for temporary employees, and reimbursable expenses. The

key drivers of gross margin are: i) pay/bill spreads, which represent the differential between wages paid to temporary

employees and amounts billed to clients; ii) fringe costs, which are primarily composed of payroll taxes and benefit costs for

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temporary and consultant staffing employees; and iii) conversion revenues, which are earned when a temporary position

converts to a permanent position with the Company's client. Gross margin dollars for the Company’s temporary and consultant staffing services division were $1.46 billion for the year ended December 31, 2015, up 8.8% from $1.35 billion for the year ended December 31, 2014. As a percentage of revenues, gross margin dollars for temporary and consultant staffing services were 37.2% in 2015, up from 36.6% in 2014. This year-over-year improvement in gross margin percentage of 0.6% was primarily attributable to higher pay/bill spreads and lower fringe costs driven by lower state unemployment insurance expenses in 2015 compared to 2014.

Gross margin dollars from permanent placement staffing services represent revenues less reimbursable expenses. Gross margin dollars for the Company’s permanent placement staffing division were $421 million for the year ended December 31, 2015, up 6.7% from $394 million for the year ended December 31, 2014. Because reimbursable expenses for permanent placement staffing services are de minimis, the increase in gross margin dollars is substantially explained by the increase in revenues previously discussed.

Gross margin dollars for risk consulting and internal audit services represent revenues less direct costs of services, which consist primarily of professional staff payroll, payroll taxes, benefit costs and reimbursable expenses. The primary drivers of

risk consulting and internal audit services gross margin are: i) the relative composition of and number of professional staff and

their respective pay and bill rates; and ii) staff utilization, which is the relationship of time spent on client engagements in

proportion to the total time available for the Company’s risk consulting and internal audit services staff. Gross margin dollars for the Company’s risk consulting and internal audit division were $230 million for the year ended December 31, 2015, up 25.6% from $183 million for the year ended December 31, 2014. As a percentage of revenues, gross margin dollars for risk consulting and internal audit services were 31.0% in 2015, up from 29.4% in 2014. The improvement in 2015 compared to 2014 was due to a better alignment of the mix of professional staff relative to client demand.

Selling, General and Administrative Expenses.    The Company’s selling, general and administrative expenses consist primarily of staff compensation, advertising, depreciation and occupancy costs. The Company’s selling, general and administrative expenses were $1.53 billion for the year ended December 31, 2015, up 7.6% from $1.43 billion for the year ended December 31, 2014. As a percentage of revenues, the Company’s selling, general and administrative expenses were 30.1% for 2015, down from 30.4% for 2014. In 2015, selling, general and administrative expenses increased for all three of the Company’s reportable segments compared to 2014. As percentage of revenue, selling, general and administrative expenses for the Company’s permanent placement staffing and risk consulting and internal audit services divisions decreased in 2015 compared to 2014, however for the temporary and consulting staffing division, selling, general and administrative expenses increased as a percentage of revenue. Contributing factors for each reportable segment are discussed below in further detail.

Selling, general and administrative expenses for the Company’s temporary and consultant staffing services division were $1.06 billion for the year ended December 31, 2015, up 7.8% from $987 million for the year ended December 31, 2014. As a percentage of revenues, selling, general and administrative expenses for temporary and consultant staffing services were 27.1% in 2015, up from 26.8% in 2014. For 2015 compared to 2014, the increase in selling, general and administrative expenses as a percentage of revenue is primarily due to an increase in field compensation expense and variable overhead, partially offset by a decrease in admin compensation and fixed overhead.

Selling, general and administrative expenses for the Company’s permanent placement staffing division were $336 million for the year ended December 31, 2015, up 6.2% from $316 million for the year ended December 31, 2014. As a percentage of revenues, selling, general and administrative expenses for permanent placement staffing services were 79.7% in 2015, down from 80.1% in 2014. For 2015 compared to 2014, decreases in fixed overhead and variable overhead, partially offset by an increase in field compensation drove the overall decrease as a percentage of revenues.

Selling, general and administrative expenses for the Company’s risk consulting and internal audit services division were $134 million for the year ended December 31, 2015, up 9.3% from $123 million for the year ended December 31, 2014. As a percentage of revenues, selling, general and administrative expenses for risk consulting and internal audit services were 18.1% in 2015, down from 19.7% in 2014. For 2015 compared to 2014, improved leverage of general and administrative expenses, as a result of higher revenue, drove the overall decrease as a percentage of revenues.

Operating Income.    The Company’s total operating income was $581 million, or 11.4% of revenues, for the year ended December 31, 2015, up 16.8% from $497 million, or 10.6% of revenues, for the year ended December 31, 2014. For the Company’s temporary and consultant staffing services division, operating income was $400 million, or 10.2% of applicable revenues, up 11.5% from $359 million, or 9.8% of applicable revenues, in 2014. For the Company’s permanent placement

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staffing division, operating income was $85 million, or 20.2% of applicable revenues, up 8.5% from operating income of $78 million, or 19.9% of applicable revenues, in 2014. For the Company’s risk consulting and internal audit services division, operating income was $96 million, or 12.9% of applicable revenues, up 58.9% from operating income of $60 million, or 9.7% of applicable revenues, in 2014.

Provision for income taxes.    The provision for income taxes was relatively consistent at 38.4% and 38.5% for the years ended December 31, 2015 and 2014, respectively.

Years ended December 31, 2014 and 2013

Revenues. The Company’s revenues were $4.70 billion for the year ended December 31, 2014, increasing by 10.6% compared to $4.25 billion for the year ended December 31, 2013. Revenues from foreign operations represented 23% and 24% of total revenues for the years ended December 31, 2014 and 2013, respectively. The Company analyzes its revenues for three reportable segments: temporary and consultant staffing, permanent placement staffing and risk consulting and internal audit

services. In 2014, revenues for all three of the Company’s reportable segments were up compared to 2013. Results were strongest domestically with broad-based revenue expansion across the Company’s staffing and consulting operations. Contributing factors for each reportable segment are discussed below in further detail.

Temporary and consultant staffing services revenues were $3.68 billion for the year ended December 31, 2014, increasing by 9.1% compared to revenues of $3.37 billion for the year ended December 31, 2013. Key drivers of temporary and consultant staffing services revenues include average hourly bill rates and hours worked by the Company's temporary employees on client engagements. On a same-day, constant-currency basis, temporary and consultant staffing services revenues increased 9.5% for 2014 compared to 2013, due primarily to an increase in temporary hours worked by the Company's temporary employees and inclusive of a 3.2% increase in average bill rates. In the U.S., 2014 revenues increased 10.6% on both an as reported and a same-day basis, compared to 2013. For the Company’s international operations, 2014 revenues increased 4.2% and on a same-day, constant-currency basis increased 5.9%, compared to 2013.

Permanent placement staffing revenues were $395 million for the year ended December 31, 2014, increasing by 13.5%

compared to revenues of $348 million for the year ended December 31, 2013. Key drivers of permanent placement staffing revenues consist of number of candidate placements and average fees earned per placement. On a same-day, constant-currency basis, permanent placement revenues increased 14.3% for 2014 compared to 2013. In the U.S., 2014 revenues increased 17.8% on both an as reported and same-day basis, compared to 2013, driven primarily by an increase in number of placements. Historically, demand for permanent placement services is even more sensitive to economic and labor market conditions than demand for temporary and consulting staffing services and this is expected to continue. For the Company’s international operations, 2014 revenues increased 6.3%, and on a same-day, constant-currency basis increased 8.5%, compared to 2013.

Risk consulting and internal audit services revenues were $624 million for the year ended December 31, 2014, increasing by 18.1% compared to revenues of $528 million for the year ended December 31, 2013. Key drivers of risk consulting and internal audit services revenues are the billable hours worked by consultants on client engagements and average

hourly bill rates. On a same-day, constant-currency basis, risk consulting and internal audit services revenues increased 17.5% for 2014 compared to 2013, due primarily to an increase in billable hours worked. In the U.S., 2014 revenues increased 21.9%, or 21.0% on a same-day basis, compared to 2013. For the Company’s international operations, 2014 revenues increased 3.8% and on a same-day, constant-currency basis increased 4.1%, compared to 2013.

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A reconciliation of the non-GAAP year-over-year revenue growth rates to the as reported year-over-year revenue growth rates for the year ended December 31, 2014, is presented in the following table:

	Global			United States			International
Temporary and consultant staffing
As Reported		9.1	%		10.6	%		4.2	%
Billing Days Impact		0.0	%		0.0	%		0.0	%
Currency Impact		0.4	%		—			1.7	%
Same Billing Days and Constant Currency		9.5	%		10.6	%		5.9	%
Permanent placement staffing
As Reported		13.5	%		17.8	%		6.3	%
Billing Days Impact		0.0	%		0.0	%		0.0	%
Currency Impact		0.8	%		—			2.2	%
Same Billing Days and Constant Currency		14.3	%		17.8	%		8.5	%
Risk consulting and internal audit services
As Reported		18.1	%		21.9	%		3.8	%
Billing Days Impact		-0.8	%		-0.9	%		-0.8	%
Currency Impact		0.2	%		—			1.1	%
Same Billing Days and Constant Currency		17.5	%		21.0	%		4.1	%

Gross Margin.    The Company’s gross margin dollars were $1.92 billion for the year ended December 31, 2014, up

11.6% from $1.72 billion for the year ended December 31, 2013. For 2014 compared to 2013, gross margin dollars for all three

of the Company’s reportable segments increased. Gross margin dollars as a percentage of revenues increased for both the Company’s temporary and consultant staffing services segment and the risk consulting and internal audit services segment on a year-over-year basis. Contributing factors for each reportable segment are discussed below in further detail.

Gross margin dollars from the Company’s temporary and consultant staffing services represent revenues less direct costs of services, which consist of payroll, payroll taxes and benefit costs for temporary employees, and reimbursable expenses.The key drivers of gross margin are: i) pay/bill spreads, which represent the differential between wages paid to temporary employees and amounts billed to clients; ii) fringe costs, which are primarily composed of payroll taxes and benefit costs for

temporary and consultant staffing employees; and iii) conversion revenues, which are earned when a temporary position converts to a permanent position with the Company's client. Gross margin dollars for the Company’s temporary and consultant staffing services division were $1.35 billion for the year ended December 31, 2014 , up 10.2% from $1.22 billion for the year ended December 31, 2013. As a percentage of revenues, gross margin dollars for temporary and consultant staffing services were 36.6% in 2014, up from 36.2% in 2013. This year-over-year improvement in gross margin percentage of 0.4% was primarily attributable to lower fringe costs driven by lower state unemployment insurance expenses in 2014 compared to 2013.

Gross margin dollars from permanent placement staffing services represent revenues less reimbursable expenses. Gross

margin dollars for the Company’s permanent placement staffing division were $394 million for the year ended December 31, 2014, up 13.5% from $348 million for the year ended December 31, 2013. Because reimbursable expenses for permanent placement staffing services are de minimis, the increase in gross margin dollars is substantially explained by the increase in

revenues previously discussed.

Gross margin dollars for risk consulting and internal audit services represent revenues less direct costs of services, which consist primarily of professional staff payroll, payroll taxes, benefit costs and reimbursable expenses. The primary drivers of

risk consulting and internal audit services gross margin are: i) the relative composition of and number of professional staff and

their respective pay and bill rates; and ii) staff utilization, which is the relationship of time spent on client engagements in

proportion to the total time available for the Company’s risk consulting and internal audit services staff. Gross margin dollars for the Company’s risk consulting and internal audit division were $183 million for the year ended December 31, 2014, up 18.5% from $155 million for the year ended December 31, 2013. As a percentage of revenues, gross margin dollars for risk consulting and internal audit services were 29.4% in 2014, up from 29.3% in 2013. The increase in 2014 gross margin

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percentage was primarily the result of higher staff utilization rates. The slight improvement in 2014 was due to a better alignment of the mix of professional staff relative to client demand.

Selling, General and Administrative Expenses. The Company’s selling, general and administrative expenses consist

primarily of staff compensation, advertising, depreciation and occupancy costs. The Company’s selling, general and

administrative expenses were $1.43 billion for the year ended December 31, 2014, up 7.6% from $1.32 billion for the year

ended December 31, 2013. As a percentage of revenues, the Company’s selling, general and administrative expenses were

30.4% for 2014, down from 31.2% for 2013. In 2014, selling, general and administrative expenses increased for all three of the

Company’s reportable segments compared to 2013. As percentage of revenue, selling, general and administrative expenses for

all three of the Company’s reportable segments decreased in 2014 compared to 2013. Contributing factors for each reportable

segment are discussed below in further detail.

Selling, general and administrative expenses for the Company’s temporary and consultant staffing services division were

$987 million for the year ended December 31, 2014, up 7.3% from $920 million for the year ended December 31, 2013. As a

percentage of revenues, selling, general and administrative expenses for temporary and consultant staffing services were 26.8%

in 2014, down from 27.3% in 2013. For 2014 compared to 2013, the decrease in selling, general and administrative expenses as

a percentage of revenue is primarily due to an improvement in leverage resulting from higher revenue in 2014 .

Selling, general and administrative expenses for the Company’s permanent placement staffing division were $316 million for the year ended December 31, 2014, up 7.8% from $293 million for the year ended December 31, 2013. As a percentage of revenues, selling, general and administrative expenses for permanent placement staffing services were 80.1% in 2014, down from 84.3% in 2013. For 2014 compared to 2013, decreases in field compensation, administrative compensation and fixed overhead drove the overall decrease as a percentage of revenues.

Selling, general and administrative expenses for the Company’s risk consulting and internal audit services division were

$123 million for the year ended December 31, 2014, up 9.8% from $112 million for the year ended December 31, 2013. As a

percentage of revenues, selling, general and administrative expenses for risk consulting and internal audit services were 19.7%

in 2014, down from 21.2% in 2013. For 2014 compared to 2013, improved leverage in general and administrative expenses, as

a result of higher revenue, drove the overall decrease as a percentage of revenues.

Operating Income. The Company’s total operating income was $497 million, or 10.6% of revenues, for the year ended

December 31, 2014, up 24.8% from $398 million, or 9.4% of revenues, for the year ended December 31, 2013. For the

Company’s temporary and consultant staffing services division, operating income was $359 million, or 9.8% of applicable

revenues, up 19.0% from $301 million, or 8.9% of applicable revenues, in 2013. For the Company’s permanent placement

staffing division, operating income was $78 million, or 19.9% of applicable revenues, up 44.0% from operating income of $54 million, or 15.6% of applicable revenues, in 2013. For the Company’s risk consulting and internal audit services division,

operating income was $60 million, or 9.7% of applicable revenues, up 41.2% from operating income of $43 million, or 8.1% of

applicable revenues, in 2013.

Provision for income taxes. The provision for income taxes was 38.5% and 36.6% for the years ended December 31,

2014 and 2013, respectively. The 2014 increase is primarily due to fewer available foreign tax benefits and a decrease in federal

tax credits.

Liquidity and Capital Resources

The change in the Company’s liquidity during the years ended December 31, 2015, 2014 and 2013, is primarily the net effect of funds generated by operations and the funds used for capital expenditures, repurchases of common stock and payment of dividends.

Cash and cash equivalents were $225 million, $287 million and $276 million at December 31, 2015, 2014 and 2013, respectively. Operating activities provided $438 million during the year ended December 31, 2015, offset by $118 million and $369 million of net cash used in investing activities and financing activities, respectively. Operating activities provided $341 million during the year ended December 31, 2014, offset by $89 million and $230 million of net cash used in investing activities and financing activities, respectively. Operating activities provided $309 million during the year ended December 31, 2013, offset by $98 million and $220 million of net cash used in investing activities and financing activities, respectively.

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Operating activities—Net cash provided by operating activities for the year ended December 31, 2015, was $438 million. This was composed of net income of $358 million adjusted upward for non-cash items of $89 million, offset by net cash used in changes in working capital of $9 million. Net cash provided by operating activities for the year ended December 31, 2014, was composed of net income of $306 million adjusted for non-cash items of $90 million, offset by net cash used in changes in working capital of $55 million. Net cash provided by operating activities for the year ended December 31, 2013, was composed of net income of $252 million adjusted for non-cash items of $74 million, and net cash provided by changes in working capital of $17 million.

Investing activities—Cash used in investing activities for the year ended December 31, 2015, was $118 million. This was composed of capital expenditures of $75 million, deposits to trusts for employee deferred compensation plans of $28 million, and payment for an acquisition, net of cash acquired, of $15 million. Cash used in investing activities for the year ended December 31, 2014, was $89 million. This was primarily composed of capital expenditures of $63 million and deposits to trusts for employee deferred compensation plans of $26 million. Cash used in investing activities for the year ended December 31, 2013, was $98 million. This was primarily composed of capital expenditures of $54 million and deposits to trusts for employee deferred compensation plans of $44 million.

Financing activities—Cash used in financing activities for the year ended December 31, 2015, was $369 million. This included repurchases of $271 million in common stock and $108 million in cash dividends to stockholders, offset by the proceeds of $2 million from exercises of stock options and the excess tax benefits from stock-based compensation of $9 million. Cash used in financing activities for the year ended December 31, 2014, was $230 million. This included repurchases of $154 million in common stock and $97 million in cash dividends to stockholders, offset by the proceeds of $14 million from exercises of stock options and the excess tax benefits from stock-based compensation of $7 million. Cash used in financing activities for the year ended December 31, 2013, was $220 million. This included repurchases of $168 million in common stock, $89 million in cash dividends to stockholders and $4 million of payments of notes payable and other indebtedness, offset by proceeds of $33 million from exercises of stock options and the excess tax benefits from stock-based compensation of $8 million.

As of December 31, 2015, the Company is authorized to repurchase, from time to time, up to 10.4 million additional shares of the Company’s common stock on the open market or in privately negotiated transactions, depending on market conditions. During the years ended December 31, 2015, 2014 and 2013, the Company repurchased approximately 4.3 million shares, 3.3 million shares and 3.3 million shares of common stock on the open market for a total cost of $228 million, $162 million and $118 million, respectively. Additional stock repurchases were made in connection with employee stock plans, whereby Company shares were tendered by employees for the payment of exercise price and applicable statutory withholding taxes. During the years ended December 31, 2015, 2014 and 2013, such repurchases totaled approximately 0.5 million shares, 0.5 million shares and 1.2 million shares at a cost of $25 million, $22 million and $44 million, respectively. Repurchases of shares have been funded with cash generated from operations.

The Company’s working capital at December 31, 2015, included $225 million in cash and cash equivalents. The Company expects that internally generated cash will be sufficient to support the working capital needs of the Company, the Company’s fixed payments, dividends, and other obligations on both a short-term and long-term basis.

On February 11, 2016, the Company announced a quarterly dividend of $.22 per share to be paid to all shareholders of record on February 25, 2016. The dividend will be paid on March 15, 2016.

The Company’s cash flows generated from operations are also the primary source for funding various contractual obligations. The table below summarizes the Company’s major commitments as of December 31, 2015 (in thousands):

	Payments due by period
Contractual Obligations	2016		2017 and 2018		2019 and 2020		Thereafter		Total
Long-term debt obligations	$	252	$	505	$	505	$	252	$	1,514
Operating lease obligations	88,177		131,364		80,431		81,437		381,409
Purchase obligations	42,044		28,772		2,840		—		73,656
Other liabilities	1,062		1,853		669		6,493		10,077
Total	$	131,535	$	162,494	$	84,445	$	88,182	$	466,656

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Long-term debt obligations consist of promissory notes and related interest as well as other forms of indebtedness issued in connection with certain acquisitions and other payment obligations. Operating lease obligations consist of minimum rental commitments for 2016 and thereafter under non-cancelable leases in effect at December 31, 2015. Purchase obligations consist of purchase commitments primarily related to telecom service agreements, software licenses and subscriptions, and computer hardware and software maintenance agreements. Other liabilities consist of asset retirement and deferred compensation obligations.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Because a portion of the Company’s net revenues are derived from its operations outside the U.S. and are denominated in

local currencies, the Company is exposed to the impact of foreign currency fluctuations. The Company’s exposure to foreign currency exchange rates relates primarily to the Company’s foreign subsidiaries. Exchange rates impact the U.S. dollar value of the Company’s reported revenues, expenses, earnings, assets and liabilities.

For the year ended December 31, 2015, approximately 19% of the Company’s revenues were generated outside of the United States. These operations transact business in their functional currency, which is the same as their local currency. As a result, fluctuations in the value of foreign currencies against the U.S. dollar, particularly the Canadian dollar, British pound, Euro, and Australian dollar have an impact on the Company’s reported results. Under GAAP, revenues and expenses denominated in foreign currencies are translated into U.S. dollars at the monthly average exchange rates prevailing during the period. Consequently, as the value of the U.S. dollar changes relative to the currencies of the Company’s non-U.S. markets, the Company’s reported results vary.

During 2015, the U.S. dollar fluctuated, but generally strengthened, against the primary currencies in which the Company conducts business. Currency exchange rates had the effect of decreasing reported net service revenues by $162 million, or 3.5%, in 2015 compared to prior year. The general strengthening of the U.S. dollar also affected the reported level of expenses incurred in the Company's foreign operations. Because substantially all of the Company's foreign operations generated revenues and incurred expenses within the same country and currency, the favorable effect of lower reported operating expenses largely offset the decline in reported revenues. Reported net income was $6.6 million, or 2.2%, lower in the year ended December 31, 2015 compared to prior year due to the effect of currency exchange rates.

For the month ended January 31, 2016, the U.S. dollar strengthened against the Euro, British Pound, Canadian Dollar, and Australian dollar. If currency exchange rates were to remain at January 2016 levels throughout 2016, the Company’s 2016 full-year reported revenues would be impacted unfavorably, mostly offset by a favorable impact to operating expenses. Thus, the impact to reported net income would likely be immaterial.

Fluctuations in currency exchange rates impact the U.S. dollar amount of the Company’s stockholders’ equity. The assets and liabilities of the Company’s non-U.S. subsidiaries are translated into U.S. dollars at the exchange rates in effect at period end. The resulting translation adjustments are recorded in stockholders’ equity as a component of accumulated other comprehensive income. Although currency fluctuations impact the Company’s reported results and shareholders’ equity, such fluctuations generally do not affect cash flow or result in actual economic gains or losses. The Company generally has few cross-border transfers of funds, except for transfers to the U.S. for payment of intercompany loans, working capital loans made between the U.S. and the Company’s foreign subsidiaries, and dividends from the Company’s foreign subsidiaries.

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Item 8. Financial Statements and Supplementary Data

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

(in thousands, except share amounts)

	December 31,
	2015			2014
ASSETS
Cash and cash equivalents	$	224,577		$	287,119
Accounts receivable, less allowances of $35,087 and $30,544	704,640			657,676
Current deferred income taxes	145,684			133,151
Other current assets	268,780			245,337
Total current assets	1,343,681			1,323,283
Goodwill	208,579			199,488
Other intangible assets, net	4,508			—
Property and equipment, net	142,906			121,754
Other assets	3,286			2,742
Total assets	$	1,702,960		$	1,647,267
LIABILITIES
Accounts payable and accrued expenses	$	148,108		$	175,107
Accrued payroll and benefit costs	504,782			448,115
Income taxes payable	2,506			—
Current portion of notes payable and other indebtedness	153			140
Total current liabilities	655,549			623,362
Notes payable and other indebtedness, less current portion	1,007			1,159
Other liabilities	42,623			42,888
Total liabilities	699,179			667,409
Commitments and Contingencies (Note I)
STOCKHOLDERS’ EQUITY
Preferred stock, $.001 par value authorized 5,000,000 shares; issued and outstanding zero shares	—			—
Common stock, $.001 par value authorized 260,000,000 shares; issued and outstanding 131,156,064 and 135,134,064 shares	131			135
Capital surplus	979,477			928,157
Accumulated other comprehensive (loss) income	(10,294		)	14,730
Retained earnings	34,467			36,836
Total stockholders’ equity	1,003,781			979,858
Total liabilities and stockholders’ equity	$	1,702,960		$	1,647,267

The accompanying Notes to Consolidated Financial Statements

are an integral part of these financial statements.

25

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share amounts)

	Years Ended December 31,
	2015			2014			2013
Net service revenues	$	5,094,933		$	4,695,014		$	4,245,895
Direct costs of services, consisting of payroll, payroll taxes, benefit costs and reimbursable expenses	2,980,462			2,772,098			2,522,803
Gross margin	2,114,471			1,922,916			1,723,092
Selling, general and administrative expenses	1,533,799			1,425,734			1,324,815
Amortization of intangible assets	192			557			1,700
Interest income, net	(550		)	(724		)	(1,002		)
Income before income taxes	581,030			497,349			397,579
Provision for income taxes	223,234			191,421			145,384
Net income	$	357,796		$	305,928		$	252,195
Net income available to common stockholders—diluted	$	357,796		$	305,928		$	252,192
Net income per share (Note L):
Basic	$	2.72		$	2.28		$	1.85
Diluted	$	2.69		$	2.26		$	1.83
Shares:
Basic	131,749			134,358			136,153
Diluted	132,930			135,541			137,589
Cash dividends declared per share	$	.80		$	.72		$	.64

The accompanying Notes to Consolidated Financial Statements

are an integral part of these financial statements.

26

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

	Years Ended December 31,
	2015			2014			2013
COMPREHENSIVE INCOME:
Net income	$	357,796		$	305,928		$	252,195
Foreign currency translation adjustments, net of tax	(25,024		)	(23,341		)	(5,708		)
Total comprehensive income	$	332,772		$	282,587		$	246,487

The accompanying Notes to Consolidated Financial Statements

are an integral part of these financial statements.

27

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands, except per share amounts)

	Years Ended December 31,
	2015			2014			2013
COMMON STOCK—SHARES:
Balance at beginning of period	135,134			137,466			139,439
Net issuances of restricted stock	785			938			1,091
Repurchases of common stock	(4,817		)	(3,798		)	(4,461		)
Exercises of stock options	54			528			1,397
Balance at end of period	131,156			135,134			137,466
COMMON STOCK—PAR VALUE:
Balance at beginning of period	$	135		$	137		$	139
Net issuances of restricted stock	1			1			1
Repurchases of common stock	(5		)	(4		)	(4		)
Exercises of stock options	—			1			1
Balance at end of period	$	131		$	135		$	137
CAPITAL SURPLUS:
Balance at beginning of period	$	928,157		$	868,120		$	798,093
Net issuances of restricted stock at par value	(1		)	(1		)	(1		)
Cash dividends ($.64 per share)	—			—			(12,256		)
Stock-based compensation expense	41,292			40,821			38,867
Exercises of stock options—excess over par value	1,529			14,323			33,285
Tax impact of equity incentive plans	8,500			4,894			10,132
Balance at end of period	$	979,477		$	928,157		$	868,120
ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME:
Balance at beginning of period	$	14,730		$	38,071		$	43,779
Foreign currency translation adjustments, net of tax	(25,024		)	(23,341		)	(5,708		)
Balance at end of period	$	(10,294	)	$	14,730		$	38,071
RETAINED EARNINGS:
Balance at beginning of period	$	36,836		$	13,315		$	—
Net income	357,796			305,928			252,195
Repurchases of common stock—excess over par value	(252,916		)	(183,969		)	(162,029		)
Cash dividends ($.80 per share, $.72 per share and $.64 per share)	(107,249		)	(98,438		)	(76,851		)
Balance at end of period	$	34,467		$	36,836		$	13,315

The accompanying Notes to Consolidated Financial Statements

are an integral part of these financial statements.

28

ROBERT HALF INTERNATIONAL INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Years Ended December 31,
	2015			2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	357,796		$	305,928		$	252,195
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	192			557			1,700
Depreciation expense	53,273			49,124			47,072
Stock-based compensation expense—restricted stock and stock units	41,292			40,821			38,867
Excess tax benefits from stock-based compensation	(8,762		)	(7,174		)	(8,103		)
Deferred income taxes	(8,579		)	(3,643		)	(13,259		)
Provision for doubtful accounts	12,005			9,825			7,467
Changes in assets and liabilities, net of effects of acquisitions:
Increase in accounts receivable	(75,745		)	(134,917		)	(47,699		)
Increase in accounts payable, accrued expenses, accrued payroll and benefit costs	60,232			71,740			38,356
Increase (decrease) in income taxes payable	19,948			16,359			(11,927		)
Change in other assets, net of change in other liabilities	(13,416		)	(7,922		)	4,548
Net cash flows provided by operating activities	438,236			340,698			309,217
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments for acquisitions, net of cash acquired	(14,668		)	—			—
Capital expenditures	(75,057		)	(62,830		)	(53,725		)
Payments to trusts for employee deferred compensation plans	(28,225		)	(25,811		)	(44,052		)
Net cash flows used in investing activities	(117,950		)	(88,641		)	(97,777		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchases of common stock	(271,138		)	(153,821		)	(167,975		)
Cash dividends paid	(107,561		)	(97,604		)	(89,187		)
Decrease in notes payable and other indebtedness	(140		)	(128		)	(4,496		)
Excess tax benefits from stock-based compensation	8,762			7,174			8,103
Proceeds from exercises of stock options	1,529			14,324			33,285
Net cash flows used in financing activities	(368,548		)	(230,055		)	(220,270		)
Effect of exchange rate changes on cash and cash equivalents	(14,280		)	(10,647		)	(3,041		)
Net (decrease) increase in cash and cash equivalents	(62,542		)	11,355			(11,871		)
Cash and cash equivalents at beginning of period	287,119			275,764			287,635
Cash and cash equivalents at end of period	$	224,577		$	287,119		$	275,764
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the year for:
Interest	$	285		$	330		$	315
Income taxes, net of refunds	$	212,668		$	178,375		$	168,407
Non-cash items:
Stock repurchases awaiting settlement	$	11,935		$	30,152		$	—

The accompanying Notes to Consolidated Financial Statements

are an integral part of these financial statements.

29

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note A—Summary of Significant Accounting Policies

Nature of Operations.    Robert Half International Inc. (the “Company”) provides specialized staffing and risk consulting services through such divisions as Accountemps^®, Robert Half^® Finance & Accounting, OfficeTeam^®, Robert Half^® Technology, Robert Half^® Management Resources, Robert Half^® Legal, The Creative Group^®, and Protiviti^®. The Company, through its Accountemps, Robert Half Finance & Accounting, and Robert Half Management Resources divisions, is a specialized provider of temporary, full-time, and senior-level project professionals in the fields of accounting and finance. OfficeTeam specializes in highly skilled temporary administrative support professionals. Robert Half Technology provides project and full-time technology professionals. Robert Half Legal provides temporary, project, and full-time staffing of lawyers, paralegals and legal support personnel. The Creative Group provides interactive, design, marketing, advertising and public relations professionals. Protiviti is a global consulting firm that helps companies solve problems in finance, technology, operations, governance, risk and internal audit, and is a wholly owned subsidiary of the Company. Revenues are predominantly derived from specialized staffing services. The Company operates in North America, South America, Europe, Asia and Australia. The Company is a Delaware corporation.

Basis of Presentation.    The Consolidated Financial Statements (“Financial Statements”) of the Company are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and the rules of the Securities and Exchange Commission (“SEC”).

Principles of Consolidation.    The Financial Statements include the accounts of the Company and its subsidiaries, all of which are wholly owned. All intercompany balances have been eliminated.

Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. As of December 31, 2015, such estimates included allowances for uncollectible accounts receivable, workers’ compensation losses and income and other taxes. Management estimates are also utilized in the Company’s goodwill impairment assessment and in the valuation of stock grants subject to market conditions.

Revenue Recognition.    The Company derives its revenues from three segments: temporary and consultant staffing, permanent placement staffing, and risk consulting and internal audit services. Net service revenues as presented on the Consolidated Statements of Operations represent services rendered to customers less sales adjustments and allowances. Reimbursements, including those related to travel and out-of-pocket expenses, are also included in net service revenues, and equivalent amounts of reimbursable expenses are included in direct costs of services. The Company records revenue on a gross basis as a principal versus on a net basis as an agent in the presentation of revenues and expenses. The Company has concluded that gross reporting is appropriate because the Company (i) has the risk of identifying and hiring qualified employees, (ii) has the discretion to select the employees and establish their price and duties and (iii) bears the risk for services that are not fully paid for by customers.

Temporary and consultant staffing revenues—Temporary and consultant staffing revenues are recognized when the services are rendered by the Company’s temporary employees. Employees placed on temporary assignment by the Company are the Company’s legal employees while they are working on assignments. The Company pays all related costs of employment, including workers’ compensation insurance, state and federal unemployment taxes, social security and certain fringe benefits. The Company assumes the risk of acceptability of its employees to its customers.

Permanent placement staffing revenues—Permanent placement staffing revenues are recognized when employment candidates accept offers of permanent employment. The Company has a substantial history of estimating the effect of permanent placement candidates who do not remain with its clients through the 90-day guarantee period. Allowances are established to estimate these losses. Fees to clients are generally calculated as a percentage of the new employee’s annual compensation. No fees for permanent placement services are charged to employment candidates.

Risk consulting and internal audit revenues—Risk consulting and internal audit services are generally provided on a time-and-material basis or fixed-fee basis. Revenues earned under time-and-material arrangements are recognized as services are provided. Revenues on fixed-fee arrangements are recognized using a proportional performance method as hours are incurred relative to total estimated hours for the engagement. The Company periodically evaluates the need to provide for any losses on these projects, and losses are recognized when it is probable that a loss will be incurred.

Costs of Services.    Direct costs of temporary and consultant staffing services consist of payroll, payroll taxes and benefit costs for the Company’s temporary employees, as well as reimbursable expenses. Direct costs of permanent placement staffing

30

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note A—Summary of Significant Accounting Policies (continued)

services consist of reimbursable expenses. Risk consulting and internal audit costs of services include professional staff payroll, payroll taxes and benefit costs, as well as reimbursable expenses.

Advertising Costs.    The Company expenses all advertising costs as incurred. Advertising costs for the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Advertising Costs	$	44,015	$	42,335	$	38,845

Comprehensive Income.    Comprehensive income includes net income and certain other items that are recorded directly to Stockholders’ Equity. The Company’s only source of other comprehensive income is foreign currency translation adjustments.

Fair Value of Financial Instruments.    The Company does not have any financial instruments which require re-measurement to fair value. The carrying values of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses represent fair value based upon their short-term nature.

Cash and Cash Equivalents.    The Company considers all highly liquid investments with a maturity at the date of purchase of three months or less as cash equivalents.

Goodwill and Intangible Assets.    Goodwill and intangible assets primarily consist of the cost of acquired companies in excess of the fair market value of their net tangible assets at the date of acquisition. Identifiable intangible assets are amortized over their lives, typically ranging from two to five years. Goodwill is not amortized, but is tested at least annually for impairment. The Company completed its annual goodwill impairment analysis as of June 30 in each of the three years ended December 31, 2015, and determined that no adjustment to the carrying value of goodwill was required. There were no events or changes in circumstances during the six months ended December 31, 2015 that caused the Company to perform an interim impairment assessment.

Income Tax Assets and Liabilities.    In establishing its deferred income tax assets and liabilities, the Company makes judgments and interpretations based on the enacted tax laws and published tax guidance that are applicable to its operations. Deferred tax assets and liabilities are measured and recorded using current enacted tax rates, which the Company expects will apply to taxable income in the years in which those temporary differences are recovered or settled. The likelihood of a material change in the Company’s expected realization of these assets is dependent on future taxable income, its ability to use foreign tax credit carryforwards and carrybacks, final U.S. and foreign tax settlements, and the effectiveness of its tax planning strategies in the various relevant jurisdictions.

The Company also evaluates the need for valuation allowances to reduce the deferred tax assets to realizable amounts. Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to offset future tax benefits that may not be realized. Valuation allowances of $26.3 million and $29.6 million were recorded as of December 31, 2015 and 2014, respectively. The valuation allowances recorded related primarily to net operating losses in certain foreign operations. If such losses are ultimately utilized to offset future operating income, the Company will recognize a tax benefit up to the full amount of the valuation reserve.

Workers’ Compensation.    Except for states which require participation in state-operated insurance funds, the Company retains the economic burden for the first $0.5 million per occurrence in workers’ compensation claims. Workers’ compensation includes ongoing healthcare and indemnity coverage for claims and may be paid over numerous years following the date of injury. Claims in excess of $0.5 million are insured. Workers’ compensation expense includes the insurance premiums for claims in excess of $0.5 million, claims administration fees charged by the Company’s workers’ compensation administrator, premiums paid to state-operated insurance funds, and an estimate for the Company’s liability for Incurred But Not Reported (“IBNR”) claims and for the ongoing development of existing claims.

31

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note A—Summary of Significant Accounting Policies (continued)

The reserves for IBNR claims and for the ongoing development of existing claims in each reporting period includes estimates. The Company has established reserves for workers’ compensation claims using loss development rates which are estimated using periodic third party actuarial valuations based upon historical loss statistics which include the Company’s historical frequency and severity of workers’ compensation claims, and an estimate of future cost trends. While management believes that its assumptions and estimates are appropriate, significant differences in actual experience or significant changes in assumptions may materially affect the Company’s future results.

Foreign Currency Translation.    The results of operations of the Company’s foreign subsidiaries are translated at the monthly average exchange rates prevailing during the period. The financial position of the Company’s foreign subsidiaries is translated at the current exchange rates at the end of the period, and the related translation adjustments are recorded as a component of accumulated other comprehensive income within Stockholders’ Equity. Gains and losses resulting from foreign currency transactions are included as a component of selling, general and administrative expenses in the Consolidated Statements of Operations, and have not been material for all periods presented.

Stock-based Compensation.    Under various stock plans, officers, employees and outside directors have received or may receive grants of restricted stock, stock units, stock appreciation rights or options to purchase common stock.

The Company recognizes compensation expense equal to the grant-date fair value for all stock-based payment awards that are expected to vest. This expense is recorded on a straight-line basis over the requisite service period of the entire award, unless the awards are subject to performance conditions, in which case the Company recognizes compensation expense over the requisite service period of each separate vesting tranche. The Company determines the grant-date fair value of its restricted stock and stock unit awards using the fair market value of its stock on the grant date, unless the awards are subject to market conditions, in which case the Company utilizes a binomial-lattice model (i.e., Monte Carlo simulation model). The Monte Carlo simulation model utilizes multiple input variables to determine the stock-based compensation expense.

No stock appreciation rights have been granted under the Company’s existing stock plans. The Company has not granted any options to purchase common stock since 2006.

Property and Equipment.    Property and equipment are recorded at cost. Depreciation expense is computed using the straight-line method over the following useful lives:

Computer hardware	2 to 3 years
Computer software	2 to 5 years
Furniture and equipment	5 years
Leasehold improvements	Term of lease, 5 years maximum

Internal-use Software.    The Company capitalizes direct costs incurred in the development of internal-use software. Amounts capitalized are reported as a component of computer software within property and equipment. Internal-use software development costs capitalized for the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Internal-use software development costs	$	31,964	$	24,367	$	13,027

32

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note B—New Accounting Pronouncements

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. In April 2014, the Financial Accounting Standards Board ("FASB") issued authoritative guidance in regards to the criteria for reporting discontinued operations while enhancing disclosures in this area. Under the new guidance, only disposals representing a strategic shift in operations should be presented as discontinued operations. In addition, the new guidance requires expanded disclosures about discontinued operations that will provide financial statement users with more information about the assets, liabilities, income, and expenses of discontinued operations. The amendments in the authoritative guidance were effective in the first quarter of 2015. The adoption of this guidance did not have a material impact on the Company's Financial Statements.

Revenue from Contracts with Customers. In May 2014, the FASB issued authoritative guidance that provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance.  The new guidance requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued a decision to delay the effective date by one year.  The new guidance is effective for annual and interim periods beginning after December 15, 2017. Public entities are not permitted to adopt the standard earlier than the original effective date (that is, no earlier than 2017 for calendar year-end entities). The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the impact of adoption of this guidance on its Financial Statements. 

Customer's Accounting for Fees Paid in a Cloud Computing Arrangement.  In April 2015, the FASB issued authoritative guidance designed to assist customers in their determination of whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change GAAP for a customer’s accounting for service contracts. This guidance is effective for annual and interim periods beginning after December 15, 2015. The Company does not expect the adoption of this guidance to have a material impact to its Financial Statements. 

Business Combinations. In September 2015, the FASB issued authoritative guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments following a business combination. The new guidance requires that an acquirer record in the same period’s financial statements the effects of the cumulative impact of adjustments including the impact on prior periods. The prior period impact of the adjustments should be presented separately on the face of the income statement or disclosed in the notes. The new guidance is effective for annual and interim periods beginning after December 15, 2015 for public business entities. The amendments should be applied prospectively to adjustments to provisional amounts that occur after the effective date with earlier application permitted for financial statements that have not been issued. The Company does not expect the adoption of this guidance to have a material impact on its Financial Statements.

Balance Sheet Classification of Deferred Taxes. In November 2015, the FASB issued authoritative guidance which changes how deferred taxes are classified on a company's balance sheet. The new guidance eliminates the current requirement for companies to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, companies will be required to classify all deferred tax assets and liabilities as noncurrent. The new guidance is effective for annual reporting periods beginning after December 15, 2016. Early adoption is permitted for all entities as of the beginning of an interim or annual reporting period. The guidance may be applied either prospectively, for all deferred tax assets and liabilities, or retrospectively (i.e., by reclassifying the comparative balance sheet). If applied prospectively, entities are required to include a statement that prior periods were not retrospectively adjusted. If applied retrospectively, entities are also required to include quantitative information about the effects of the change on prior periods. The Company is in the process of evaluating the impact of adoption of this guidance on its Financial Statements.

33

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note C—Other Current Assets

Other current assets consisted of the following (in thousands):

	December 31,
	2015		2014
Deposits in trusts for employee deferred compensation plans	$	198,256	$	172,237
Other	70,524		73,100
	$	268,780	$	245,337

Note D—Goodwill

The following table sets forth the activity in goodwill from December 31, 2013, through December 31, 2015 (in thousands):

	Goodwill
	Temporary and consultant staffing			Permanent placement staffing			Risk consulting and internal audit services			Total
Balance as of December 31, 2013	$	134,692		$	26,574		$	39,567		$	200,833
Acquisitions	—			—			—			—
Foreign currency translation adjustments	(728		)	(124		)	(493		)	(1,345		)
Balance as of December 31, 2014	$	133,964		$	26,450		$	39,074		$	199,488
Acquisitions	—			—			10,988			10,988
Foreign currency translation adjustments	(791		)	(199		)	(907		)	(1,897		)
Balance as of December 31, 2015	$	133,173		$	26,251		$	49,155		$	208,579

In November 2015 the Company, through its wholly owned subsidiary Protiviti, acquired certain assets of Decision First Technologies, a company specializing in business intelligence solutions. As part of the asset acquisition, the Company recorded goodwill of $11 million within its risk consulting and internal audit services segment.

Note E—Property and Equipment, Net

Property and equipment consisted of the following (in thousands):

	December 31,
	2015			2014
Computer hardware	$	162,346		$	159,309
Computer software	339,634			312,968
Furniture and equipment	96,536			105,262
Leasehold improvements	118,491			113,782
Other	9,560			9,045
Property and equipment, cost	726,567			700,366
Accumulated depreciation	(583,661		)	(578,612		)
Property and equipment, net	$	142,906		$	121,754

34

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note F—Accrued Payroll and Benefit Costs

Accrued payroll and benefit costs consisted of the following (in thousands):

	December 31,
	2015		2014
Payroll and benefits	$	240,793	$	213,962
Employee deferred compensation plans	212,220		181,709
Workers’ compensation	25,834		26,127
Payroll taxes	25,935		26,317
Accrued payroll and benefit costs	$	504,782	$	448,115

Included in employee deferred compensation plans is the following (in thousands):

	December 31,
	2015		2014
Deferred compensation plan and other benefits related to the Company’s Chief Executive Officer	$	81,874	$	79,060

Note G—Notes Payable and Other Indebtedness

The Company issued promissory notes as well as other forms of indebtedness in connection with certain acquisitions and other payment obligations. These are due in varying installments, carry varying interest rates and, in aggregate, amounted to $1.2 million at December 31, 2015, and $1.3 million at December 31, 2014. At December 31, 2015, $1.2 million of the notes were collateralized by a standby letter of credit. The following table shows the schedule of maturities for notes payable and other indebtedness at December 31, 2015 (in thousands):

2016	$	153
2017	167
2018	183
2019	200
2020	218
Thereafter	239
	$	1,160

At December 31, 2015, the notes carried fixed rates and the weighted average interest rate for the above was 9.0% for each of the years ended December 31, 2015, 2014 and 2013.

The Company has an uncommitted letter of credit facility (the “facility”) of up to $35.0 million, which is available to cover the issuance of debt support standby letters of credit. The Company had used $13.5 million in debt support standby letters of credit as of December 31, 2015 and $16.6 million as of December 31, 2014. Of the debt support standby letters of credit outstanding, $12.3 million as of December 31, 2015 and $15.3 million as of December 31, 2014, satisfies workers’ compensation insurer’s collateral requirements. There is a service fee of 1.125% on the used portion of the facility. The facility is subject to certain financial covenants and expires on August 31, 2016. The Company intends to renew this facility prior to its August 31, 2016 expiration.

35

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note H—Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2015, 2014 and 2013, consisted of the following (in thousands):

	Years Ended December 31,
	2015			2014			2013
Current:
Federal	$	181,640		$	146,633		$	114,687
State	36,281			33,054			27,358
Foreign	13,892			15,377			16,598
Deferred:
Federal and state	(8,398		)	(4,626		)	(7,759		)
Foreign	(181		)	983			(5,500		)
	$	223,234		$	191,421		$	145,384

Income before the provision for income taxes for the years ended December 31, 2015, 2014 and 2013, consisted of the following (in thousands):

	Years Ended December 31,
	2015		2014		2013
Domestic	$	520,263	$	449,834	$	357,382
Foreign	60,767		47,515		40,197
	$	581,030	$	497,349	$	397,579

The income taxes shown above varied from the statutory federal income tax rates for these periods as follows:

	Years Ended December 31,
	2015		2014		2013
Federal U.S. income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	4.2		4.2		4.3
Non-deductible expenses	0.5		0.6		0.7
Non-U.S. income taxed at different rates, net of foreign tax credits	0.1		(0.2	)	(1.0	)
Federal tax credits	(0.6	)	(0.6	)	(1.3	)
Tax impact of uncertain tax positions	(0.2	)	(0.1	)	0.1
Valuation allowance release, net	(0.5	)	(0.3	)	(1.0	)
Other, net	(0.1	)	(0.1	)	(0.2	)
Effective tax rate	38.4	%	38.5	%	36.6	%

36

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note H—Income Taxes (continued)

The deferred portion of the tax provision (benefit) consisted of the following (in thousands):

	Years Ended December 31,
	2015			2014			2013
Amortization of franchise rights	$	514		$	514		$	514
Amortization of other intangibles	1,590			1,241			621
Accrued expenses, deducted for tax when paid	(17,664		)	(14,221		)	(11,190		)
Capitalized costs for books, deducted for tax	5,315			8,809			3,019
Depreciation	(5,932		)	(4,147		)	(2,597		)
Federal impact of unrecognized tax benefits	1,058			44			(274		)
Foreign tax credit carryforwards	3,636			(186		)	(3,449		)
Other, net	2,904			4,303			97
	$	(8,579	)	$	(3,643	)	$	(13,259	)

The deferred income tax amounts included on the Consolidated Statements of Financial Position are composed of the following (in thousands):

	December 31,
	2015			2014
Current deferred income tax assets, net	$	145,684		$	133,151
Long-term deferred income tax liabilities, net	(29,139		)	(26,807		)
	$	116,545		$	106,344

The components of the deferred income tax amounts at December 31, 2015 and 2014, were as follows (in thousands):

	December 31,
	2015			2014
Deferred Income Tax Assets
Provision for bad debts	$	11,092		$	9,210
Deferred compensation and other benefit obligations	96,948			83,065
Workers’ compensation	8,206			9,138
Stock-based compensation	15,814			14,572
Credits and net operating loss carryforwards	35,499			39,309
Other	23,885			25,316
Total deferred income tax assets	191,444			180,610
Deferred Income Tax Liabilities
Amortization of intangible assets	(26,960		)	(25,060		)
Property and equipment basis differences	(11,890		)	(12,384		)
Other	(9,720		)	(7,261		)
Total deferred income tax liabilities	(48,570		)	(44,705		)
Valuation allowance	(26,329		)	(29,561		)
Total deferred income tax assets, net	$	116,545		$	106,344

Credits and net operating loss carryforwards primarily include net operating losses in foreign countries of $27.9 million that expire in 2016 and later; and California enterprise zone tax credits of $4.3 million that expire in 2023. Valuation allowances of $24.5 million and $1.8 million have been established for net operating losses carryforwards in foreign countries and California enterprise zone tax credits, respectively.

37

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note H—Income Taxes (continued)

The Company has not provided deferred income taxes or foreign withholding taxes on $5.7 million and $3.7 million of undistributed earnings of its non-U.S. subsidiaries as of December 31, 2015 and 2014, respectively, since the Company intends to reinvest these earnings indefinitely. The U.S. tax impact upon repatriation, net of foreign tax credits, would be zero for the years ended December 31, 2015 and 2014.

FASB authoritative guidance prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The literature also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition.

The following table reconciles the total amounts of gross unrecognized tax benefits from January 1, 2013 to December 31, 2015 (in thousands):

	December 31,
	2015			2014			2013
Balance at beginning of period	$	4,573		$	6,110		$	7,097
Gross increases—tax positions in prior years	—			1			559
Gross decreases—tax positions in prior years	(1,807		)	(333		)	(369		)
Gross increases—tax positions in current year	120			35			38
Settlements	(520		)	—			—
Lapse of statute of limitations	(1,552		)	(1,240		)	(1,215		)
Balance at end of period	$	814		$	4,573		$	6,110

The total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate is $0.5 million, $0.9 million and $1.3 million for 2015, 2014 and 2013, respectively.

The Company’s continuing practice is to recognize interest and penalties related to income tax matters in income tax expense. The total amount of interest and penalties accrued as of December 31, 2015, is $0.2 million, including a $2.3 million reduction recorded in income tax expense during the year. The total amount of interest and penalties accrued as of December 31, 2014 is $2.5 million, including a $0.3 million reduction recorded in income tax expense during the year. The total amount of interest and penalties accrued as of December 31, 2013, was $2.8 million, including a $0.3 million reduction recorded in income tax expense during the year.

The Company believes it is reasonably possible that the settlement of certain tax uncertainties could occur within the next twelve months; accordingly, $0.3 million of the unrecognized gross tax benefit has been classified as a current liability as of December 31, 2015. This amount primarily represents unrecognized tax benefits composed of items related to assessed state income tax audits and negotiations.

The Company’s major income tax jurisdictions are the United States, Australia, Belgium, Canada, France, Germany and the United Kingdom. For U.S. federal income tax, the Company remains subject to examination for 2012 and subsequent years. For major U.S. states, with few exceptions, the Company remains subject to examination for 2011 and subsequent years. Generally, for the foreign countries, the Company remains subject to examination for 2008 and subsequent years.

Note I—Commitments and Contingencies

Rental expense, primarily for office premises, amounted to $85.9 million, $89.9 million and $92.7 million for the years ended December 31, 2015, 2014 and 2013, respectively. The approximate minimum rental commitments for 2016 and thereafter under non-cancelable leases in effect at December 31, 2015 were as follows (in thousands):

38

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note I—Commitments and Contingencies (continued)

2016	$	88,177
2017	74,939
2018	56,425
2019	42,763
2020	37,668
Thereafter	81,437
	$	381,409

On April 23, 2010, Plaintiffs David Opalinski and James McCabe, on behalf of themselves and a putative class of similarly situated Staffing Managers, filed a Complaint in the United States District Court for the District of New Jersey naming the Company and one of its subsidiaries as Defendants. The Complaint alleges that salaried Staffing Managers located throughout the U.S. have been misclassified as exempt from the Fair Labor Standards Act’s overtime pay requirements. Plaintiffs seek an unspecified amount for unpaid overtime on behalf of themselves and the class they purport to represent. Plaintiffs also seek an unspecified amount for statutory penalties, attorneys’ fees and other damages. On October 6, 2011, the Court granted the Company’s motion to compel arbitration of the Plaintiffs’ allegations. At this stage, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from these allegations and, accordingly, no amounts have been provided in the Company’s financial statements. The Company believes it has meritorious defenses to the allegations, and the Company intends to continue to vigorously defend against the allegations.

On March 13, 2014, Plaintiff Leonor Rodriguez, on her own behalf and on behalf of a putative class of allegedly similarly situated individuals, filed a complaint against the Company in the Superior Court of California, San Diego County. The complaint alleges that a putative class of current and former employees of the Company working in California since March 13, 2011 were denied compensation for the time they spent interviewing with clients of the Company as well as performing activities related to the interview process. Rodriguez seeks recovery on her own behalf and on behalf of the putative class in an unspecified amount for this allegedly unpaid compensation. Rodriguez also seeks recovery of an unspecified amount for the alleged failure of the Company to provide her and the putative class with accurate wage statements. Rodriguez also seeks an unspecified amount of other damages, attorneys’ fees, and statutory penalties, including but not limited to statutory penalties on behalf of herself and other allegedly “aggrieved employees” as defined by California’s Labor Code Private Attorney General Act (“PAGA”). On October 10, 2014, the Court granted a motion by the Company to compel all of Rodriguez’s claims, except the PAGA claim, to individual arbitration. At this stage of the litigation, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from this proceeding and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations and the Company intends to continue to vigorously defend against the litigation.

On March 23, 2015, Plaintiff Jessica Gentry, on her own behalf and on behalf of a putative class of allegedly similarly situated individuals, filed a complaint against the Company in the Superior Court of California, San Francisco County, which was subsequently amended on October 23, 2015. The complaint, which was filed by the same plaintiffs’ law firm that brought the Rodriguez matter described above, alleges claims similar to those alleged in Rodriguez. Specifically, the complaint alleges that a putative class of current and former employees of the Company working in California since March 13, 2010 were denied compensation for the time they spent interviewing “for temporary and permanent employment opportunities” as well as performing activities related to the interview process. Gentry seeks recovery on her own behalf and on behalf of the putative class in an unspecified amount for this allegedly unpaid compensation. Gentry also seeks recovery of an unspecified amount for the alleged failure of the Company to provide her and the putative class with accurate wage statements. Gentry also seeks an unspecified amount of other damages, attorneys’ fees, and statutory penalties, including penalties for allegedly not paying all wages due upon separation to former employees and statutory penalties on behalf of herself and other allegedly “aggrieved employees” as defined by PAGA. On January 4, 2016, the Court denied a motion by the Company to compel all of Gentry’s claims, except the PAGA claim, to individual arbitration. At this stage of the litigation, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from this proceeding and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations and the Company intends to continue to vigorously defend against the litigation.

The Company is involved in a number of other lawsuits arising in the ordinary course of business. While management does not expect any of these other matters to have a material adverse effect on the Company’s results of operations, financial position or cash flows, litigation is subject to certain inherent uncertainties.

39

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note I—Commitments and Contingencies (continued)

Legal costs associated with the resolution of claims, lawsuits and other contingencies are expensed as incurred.

Note J—Stockholders’ Equity

Stock Repurchase Program.    As of December 31, 2015, the Company is authorized to repurchase, from time to time, up to 10.4 million additional shares of the Company’s common stock on the open market or in privately negotiated transactions, depending on market conditions. The number and the cost of common stock shares repurchased during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Common stock repurchased (in shares)	4,343		3,336		3,305
Common stock repurchased	$	228,166	$	161,587	$	117,864

Additional stock repurchases were made in connection with employee stock plans, whereby Company shares were tendered by employees for the payment of exercise price and applicable statutory withholding taxes. The number and the cost of employee stock plan repurchases made during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Employee stock plan repurchased (in shares)	474		462		1,157
Employee stock plan repurchased	$	24,755	$	22,386	$	44,169

The repurchased shares are held in treasury and are presented as if constructively retired. Treasury stock is accounted for using the cost method. Treasury stock activity for each of the three years ended December 31, 2015, 2014 and 2013 (consisting of stock option exercises and the purchase of shares for the treasury) is presented in the Consolidated Statements of Stockholders’ Equity.

Cash Dividends. The Company’s Board of Directors may at their discretion declare and pay dividends upon the shares of the Company’s stock either out of the Company’s retained earnings or capital surplus. The cash dividends declared during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table:

	Years Ended December 31,
	2015		2014		2013
Cash dividends declared per share	$	.80	$	.72	$	.64

Repurchases of shares and issuances of cash dividends are applied first to the extent of retained earnings and any remaining amounts are applied to capital surplus.

Note K—Stock Plans

Under various stock plans, officers, employees, and outside directors have received or may receive grants of restricted stock, stock units, stock appreciation rights or options to purchase common stock. Grants have been made at the discretion of the Committees of the Board of Directors. Grants generally vest either on a straight-line basis over four years or on a cliff basis over three years. Shares offered under the plan are authorized but unissued shares or treasury shares.

Options currently outstanding under the plans have an exercise price equal to the fair market value of the Company’s common stock at the date of grant and consist of non-statutory stock options under the Internal Revenue Code, and generally have a term of 10 years. The Company has not granted any options to purchase common stock since 2006.

Recipients of restricted stock do not pay any cash consideration to the Company for the shares, have the right to vote all shares subject to such grant, and for grants made prior to July 28, 2009, receive all dividends with respect to such shares on the dividend payment dates, whether or not the shares have vested as long as any performance condition has been met. Restricted

40

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note K—Stock Plans (continued)

stock grants made on or after July 28, 2009, contain forfeitable rights to dividends. Dividends for these grants are accrued on the dividend payment dates but are not paid until the shares vest, and dividends accrued for shares that ultimately do not vest are forfeited. Recipients of stock units do not pay any cash consideration for the units, do not have the right to vote, and do not receive dividends with respect to such units.

FASB authoritative guidance requires that excess tax benefits be recognized as an addition to capital surplus and that unrealized tax benefits be recognized as income tax expense unless there are excess tax benefits from previous equity awards to which it can be offset. The Company calculates the amount of eligible excess tax benefits that are available to offset future tax shortfalls in accordance with the long-form method described in the FASB authoritative guidance.

The Company recognizes compensation expense equal to the grant-date fair value for all stock-based payment awards that are expected to vest. This expense is recorded on a straight-line basis over the requisite service period of the entire award, unless the awards are subject to performance conditions, in which case the Company recognizes compensation expense over the requisite service period of each separate vesting tranche. The Company determines the grant-date fair value of its restricted stock and stock unit awards using the fair market value on the grant date, unless the awards are subject to market conditions, in which case the Company utilizes a binomial-lattice model (i.e., Monte Carlo simulation model). The Monte Carlo simulation model utilizes multiple input variables to determine the stock-based compensation expense.

During the year ended December 31, 2015, the Company granted performance shares to its executives in the form of restricted stock. The shares granted contain (1) a performance condition based on target net income per share, and (2) a market condition based on Total Shareholder Return (“TSR”). The TSR market condition measures the Company’s performance against a peer group. Shares will be delivered at the end of the three year vesting and TSR performance period based on the Company’s actual performance compared to the peer group. Actual shares earned will range from fifty percent (50%) to one hundred fifty percent (150%) of the target award after any adjustment made for the performance condition. The fair value of this award was determined using a Monte Carlo simulation with the following assumptions: an historical volatility of 23.70%, 0% dividend yield and a risk-free interest rate of 0.84%. The historical volatility was based on the most recent 2.76-year period for the Company and the components of the peer group. The stock price projection for the Company and the components of the peer group assumes a 0% dividend yield. This is mathematically equivalent to reinvesting dividends in the issuing entity over the performance period. The risk-free interest rate is equal to the yield, as of the measurement date, of the zero-coupon U.S. Treasury bill that is commensurate with the remaining performance measurement period.

Stock-based compensation expense consisted of the following (in thousands):

	Years Ended December 31,
	2015		2014		2013
Restricted stock and stock units	$	41,292	$	40,821	$	38,867

Unrecognized compensation cost is expected to be recognized over the next four years. Total unrecognized compensation cost, net of estimated forfeitures, consisted of the following (in thousands):

	December 31,
	2015		2014		2013
Restricted stock and stock units	$	60,627	$	54,968	$	53,646

The following table reflects activity under all stock plans from December 31, 2012 through December 31, 2015, and the weighted average exercise prices (in thousands, except per share amounts):

41

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note K—Stock Plans (continued)

	Restricted Stock Plans without Market-Condition				Restricted Stock Plans with Market-Condition				Stock Option Plans
	Number of Shares/ Units			Weighted Average Grant Date Fair Value	Number of Shares/ Units			Weighted Average Grant Date Fair Value	Number of Shares/ Units			Weighted Average Exercise Price Per Share
Outstanding, December 31, 2012		1,737		$28.25		758		$30.77		2,091		$24.80
Granted		688		$35.34		400		$42.04		—		—
Exercised		—		—		—		—		(1,397	)	$23.82
Restrictions lapsed		(1,087	)	$28.53		(259	)	$29.53		—		—
Forfeited		(21	)	$31.29		—		—		(62	)	$20.48
Outstanding, December 31, 2013		1,317		$31.68		899		$36.58		632		$27.41
Granted		585		$41.60		335		$50.09		—		—
Exercised		—		—		—		—		(528	)	$27.12
Restrictions lapsed		(712	)	$31.96		—		—		—		—
Forfeited		(25	)	$32.82		—		—		(27	)	$27.83
Outstanding, December 31, 2014		1,165		$36.47		1,234		$40.24		77		$29.22
Granted		502		$58.14		257		$71.86		—		—
Exercised		—		—		—		—		(54	)	$28.18
Restrictions lapsed		(599	)	$36.30		(499	)	$31.41		—		—
Forfeited		(16	)	$37.63		—		—		(11	)	$30.94
Outstanding, December 31, 2015		1,052		$46.88		992		$52.89		12		$32.36

The total pre-tax intrinsic value of stock options exercised and the total fair value of shares vested during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Total pre-tax intrinsic value of stock options exercised	$	1,709	$	9,150	$	17,092
Total fair value of shares vested	$	56,570	$	38,566	$	53,931

The following table summarizes information about options outstanding and exercisable as of December 31, 2015 (in thousands, except number of years and per share amounts):

	Options Outstanding and Exercisable
Range of Exercise Prices	Number Outstanding and Exercisable as of December 31, 2015		Weighted Average Remaining Contractual Life	Weighted Average Exercise Price	Aggregate Intrinsic Value
$32.36 to $32.36		12	0.57	$32.36		$	179

The aggregate intrinsic value in the preceding table represents the total pre-tax intrinsic value, based on the Company’s closing stock price of $47.14 as of December 31, 2015, which would have been received by the option holders had they exercised their in-the-money options as of that date.

At December 31, 2015, the total number of available shares to grant under the plans (consisting of either restricted stock, stock units, stock appreciation rights or options to purchase common stock) was approximately 5.8 million. All of the 12 thousand options outstanding at December 31, 2015, were exercisable with a weighted average exercise price of $32.36.

42

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note L—Net Income Per Share

The calculation of net income per share for the three years ended December 31, 2015 is reflected in the following table (in thousands, except per share amounts):

	Years Ended December 31,
	2015		2014		2013
Basic net income per share:
Net income	$	357,796	$	305,928	$	252,195
Income allocated to participating securities	—		—		3
Net income available to common stockholders	$	357,796	$	305,928	$	252,192
Basic weighted average shares	131,749		134,358		136,153
Basic net income per share	$	2.72	$	2.28	$	1.85
Diluted net income per share:
Net income	$	357,796	$	305,928	$	252,195
Income allocated to participating securities	—		—		3
Net income available to common stockholders	$	357,796	$	305,928	$	252,192
Basic weighted average shares	131,749		134,358		136,153
Dilutive effect of potential common shares	1,181		1,183		1,436
Diluted weighted average shares	132,930		135,541		137,589
Diluted net income per share	$	2.69	$	2.26	$	1.83

Potential common shares include the dilutive effect of stock options, unvested performance-based restricted stock, restricted stock which contains forfeitable rights to dividends, and stock units.

Employee stock options will have a dilutive effect under the treasury method only when the respective period’s average market value of the Company’s common stock exceeds the exercise proceeds. Under the treasury method, exercise proceeds include the amount the employee must pay for exercising stock options, the amount of compensation cost for future service that the Company has not yet recognized, and the amount of tax benefits that would be recorded in capital surplus, if the options were exercised and the stock units and performance-based restricted stock had vested.

Note M—Business Segments

The Company, which aggregates its operating segments based on the nature of services, has three reportable segments: temporary and consultant staffing, permanent placement staffing, and risk consulting and internal audit services. The temporary and consultant segment provides specialized staffing in the accounting and finance, administrative and office, information technology, legal, advertising, marketing and web design fields. The permanent placement segment provides full-time personnel in the accounting, finance, administrative and office, and information technology fields. The risk consulting segment provides business and technology risk consulting and internal audit services.

The accounting policies of the segments are set forth in Note A—Summary of Significant Accounting Policies. The Company evaluates performance based on income from operations before net interest income, intangible amortization expense, and income taxes.

43

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note M—Business Segments (continued)

The following table provides a reconciliation of revenue and operating income by reportable segment to consolidated results (in thousands):

	Years Ended December 31,
	2015			2014			2013
Net service revenues
Temporary and consultant staffing	$	3,930,843		$	3,676,281		$	3,369,840
Permanent placement staffing	421,411			394,515			347,715
Risk consulting and internal audit services	742,679			624,218			528,340
	$	5,094,933		$	4,695,014		$	4,245,895
Operating income
Temporary and consultant staffing	$	399,808		$	358,533		$	301,185
Permanent placement staffing	85,019			78,333			54,390
Risk consulting and internal audit services	95,845			60,316			42,702
	580,672			497,182			398,277
Amortization of intangible assets	192			557			1,700
Interest income, net	(550		)	(724		)	(1,002		)
Income before income taxes	$	581,030		$	497,349		$	397,579

The Company does not report total assets by segment. The following tables represent identifiable assets by business segment (in thousands):

	December 31,
	2015		2014		2013
Accounts receivable
Temporary and consultant staffing	$	425,179	$	403,615	$	349,364
Permanent placement staffing	121,670		115,563		100,550
Risk consulting and internal audit services	192,878		169,042		129,252
	$	739,727	$	688,220	$	579,166
	December 31,
	2015		2014		2013
Goodwill
Temporary and consultant staffing	$	133,173	$	133,964	$	134,692
Permanent placement staffing	26,251		26,450		26,574
Risk consulting and internal audit services	49,155		39,074		39,567
	$	208,579	$	199,488	$	200,833

44

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note M—Business Segments (continued)

The Company operates internationally, with operations in North America, South America, Europe, Asia and Australia. The following tables represent revenues and long-lived assets by geographic location (in thousands):

	Years Ended December 31,
	2015		2014		2013
Net service revenues (a)
Domestic	$	4,105,013	$	3,623,812	$	3,219,820
Foreign (b)	989,920		1,071,202		1,026,075
	$	5,094,933	$	4,695,014	$	4,245,895
	December 31,
	2015		2014		2013
Assets, long-lived
Domestic	$	117,176	$	101,181	$	92,252
Foreign	25,730		20,573		20,392
	$	142,906	$	121,754	$	112,644

(a) There were no customers that accounted for more than 10% of the Company's total net revenue in any year presented.

(b) No individual country represented more than 10% of revenues in any year presented.

Note N—Quarterly Financial Data (Unaudited)

The following tabulation shows certain quarterly financial data for 2015 and 2014 (in thousands, except per share amounts):

	Quarter
2015	1		2		3		4
Net service revenues	$	1,205,563	$	1,272,058	$	1,312,718	$	1,304,594
Gross margin	$	494,087	$	530,502	$	549,801	$	540,081
Income before income taxes	$	128,174	$	149,235	$	159,306	$	144,315
Net income	$	77,922	$	89,706	$	96,725	$	93,443
Basic net income per share	$	.59	$	.68	$	.74	$	.71
Diluted net income per share	$	.58	$	.67	$	.73	$	.71

	Quarter
2014	1		2		3		4
Net service revenues	$	1,084,342	$	1,164,914	$	1,224,308	$	1,221,450
Gross margin	$	438,495	$	478,444	$	505,220	$	500,757
Income before income taxes	$	102,014	$	123,653	$	138,361	$	133,321
Net income	$	61,551	$	75,140	$	85,184	$	84,053
Basic net income per share	$	.45	$	.56	$	.64	$	.63
Diluted net income per share	$	.45	$	.55	$	.63	$	.62

45

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Note O—Subsequent Events

On February 11, 2016 the Company announced the following:

Quarterly dividend per share	$.22
Declaration date	February 11, 2016
Record date	February 25, 2016
Payment date	March 15, 2016

46

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Robert Half International Inc.:

In our opinion, the consolidated financial statements listed in the index appearing under Item 15(a)(1) present fairly, in all material respects, the financial position of Robert Half International Inc. and its subsidiaries at December 31, 2015 and 2014, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2015 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the index appearing under Item 15(a)(2) presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Report on Internal Control over Financial Reporting appearing in Item 9A. Our responsibility is to express opinions on these financial statements, on the financial statement schedule, and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP

San Francisco, California

February 17, 2016

47

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Disclosure Controls and Procedures. Management, including the Company’s Chairman and Chief Executive Officer and the Vice Chairman and Chief Financial Officer, evaluated the effectiveness of the design and operation of the Company’s disclosure controls and procedures as of the end of the period covered by this report. Based upon that evaluation, the Chairman and Chief Executive Officer and the Vice Chairman and Chief Financial Officer concluded that the disclosure controls and procedures were effective to ensure that information required to be disclosed in the reports the Company files and submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission and that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting. There have been no changes in the Company’s internal controls over financial reporting identified in connection with the evaluation required by Rule 13a-15 of the Securities Exchange Act of 1934 that occurred during the Company’s fourth quarter that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

Management’s Report on Internal Control over Financial Reporting. Management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934, as amended). Management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2015, using criteria established in Internal Control-Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and concluded that the Company maintained effective internal control over financial reporting as of December 31, 2015.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies and procedures may deteriorate.

The effectiveness of the Company’s internal control over financial reporting as of December 31, 2015, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is included herein.

Item 9B. Other Information

None.

48

PART III

Except as provided below in this Part III, the information required by Items 10 through 14 of Part III is incorporated by reference from Item 1 of this Report and from the registrant’s Proxy Statement, under the captions “Nomination and Election of Directors,” “Beneficial Stock Ownership,” “Compensation Discussion and Analysis,” “Compensation Tables,” “Corporate Governance,” “The Board and Committees” and “Independent Registered Public Accounting Firm” which Proxy Statement will be mailed to stockholders in connection with the registrant’s annual meeting of stockholders which is scheduled to be held in May 2016.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Equity Compensation Plan Information

Plan Category	Number of securities to be issued upon exercise of outstanding options, warrants and rights A	Weighted average exercise price of outstanding options, warrants and rights B	Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column A) C
Equity compensation plans approved by security holders	12,107	$32.36	5,762,138
Equity compensation plans not approved by security holders	—	—	—
Total	12,107	$32.36	5,762,138

Since May 2005, all grants have been made pursuant to the Stock Incentive Plan, which was approved by stockholders in May 2005 and re-approved in May 2008, May 2011, May 2013, and May 2014. Such plan authorizes the issuance of stock options, restricted stock, stock units and stock appreciation rights to directors, executive officers and employees.

49

PART IV

Item 15.    Exhibits and Financial Statement Schedules

(a) 1.    Financial Statements

The following consolidated financial statements of the Company and its subsidiaries are included in Item 8 of this report:

Consolidated statements of financial position at December 31, 2015 and 2014.

Consolidated statements of operations for the years ended December 31, 2015, 2014, and 2013.

Consolidated statements of comprehensive income for the years ended December 31, 2015, 2014, and 2013.

Consolidated statements of stockholders’ equity for the years ended December 31, 2015, 2014, and 2013.

Consolidated statements of cash flows for the years ended December 31, 2015, 2014, and 2013.

Notes to consolidated financial statements.

Report of independent registered public accounting firm.

Selected quarterly financial data for the years ended December 31, 2015 and 2014 are set forth in Note N—Quarterly Financial Data (Unaudited) included in Item 8 of this report.

2. Financial Statement Schedules

Schedule II—Valuation and Qualifying Accounts

Schedules I, III, IV and V have been omitted as they are not applicable.

50

3. Exhibits

Exhibit No.	Exhibit
3.1	Restated Certificate of Incorporation, incorporated by reference to Exhibit 3.1 to Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2009.
3.2	By-Laws, incorporated by reference to Exhibit 3.2 to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2003.
4.1	Restated Certificate of Incorporation of Registrant (filed as Exhibit 3.1).
*10.1	Form of Power of Attorney and Indemnification Agreement, incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2002.
*10.2	Employment Agreement between the Registrant and Harold M. Messmer, Jr., incorporated by reference to (i) Exhibit 10.(c) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1985, (ii) Exhibit 10.2(b) to Registrant’s Registration Statement on Form S-1 (No. 33-15171), (iii) Exhibit 10.2(c) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1987, (iv) Exhibit 10.2(d) to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1988, (v) Exhibit 28.1 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 1990, (vi) Exhibit 10.8 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1991, (vii) Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 1993, (viii) Exhibit 10.7 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1993, (ix) Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 1995, (x) Exhibit 10.7 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1995, (xi) Exhibit 10.2 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1996, (xii) Exhibit 10.2 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1997, (xiii) Exhibit 10.2 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1998, (xiv) Exhibit 10.2 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1999, (xv) Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2004, (xvi) Exhibit 10.5 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2008, and (xvii) Exhibit 10.2 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2010.
*10.3	Amended and Restated Retirement Agreement between Registrant and Harold M. Messmer Jr., incorporated by reference to Exhibit 99.2 to the Registrant’s Current Report on Form 8-K dated December 7, 2006.
*10.4	Amended and Restated Deferred Compensation Plan, incorporated by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2008.
*10.5	Amended and Restated Severance Agreement dated as of February 9, 2011, between Registrant and Paul F. Gentzkow, incorporated by reference to Exhibit 10.8 to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2010.
*10.6	Agreement dated as of July 31, 1995, between Registrant and Paul F. Gentzkow, incorporated by reference to Exhibit 10.6 to Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2000.
*10.7	Form of Amended and Restated Severance Agreement, incorporated by reference to Exhibit 10.10 to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2010.
*10.8	Form of Indemnification Agreement for Directors of the Registrant, incorporated by reference to (i) Exhibit 10.27 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1989 and (ii) Exhibit 10.19 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 1993.

51

Exhibit No.	Exhibit
*10.9	Form of Indemnification Agreement for Executive Officers of Registrant, incorporated by reference to Exhibit 10.4 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2000.
*10.10	Senior Executive Retirement Plan, incorporated by reference to Exhibit 10.13 to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2010.
*10.11	Collateral Assignment of Split Dollar Insurance Agreement, incorporated by reference to (i) Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2000, and (ii) Exhibit 10.18 to the Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2003.
*10.12	Form of Part-Time Employment Agreement, as amended and restated, incorporated by reference to Exhibit 10.1 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2014.
*10.13	Annual Performance Bonus Plan, as amended and restated, incorporated by reference to Exhibit 99.1 to Registrant’s Current Report on Form 8-K dated May 23, 2013.
*10.14	Summary of Outside Director Cash Remuneration, incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2010.
*10.15	Stock Incentive Plan, as amended and restated, incorporated by reference to Exhibit 10.2 to the Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2014.
*10.16	Stock Incentive Plan—Form of Restricted Share Agreement for Executive Officers effective April 15, 2013, incorporated by reference to Exhibit 10.1 to Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2013.
*10.17	Stock Incentive Plan—Form of Restricted Share Agreement for Executive Officers effective through April 14, 2013, incorporated by reference to Exhibit 99.3 to Registrant’s Current Report on Form 8-K dated May 3, 2005.
*10.18	Amendment to Restricted Share Agreement dated as of May 9, 2012, between Registrant and Harold M. Messmer, Jr., incorporated by reference to Exhibit 10.1 to Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2012.
*10.19	Form of Amendment to Restricted Share Agreement dated as of May 9, 2012, incorporated by reference to Exhibit 10.2 to Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2012.
*10.20	Form of Amendment to Restricted Share Agreement dated as of November 8, 2012, incorporated by reference to Exhibit 10.27 to Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012.
*10.21	Stock Incentive Plan—Form of Stock Option Agreement for Executive Officers, incorporated by reference to Exhibit 99.4 to Registrant’s Current Report on Form 8-K dated May 3, 2005.
*10.22	Stock Incentive Plan—Form of Restricted Share Agreement for Outside Directors, incorporated by reference to Exhibit 10.1 to Registrant’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2006.
*10.23	Stock Incentive Plan—Form of Stock Option Agreement for Outside Directors, incorporated by reference to Exhibit 99.6 to Registrant’s Current Report on Form 8-K dated May 3, 2005.
21.1	Subsidiaries of the Registrant.
23.1	Independent Registered Public Accounting Firm’s Consent.
31.1	Rule 13a-14(a) Certification of Chief Executive Officer.

52

Exhibit No.	Exhibit
31.2	Rule 13a-14(a) Certification of Chief Financial Officer.
32.1	Rule 1350 Certification of Chief Executive Officer.
32.2	Rule 1350 Certification of Chief Financial Officer.
101.1	Part II, Item 8 of this Form 10-K formatted in XBRL.

*    Management contract or compensatory plan.

53

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ROBERT HALF INTERNATIONAL INC. (Registrant)
Date: February 17, 2016	By:	/s/ M. KEITH WADDELL
		M. Keith Waddell Vice Chairman, President and Chief Financial Officer (Principal Financial Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Date: February 17, 2016	By:	/s/ HAROLD M. MESSMER, JR.
		Harold M. Messmer, Jr. Chairman of the Board, Chief Executive Officer, and a Director (Principal Executive Officer)
Date: February 17, 2016	By:	/s/ ANDREW S. BERWICK, JR.
		Andrew S. Berwick, Jr., Director
Date: February 17, 2016	By:	/s/ BARBARA J. NOVOGRADAC
		Barbara J. Novogradac, Director
Date: February 17, 2016	By:	/s/ ROBERT J. PACE
		Robert J. Pace, Director
Date: February 17, 2016	By:	/s/ FREDERICK A. RICHMAN
		Frederick A. Richman, Director
Date: February 17, 2016	By:	/s/ M. KEITH WADDELL
		M. Keith Waddell Vice Chairman, President, Chief Financial Officer and a Director (Principal Financial Officer)
Date: February 17, 2016	By:	/s/ MICHAEL C. BUCKLEY
		Michael C. Buckley Executive Vice President and Treasurer (Principal Accounting Officer)

54

Schedule II—Valuation and Qualifying Accounts

(in thousands)

	Balance at Beginning of Period	Charged to Expenses	Deductions	Translation Adjustments	Balance at End of Period
Year Ended December 31, 2013
Allowance for doubtful accounts receivable	$24,852	7,467	(4,313)	(745)	$27,261
Deferred tax valuation allowance	$39,310	7,053	(8,135)	(1,184)	$37,044
Year Ended December 31, 2014
Allowance for doubtful accounts receivable	$27,261	9,825	(3,670)	(2,872)	$30,544
Deferred tax valuation allowance	$37,044	1,742	(6,056)	(3,169)	$29,561
Year Ended December 31, 2015
Allowance for doubtful accounts receivable	$30,544	12,005	(5,353)	(2,109)	$35,087
Deferred tax valuation allowance	$29,561	6,283	(8,068)	(1,447)	$26,329

55

EX-21.1

EXHIBIT 21.1

SUBSIDIARIES OF ROBERT HALF INTERNATIONAL INC.

Name of Subsidiary	Jurisdiction of Incorporation
RH Holding Company, Inc.	California
Robert Half of California, Inc.	California
Robert Half Staffing, LLC	California
Robert Half Temporaries, Inc.	California
Jersey Temporaries, Inc.	Delaware
Protiviti Inc.	Delaware
Protiviti Holdings Inc.	Delaware
RH-TM Resources, Inc.	Delaware
Protiviti Government Services, Inc.	Maryland
Robert Half Corporation	Nevada
Robert Half Nevada Staff, Inc.	Nevada
Robert Half of Pennsylvania, Inc.	Pennsylvania
Protiviti Pty. Limited	Australia
Robert Half Australia Pty. Limited	Australia
Robert Half Austria GmbH	Austria
Robert Half BVBA	Belgium
Robert Half Trabalho Temporário Ltda.	Brazil
Protiviti EOOD	Bulgaria
Robert Half Canada Inc.	Canada
Robert Half Internacional Empresa De Servicios Transitorios Limitada	Chile
Protiviti Shanghai Co. Ltd.	China
Robert Half Human Resources Shanghai Company Limited	China
Robert Half Hong Kong Limited	China, Hong Kong SAR
Protiviti Hong Kong Co. Limited	China, Hong Kong SAR
Protiviti SAS	France

Name of Subsidiary	Jurisdiction of Incorporation
Robert Half International France SAS	France
Robert Half SAS	France
Protiviti GmbH	Germany
Robert Half Deutschland Beteiligungsgesellschaft GmbH	Germany
Robert Half Deutschland GmbH & Co. KG	Germany
Protiviti Consulting Private Limited	India
Protiviti S.r.l.	Italy
Robert Half S.r.l.	Italy
Protiviti LLC	Japan
Robert Half Japan Ltd.	Japan
Robert Half Sarl	Luxembourg
Robert Half Holding Sarl	Luxembourg
Protiviti B.V.	Netherlands
Robert Half International B.V.	Netherlands
Robert Half Nederland B.V.	Netherlands
Robert Half New Zealand Limited	New Zealand
Protiviti Pte. Ltd.	Singapore
Robert Half International Pte. Ltd.	Singapore
Robert Half GmbH	Switzerland
Robert Half International (Dubai) Ltd.	United Arab Emirates
Protiviti Limited	United Kingdom
Robert Half Holdings Limited	United Kingdom
Robert Half Limited	United Kingdom

EX-23.1

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 33-14706, 33-32622, 33-32623, 33-39187, 33-39204, 33-40795, 33-52617, 33-56639, 33-56641, 33-57763, 33-62138, 33-62140, 33-65401, 33-65403, 333-05743, 333-05745, 333-18283, 333-18339, 333-38786, 333-38820, 333-42471, 333-42573, 333-42343, 333-42269, 333-50068, 333-50094, 333-66038, 333-66042, 333-68193, 333-68135, 333-68273, 333-75694, 333-79793, 333-79829, 333-88001, 333-91173, 333-91151, 333-91167, 333-98737, 333-125044, 333-151015, and 333-196291) of Robert Half International Inc., of our report dated February 17, 2016, relating to the consolidated financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

San Francisco, California

February 17, 2016

EX-31.1

EXHIBIT 31.1

Certification Pursuant to Rule 13a-14 under the Securities Exchange Act of 1934

I, Harold M. Messmer, Jr., certify that:

1. I have reviewed this report on Form 10-K of Robert Half International Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 17, 2016

/s/ HAROLD M. MESSMER, JR.    

Harold M. Messmer, Jr.

Chairman and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

Certification Pursuant to Rule 13a-14 under the Securities Exchange Act of 1934

I, M. Keith Waddell, certify that:

1. I have reviewed this report on Form 10-K of Robert Half International Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a)  all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 17, 2016

/s/ M. KEITH WADDELL    

M. Keith Waddell

Vice Chairman, President and

Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT

TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K for the fiscal year ended December 31, 2015 of Robert Half International Inc. (the “Form 10-K”), I, Harold M. Messmer, Jr., Chief Executive Officer of Robert Half International Inc., certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.    The Form 10-K fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.    The information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of Robert Half International Inc.

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Robert Half International Inc. and will be retained by Robert Half International Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

February 17, 2016	/s/ Harold M. Messmer, Jr.
	Harold M. Messmer, Jr. Chief Executive Officer Robert Half International Inc.

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. 1350, AS ADOPTED PURSUANT

TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K for the fiscal year ended December 31, 2015 of Robert Half International Inc. (the “Form 10-K”), I, M. Keith Waddell, Chief Financial Officer of Robert Half International Inc., certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.    The Form 10-K fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.    The information contained in the Form 10-K fairly presents, in all material respects, the financial condition and results of operations of Robert Half International Inc.

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Robert Half International Inc. and will be retained by Robert Half International Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

February 17, 2016	/s/ M. Keith Waddell
	M. Keith Waddell Chief Financial Officer Robert Half International Inc.

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Jan. 31, 2016	Jun. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	RHI
Entity Registrant Name	HALF ROBERT INTERNATIONAL INC /DE/
Entity Central Index Key	0000315213
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		131,156,828
Entity Public Float			$ 7,212,071,210

XML

Consolidated Statements of Financial Position - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 224,577	$ 287,119
Accounts receivable, less allowances of $35,087 and $30,544	704,640	657,676
Current deferred income taxes	145,684	133,151
Other current assets	268,780	245,337
Total current assets	1,343,681	1,323,283
Goodwill	208,579	199,488
Other intangible assets, net	4,508	0
Property and equipment, net	142,906	121,754
Other assets	3,286	2,742
Total assets	1,702,960	1,647,267
LIABILITIES
Accounts payable and accrued expenses	148,108	175,107
Accrued payroll and benefit costs	504,782	448,115
Income taxes payable	2,506	0
Current portion of notes payable and other indebtedness	153	140
Total current liabilities	655,549	623,362
Notes payable and other indebtedness, less current portion	1,007	1,159
Other liabilities	42,623	42,888
Total liabilities	$ 699,179	$ 667,409
Commitments and Contingencies
STOCKHOLDERS’ EQUITY
Preferred stock, $.001 par value authorized 5,000,000 shares; issued and outstanding zero shares	$ 0	$ 0
Common stock, $.001 par value authorized 260,000,000 shares; issued and outstanding 131,156,064 and 135,134,064 shares	131	135
Capital surplus	979,477	928,157
Accumulated other comprehensive (loss) income	(10,294)	14,730
Retained earnings	34,467	36,836
Total stockholders’ equity	1,003,781	979,858
Total liabilities and stockholders’ equity	$ 1,702,960	$ 1,647,267

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Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 35,087	$ 30,544
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, authorized	260,000,000	260,000,000
Common stock, issued	131,156,064	135,134,064
Common stock, outstanding	131,156,064	135,134,064

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Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Net service revenues	$ 5,094,933	$ 4,695,014	$ 4,245,895
Direct costs of services, consisting of payroll, payroll taxes, benefit costs and reimbursable expenses	2,980,462	2,772,098	2,522,803
Gross margin	2,114,471	1,922,916	1,723,092
Selling, general and administrative expenses	1,533,799	1,425,734	1,324,815
Amortization of intangible assets	192	557	1,700
Interest income, net	(550)	(724)	(1,002)
Income before income taxes	581,030	497,349	397,579
Provision for income taxes	223,234	191,421	145,384
Net income	357,796	305,928	252,195
Net income available to common stockholders—diluted	$ 357,796	$ 305,928	$ 252,192
Net income per share:
Basic (in USD per share)	$ 2.72	$ 2.28	$ 1.85
Diluted (in USD per share)	$ 2.69	$ 2.26	$ 1.83
Shares:
Basic (in shares)	131,749	134,358	136,153
Diluted (in shares)	132,930	135,541	137,589
Cash dividends declared per share (in USD per share)	$ 0.80	$ 0.72	$ 0.64

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
COMPREHENSIVE INCOME:
Net income	$ 357,796	$ 305,928	$ 252,195
Foreign currency translation adjustments, net of tax	(25,024)	(23,341)	(5,708)
Total comprehensive income	$ 332,772	$ 282,587	$ 246,487

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Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	COMMON STOCK	CAPITAL SURPLUS	ACCUMULATED OTHER COMPREHENSIVE INCOME	RETAINED EARNINGS
Balance at beginning of period, (in shares) at Dec. 31, 2012		139,439
Balance at beginning of period at Dec. 31, 2012		$ 139	$ 798,093	$ 43,779	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net issuances of restricted stock, (in shares)		1,091
Net issuances of restricted stock		$ 1	(1)
Repurchases of common stock, (in shares)		(4,461)
Repurchases of common stock		$ (4)			(162,029)
Exercises of stock options, (in shares)	1,397	1,397
Exercises of stock options		$ 1	33,285
Cash dividends			(12,256)		(76,851)
Stock-based compensation expense			38,867
Tax impact of equity incentive plans			10,132
Foreign currency translation adjustments, net of tax	$ (5,708)			(5,708)
Net income	$ 252,195				252,195
Balance at end of period, (in shares) at Dec. 31, 2013		137,466
Balance at end of period at Dec. 31, 2013		$ 137	868,120	38,071	13,315
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net issuances of restricted stock, (in shares)		938
Net issuances of restricted stock		$ 1	(1)
Repurchases of common stock, (in shares)		(3,798)
Repurchases of common stock		$ (4)			(183,969)
Exercises of stock options, (in shares)	528	528
Exercises of stock options		$ 1	14,323
Cash dividends			0		(98,438)
Stock-based compensation expense			40,821
Tax impact of equity incentive plans			4,894
Foreign currency translation adjustments, net of tax	$ (23,341)			(23,341)
Net income	305,928				305,928
Balance at end of period, (in shares) at Dec. 31, 2014		135,134
Balance at end of period at Dec. 31, 2014	$ 979,858	$ 135	928,157	14,730	36,836
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net issuances of restricted stock, (in shares)		785
Net issuances of restricted stock		$ 1	(1)
Repurchases of common stock, (in shares)		(4,817)
Repurchases of common stock		$ (5)			(252,916)
Exercises of stock options, (in shares)	54	54
Exercises of stock options		$ 0	1,529
Cash dividends			0		(107,249)
Stock-based compensation expense			41,292
Tax impact of equity incentive plans			8,500
Foreign currency translation adjustments, net of tax	$ (25,024)			(25,024)
Net income	357,796				357,796
Balance at end of period, (in shares) at Dec. 31, 2015		131,156
Balance at end of period at Dec. 31, 2015	$ 1,003,781	$ 131	$ 979,477	$ (10,294)	$ 34,467

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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CAPITAL SURPLUS
Cash dividends, per share			$ 0.64
RETAINED EARNINGS
Cash dividends, per share	$ 0.80	$ 0.72	$ 0.64

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 357,796	$ 305,928	$ 252,195
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	192	557	1,700
Depreciation expense	53,273	49,124	47,072
Stock-based compensation expense—restricted stock and stock units	41,292	40,821	38,867
Excess tax benefits from stock-based compensation	(8,762)	(7,174)	(8,103)
Deferred income taxes	(8,579)	(3,643)	(13,259)
Provision for doubtful accounts	12,005	9,825	7,467
Changes in assets and liabilities, net of effects of acquisitions:
Increase in accounts receivable	(75,745)	(134,917)	(47,699)
Increase in accounts payable, accrued expenses, accrued payroll and benefit costs	60,232	71,740	38,356
Increase (decrease) in income taxes payable	19,948	16,359	(11,927)
Change in other assets, net of change in other liabilities	(13,416)	(7,922)	4,548
Net cash flows provided by operating activities	438,236	340,698	309,217
CASH FLOWS FROM INVESTING ACTIVITIES:
Payments for acquisitions, net of cash acquired	(14,668)	0	0
Capital expenditures	(75,057)	(62,830)	(53,725)
Payments to trusts for employee deferred compensation plans	(28,225)	(25,811)	(44,052)
Net cash flows used in investing activities	(117,950)	(88,641)	(97,777)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repurchases of common stock	(271,138)	(153,821)	(167,975)
Cash dividends paid	(107,561)	(97,604)	(89,187)
Decrease in notes payable and other indebtedness	(140)	(128)	(4,496)
Excess tax benefits from stock-based compensation	8,762	7,174	8,103
Proceeds from exercises of stock options	1,529	14,324	33,285
Net cash flows used in financing activities	(368,548)	(230,055)	(220,270)
Effect of exchange rate changes on cash and cash equivalents	(14,280)	(10,647)	(3,041)
Net (decrease) increase in cash and cash equivalents	(62,542)	11,355	(11,871)
Cash and cash equivalents at beginning of period	287,119	275,764	287,635
Cash and cash equivalents at end of period	224,577	287,119	275,764
Cash paid during the year for:
Interest	285	330	315
Income taxes, net of refunds	212,668	178,375	168,407
Non-cash items:
Stock repurchases awaiting settlement	$ 11,935	$ 30,152	$ 0

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Nature of Operations.    Robert Half International Inc. (the “Company”) provides specialized staffing and risk consulting services through such divisions as Accountemps^®, Robert Half^® Finance & Accounting, OfficeTeam^®, Robert Half^® Technology, Robert Half^® Management Resources, Robert Half^® Legal, The Creative Group^®, and Protiviti^®. The Company, through its Accountemps, Robert Half Finance & Accounting, and Robert Half Management Resources divisions, is a specialized provider of temporary, full-time, and senior-level project professionals in the fields of accounting and finance. OfficeTeam specializes in highly skilled temporary administrative support professionals. Robert Half Technology provides project and full-time technology professionals. Robert Half Legal provides temporary, project, and full-time staffing of lawyers, paralegals and legal support personnel. The Creative Group provides interactive, design, marketing, advertising and public relations professionals. Protiviti is a global consulting firm that helps companies solve problems in finance, technology, operations, governance, risk and internal audit, and is a wholly owned subsidiary of the Company. Revenues are predominantly derived from specialized staffing services. The Company operates in North America, South America, Europe, Asia and Australia. The Company is a Delaware corporation.

Basis of Presentation.    The Consolidated Financial Statements (“Financial Statements”) of the Company are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and the rules of the Securities and Exchange Commission (“SEC”).

Principles of Consolidation.    The Financial Statements include the accounts of the Company and its subsidiaries, all of which are wholly owned. All intercompany balances have been eliminated.

Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. As of December 31, 2015, such estimates included allowances for uncollectible accounts receivable, workers’ compensation losses and income and other taxes. Management estimates are also utilized in the Company’s goodwill impairment assessment and in the valuation of stock grants subject to market conditions.

Revenue Recognition.    The Company derives its revenues from three segments: temporary and consultant staffing, permanent placement staffing, and risk consulting and internal audit services. Net service revenues as presented on the Consolidated Statements of Operations represent services rendered to customers less sales adjustments and allowances. Reimbursements, including those related to travel and out-of-pocket expenses, are also included in net service revenues, and equivalent amounts of reimbursable expenses are included in direct costs of services. The Company records revenue on a gross basis as a principal versus on a net basis as an agent in the presentation of revenues and expenses. The Company has concluded that gross reporting is appropriate because the Company (i) has the risk of identifying and hiring qualified employees, (ii) has the discretion to select the employees and establish their price and duties and (iii) bears the risk for services that are not fully paid for by customers.

Temporary and consultant staffing revenues—Temporary and consultant staffing revenues are recognized when the services are rendered by the Company’s temporary employees. Employees placed on temporary assignment by the Company are the Company’s legal employees while they are working on assignments. The Company pays all related costs of employment, including workers’ compensation insurance, state and federal unemployment taxes, social security and certain fringe benefits. The Company assumes the risk of acceptability of its employees to its customers.

Permanent placement staffing revenues—Permanent placement staffing revenues are recognized when employment candidates accept offers of permanent employment. The Company has a substantial history of estimating the effect of permanent placement candidates who do not remain with its clients through the 90-day guarantee period. Allowances are established to estimate these losses. Fees to clients are generally calculated as a percentage of the new employee’s annual compensation. No fees for permanent placement services are charged to employment candidates.

Risk consulting and internal audit revenues—Risk consulting and internal audit services are generally provided on a time-and-material basis or fixed-fee basis. Revenues earned under time-and-material arrangements are recognized as services are provided. Revenues on fixed-fee arrangements are recognized using a proportional performance method as hours are incurred relative to total estimated hours for the engagement. The Company periodically evaluates the need to provide for any losses on these projects, and losses are recognized when it is probable that a loss will be incurred.

Costs of Services.    Direct costs of temporary and consultant staffing services consist of payroll, payroll taxes and benefit costs for the Company’s temporary employees, as well as reimbursable expenses. Direct costs of permanent placement staffing services consist of reimbursable expenses. Risk consulting and internal audit costs of services include professional staff payroll, payroll taxes and benefit costs, as well as reimbursable expenses.

Advertising Costs.    The Company expenses all advertising costs as incurred. Advertising costs for the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Advertising Costs	$	44,015	$	42,335	$	38,845

Comprehensive Income.    Comprehensive income includes net income and certain other items that are recorded directly to Stockholders’ Equity. The Company’s only source of other comprehensive income is foreign currency translation adjustments.

Fair Value of Financial Instruments.    The Company does not have any financial instruments which require re-measurement to fair value. The carrying values of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses represent fair value based upon their short-term nature.

Cash and Cash Equivalents.    The Company considers all highly liquid investments with a maturity at the date of purchase of three months or less as cash equivalents.

Goodwill and Intangible Assets.    Goodwill and intangible assets primarily consist of the cost of acquired companies in excess of the fair market value of their net tangible assets at the date of acquisition. Identifiable intangible assets are amortized over their lives, typically ranging from two to five years. Goodwill is not amortized, but is tested at least annually for impairment. The Company completed its annual goodwill impairment analysis as of June 30 in each of the three years ended December 31, 2015, and determined that no adjustment to the carrying value of goodwill was required. There were no events or changes in circumstances during the six months ended December 31, 2015 that caused the Company to perform an interim impairment assessment.

Income Tax Assets and Liabilities.    In establishing its deferred income tax assets and liabilities, the Company makes judgments and interpretations based on the enacted tax laws and published tax guidance that are applicable to its operations. Deferred tax assets and liabilities are measured and recorded using current enacted tax rates, which the Company expects will apply to taxable income in the years in which those temporary differences are recovered or settled. The likelihood of a material change in the Company’s expected realization of these assets is dependent on future taxable income, its ability to use foreign tax credit carryforwards and carrybacks, final U.S. and foreign tax settlements, and the effectiveness of its tax planning strategies in the various relevant jurisdictions.

The Company also evaluates the need for valuation allowances to reduce the deferred tax assets to realizable amounts. Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to offset future tax benefits that may not be realized. Valuation allowances of $26.3 million and $29.6 million were recorded as of December 31, 2015 and 2014, respectively. The valuation allowances recorded related primarily to net operating losses in certain foreign operations. If such losses are ultimately utilized to offset future operating income, the Company will recognize a tax benefit up to the full amount of the valuation reserve.

Workers’ Compensation.    Except for states which require participation in state-operated insurance funds, the Company retains the economic burden for the first $0.5 million per occurrence in workers’ compensation claims. Workers’ compensation includes ongoing healthcare and indemnity coverage for claims and may be paid over numerous years following the date of injury. Claims in excess of $0.5 million are insured. Workers’ compensation expense includes the insurance premiums for claims in excess of $0.5 million, claims administration fees charged by the Company’s workers’ compensation administrator, premiums paid to state-operated insurance funds, and an estimate for the Company’s liability for Incurred But Not Reported (“IBNR”) claims and for the ongoing development of existing claims.

The reserves for IBNR claims and for the ongoing development of existing claims in each reporting period includes estimates. The Company has established reserves for workers’ compensation claims using loss development rates which are estimated using periodic third party actuarial valuations based upon historical loss statistics which include the Company’s historical frequency and severity of workers’ compensation claims, and an estimate of future cost trends. While management believes that its assumptions and estimates are appropriate, significant differences in actual experience or significant changes in assumptions may materially affect the Company’s future results.

Foreign Currency Translation.    The results of operations of the Company’s foreign subsidiaries are translated at the monthly average exchange rates prevailing during the period. The financial position of the Company’s foreign subsidiaries is translated at the current exchange rates at the end of the period, and the related translation adjustments are recorded as a component of accumulated other comprehensive income within Stockholders’ Equity. Gains and losses resulting from foreign currency transactions are included as a component of selling, general and administrative expenses in the Consolidated Statements of Operations, and have not been material for all periods presented.

Stock-based Compensation.    Under various stock plans, officers, employees and outside directors have received or may receive grants of restricted stock, stock units, stock appreciation rights or options to purchase common stock.

The Company recognizes compensation expense equal to the grant-date fair value for all stock-based payment awards that are expected to vest. This expense is recorded on a straight-line basis over the requisite service period of the entire award, unless the awards are subject to performance conditions, in which case the Company recognizes compensation expense over the requisite service period of each separate vesting tranche. The Company determines the grant-date fair value of its restricted stock and stock unit awards using the fair market value of its stock on the grant date, unless the awards are subject to market conditions, in which case the Company utilizes a binomial-lattice model (i.e., Monte Carlo simulation model). The Monte Carlo simulation model utilizes multiple input variables to determine the stock-based compensation expense.

No stock appreciation rights have been granted under the Company’s existing stock plans. The Company has not granted any options to purchase common stock since 2006.

Property and Equipment.    Property and equipment are recorded at cost. Depreciation expense is computed using the straight-line method over the following useful lives:

Computer hardware	2 to 3 years
Computer software	2 to 5 years
Furniture and equipment	5 years
Leasehold improvements	Term of lease, 5 years maximum

Internal-use Software.    The Company capitalizes direct costs incurred in the development of internal-use software. Amounts capitalized are reported as a component of computer software within property and equipment. Internal-use software development costs capitalized for the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Internal-use software development costs	$	31,964	$	24,367	$	13,027

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New Accounting Pronouncements

12 Months Ended

Dec. 31, 2015

Accounting Changes and Error Corrections [Abstract]

New Accounting Pronouncements

New Accounting Pronouncements

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. In April 2014, the Financial Accounting Standards Board ("FASB") issued authoritative guidance in regards to the criteria for reporting discontinued operations while enhancing disclosures in this area. Under the new guidance, only disposals representing a strategic shift in operations should be presented as discontinued operations. In addition, the new guidance requires expanded disclosures about discontinued operations that will provide financial statement users with more information about the assets, liabilities, income, and expenses of discontinued operations. The amendments in the authoritative guidance were effective in the first quarter of 2015. The adoption of this guidance did not have a material impact on the Company's Financial Statements.

Revenue from Contracts with Customers. In May 2014, the FASB issued authoritative guidance that provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance.  The new guidance requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued a decision to delay the effective date by one year.  The new guidance is effective for annual and interim periods beginning after December 15, 2017. Public entities are not permitted to adopt the standard earlier than the original effective date (that is, no earlier than 2017 for calendar year-end entities). The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the impact of adoption of this guidance on its Financial Statements. 

Customer's Accounting for Fees Paid in a Cloud Computing Arrangement.  In April 2015, the FASB issued authoritative guidance designed to assist customers in their determination of whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change GAAP for a customer’s accounting for service contracts. This guidance is effective for annual and interim periods beginning after December 15, 2015. The Company does not expect the adoption of this guidance to have a material impact to its Financial Statements. 

Business Combinations. In September 2015, the FASB issued authoritative guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments following a business combination. The new guidance requires that an acquirer record in the same period’s financial statements the effects of the cumulative impact of adjustments including the impact on prior periods. The prior period impact of the adjustments should be presented separately on the face of the income statement or disclosed in the notes. The new guidance is effective for annual and interim periods beginning after December 15, 2015 for public business entities. The amendments should be applied prospectively to adjustments to provisional amounts that occur after the effective date with earlier application permitted for financial statements that have not been issued. The Company does not expect the adoption of this guidance to have a material impact on its Financial Statements.

Balance Sheet Classification of Deferred Taxes. In November 2015, the FASB issued authoritative guidance which changes how deferred taxes are classified on a company's balance sheet. The new guidance eliminates the current requirement for companies to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, companies will be required to classify all deferred tax assets and liabilities as noncurrent. The new guidance is effective for annual reporting periods beginning after December 15, 2016. Early adoption is permitted for all entities as of the beginning of an interim or annual reporting period. The guidance may be applied either prospectively, for all deferred tax assets and liabilities, or retrospectively (i.e., by reclassifying the comparative balance sheet). If applied prospectively, entities are required to include a statement that prior periods were not retrospectively adjusted. If applied retrospectively, entities are also required to include quantitative information about the effects of the change on prior periods. The Company is in the process of evaluating the impact of adoption of this guidance on its Financial Statements.

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Other Current Assets

12 Months Ended

Dec. 31, 2015

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Current Assets

Other Current Assets

Other current assets consisted of the following (in thousands):

	December 31,
	2015		2014
Deposits in trusts for employee deferred compensation plans	$	198,256	$	172,237
Other	70,524		73,100
	$	268,780	$	245,337

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Goodwill

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

The following table sets forth the activity in goodwill from December 31, 2013, through December 31, 2015 (in thousands):

	Goodwill
	Temporary and consultant staffing			Permanent placement staffing			Risk consulting and internal audit services			Total
Balance as of December 31, 2013	$	134,692		$	26,574		$	39,567		$	200,833
Acquisitions	—			—			—			—
Foreign currency translation adjustments	(728		)	(124		)	(493		)	(1,345		)
Balance as of December 31, 2014	$	133,964		$	26,450		$	39,074		$	199,488
Acquisitions	—			—			10,988			10,988
Foreign currency translation adjustments	(791		)	(199		)	(907		)	(1,897		)
Balance as of December 31, 2015	$	133,173		$	26,251		$	49,155		$	208,579

In November 2015 the Company, through its wholly owned subsidiary Protiviti, acquired certain assets of Decision First Technologies, a company specializing in business intelligence solutions. As part of the asset acquisition, the Company recorded goodwill of $11 million within its risk consulting and internal audit services segment.

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Property and Equipment, Net

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Property and Equipment, Net

Property and Equipment, Net

Property and equipment consisted of the following (in thousands):

	December 31,
	2015			2014
Computer hardware	$	162,346		$	159,309
Computer software	339,634			312,968
Furniture and equipment	96,536			105,262
Leasehold improvements	118,491			113,782
Other	9,560			9,045
Property and equipment, cost	726,567			700,366
Accumulated depreciation	(583,661		)	(578,612		)
Property and equipment, net	$	142,906		$	121,754

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Accrued Payroll and Benefit Costs

12 Months Ended

Dec. 31, 2015

Payables and Accruals [Abstract]

Accrued Payroll and Benefit Costs

Accrued Payroll and Benefit Costs

Accrued payroll and benefit costs consisted of the following (in thousands):

	December 31,
	2015		2014
Payroll and benefits	$	240,793	$	213,962
Employee deferred compensation plans	212,220		181,709
Workers’ compensation	25,834		26,127
Payroll taxes	25,935		26,317
Accrued payroll and benefit costs	$	504,782	$	448,115

Included in employee deferred compensation plans is the following (in thousands):

	December 31,
	2015		2014
Deferred compensation plan and other benefits related to the Company’s Chief Executive Officer	$	81,874	$	79,060

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Notes Payable and Other Indebtedness

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Notes Payable and Other Indebtedness

Notes Payable and Other Indebtedness

The Company issued promissory notes as well as other forms of indebtedness in connection with certain acquisitions and other payment obligations. These are due in varying installments, carry varying interest rates and, in aggregate, amounted to $1.2 million at December 31, 2015, and $1.3 million at December 31, 2014. At December 31, 2015, $1.2 million of the notes were collateralized by a standby letter of credit. The following table shows the schedule of maturities for notes payable and other indebtedness at December 31, 2015 (in thousands):

2016	$	153
2017	167
2018	183
2019	200
2020	218
Thereafter	239
	$	1,160

At December 31, 2015, the notes carried fixed rates and the weighted average interest rate for the above was 9.0% for each of the years ended December 31, 2015, 2014 and 2013.

The Company has an uncommitted letter of credit facility (the “facility”) of up to $35.0 million, which is available to cover the issuance of debt support standby letters of credit. The Company had used $13.5 million in debt support standby letters of credit as of December 31, 2015 and $16.6 million as of December 31, 2014. Of the debt support standby letters of credit outstanding, $12.3 million as of December 31, 2015 and $15.3 million as of December 31, 2014, satisfies workers’ compensation insurer’s collateral requirements. There is a service fee of 1.125% on the used portion of the facility. The facility is subject to certain financial covenants and expires on August 31, 2016. The Company intends to renew this facility prior to its August 31, 2016 expiration.

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Income Taxes

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2015, 2014 and 2013, consisted of the following (in thousands):

	Years Ended December 31,
	2015			2014			2013
Current:
Federal	$	181,640		$	146,633		$	114,687
State	36,281			33,054			27,358
Foreign	13,892			15,377			16,598
Deferred:
Federal and state	(8,398		)	(4,626		)	(7,759		)
Foreign	(181		)	983			(5,500		)
	$	223,234		$	191,421		$	145,384

Income before the provision for income taxes for the years ended December 31, 2015, 2014 and 2013, consisted of the following (in thousands):

	Years Ended December 31,
	2015		2014		2013
Domestic	$	520,263	$	449,834	$	357,382
Foreign	60,767		47,515		40,197
	$	581,030	$	497,349	$	397,579

The income taxes shown above varied from the statutory federal income tax rates for these periods as follows:

	Years Ended December 31,
	2015		2014		2013
Federal U.S. income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	4.2		4.2		4.3
Non-deductible expenses	0.5		0.6		0.7
Non-U.S. income taxed at different rates, net of foreign tax credits	0.1		(0.2	)	(1.0	)
Federal tax credits	(0.6	)	(0.6	)	(1.3	)
Tax impact of uncertain tax positions	(0.2	)	(0.1	)	0.1
Valuation allowance release, net	(0.5	)	(0.3	)	(1.0	)
Other, net	(0.1	)	(0.1	)	(0.2	)
Effective tax rate	38.4	%	38.5	%	36.6	%

The deferred portion of the tax provision (benefit) consisted of the following (in thousands):

	Years Ended December 31,
	2015			2014			2013
Amortization of franchise rights	$	514		$	514		$	514
Amortization of other intangibles	1,590			1,241			621
Accrued expenses, deducted for tax when paid	(17,664		)	(14,221		)	(11,190		)
Capitalized costs for books, deducted for tax	5,315			8,809			3,019
Depreciation	(5,932		)	(4,147		)	(2,597		)
Federal impact of unrecognized tax benefits	1,058			44			(274		)
Foreign tax credit carryforwards	3,636			(186		)	(3,449		)
Other, net	2,904			4,303			97
	$	(8,579	)	$	(3,643	)	$	(13,259	)

The deferred income tax amounts included on the Consolidated Statements of Financial Position are composed of the following (in thousands):

	December 31,
	2015			2014
Current deferred income tax assets, net	$	145,684		$	133,151
Long-term deferred income tax liabilities, net	(29,139		)	(26,807		)
	$	116,545		$	106,344

The components of the deferred income tax amounts at December 31, 2015 and 2014, were as follows (in thousands):

	December 31,
	2015			2014
Deferred Income Tax Assets
Provision for bad debts	$	11,092		$	9,210
Deferred compensation and other benefit obligations	96,948			83,065
Workers’ compensation	8,206			9,138
Stock-based compensation	15,814			14,572
Credits and net operating loss carryforwards	35,499			39,309
Other	23,885			25,316
Total deferred income tax assets	191,444			180,610
Deferred Income Tax Liabilities
Amortization of intangible assets	(26,960		)	(25,060		)
Property and equipment basis differences	(11,890		)	(12,384		)
Other	(9,720		)	(7,261		)
Total deferred income tax liabilities	(48,570		)	(44,705		)
Valuation allowance	(26,329		)	(29,561		)
Total deferred income tax assets, net	$	116,545		$	106,344

Credits and net operating loss carryforwards primarily include net operating losses in foreign countries of $27.9 million that expire in 2016 and later; and California enterprise zone tax credits of $4.3 million that expire in 2023. Valuation allowances of $24.5 million and $1.8 million have been established for net operating losses carryforwards in foreign countries and California enterprise zone tax credits, respectively.

The Company has not provided deferred income taxes or foreign withholding taxes on $5.7 million and $3.7 million of undistributed earnings of its non-U.S. subsidiaries as of December 31, 2015 and 2014, respectively, since the Company intends to reinvest these earnings indefinitely. The U.S. tax impact upon repatriation, net of foreign tax credits, would be zero for the years ended December 31, 2015 and 2014.

FASB authoritative guidance prescribes a recognition threshold and measurement attribute criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The literature also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition.

The following table reconciles the total amounts of gross unrecognized tax benefits from January 1, 2013 to December 31, 2015 (in thousands):

	December 31,
	2015			2014			2013
Balance at beginning of period	$	4,573		$	6,110		$	7,097
Gross increases—tax positions in prior years	—			1			559
Gross decreases—tax positions in prior years	(1,807		)	(333		)	(369		)
Gross increases—tax positions in current year	120			35			38
Settlements	(520		)	—			—
Lapse of statute of limitations	(1,552		)	(1,240		)	(1,215		)
Balance at end of period	$	814		$	4,573		$	6,110

The total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate is $0.5 million, $0.9 million and $1.3 million for 2015, 2014 and 2013, respectively.

The Company’s continuing practice is to recognize interest and penalties related to income tax matters in income tax expense. The total amount of interest and penalties accrued as of December 31, 2015, is $0.2 million, including a $2.3 million reduction recorded in income tax expense during the year. The total amount of interest and penalties accrued as of December 31, 2014 is $2.5 million, including a $0.3 million reduction recorded in income tax expense during the year. The total amount of interest and penalties accrued as of December 31, 2013, was $2.8 million, including a $0.3 million reduction recorded in income tax expense during the year.

The Company believes it is reasonably possible that the settlement of certain tax uncertainties could occur within the next twelve months; accordingly, $0.3 million of the unrecognized gross tax benefit has been classified as a current liability as of December 31, 2015. This amount primarily represents unrecognized tax benefits composed of items related to assessed state income tax audits and negotiations.

The Company’s major income tax jurisdictions are the United States, Australia, Belgium, Canada, France, Germany and the United Kingdom. For U.S. federal income tax, the Company remains subject to examination for 2012 and subsequent years. For major U.S. states, with few exceptions, the Company remains subject to examination for 2011 and subsequent years. Generally, for the foreign countries, the Company remains subject to examination for 2008 and subsequent years.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Rental expense, primarily for office premises, amounted to $85.9 million, $89.9 million and $92.7 million for the years ended December 31, 2015, 2014 and 2013, respectively. The approximate minimum rental commitments for 2016 and thereafter under non-cancelable leases in effect at December 31, 2015 were as follows (in thousands):

2016	$	88,177
2017	74,939
2018	56,425
2019	42,763
2020	37,668
Thereafter	81,437
	$	381,409

On April 23, 2010, Plaintiffs David Opalinski and James McCabe, on behalf of themselves and a putative class of similarly situated Staffing Managers, filed a Complaint in the United States District Court for the District of New Jersey naming the Company and one of its subsidiaries as Defendants. The Complaint alleges that salaried Staffing Managers located throughout the U.S. have been misclassified as exempt from the Fair Labor Standards Act’s overtime pay requirements. Plaintiffs seek an unspecified amount for unpaid overtime on behalf of themselves and the class they purport to represent. Plaintiffs also seek an unspecified amount for statutory penalties, attorneys’ fees and other damages. On October 6, 2011, the Court granted the Company’s motion to compel arbitration of the Plaintiffs’ allegations. At this stage, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from these allegations and, accordingly, no amounts have been provided in the Company’s financial statements. The Company believes it has meritorious defenses to the allegations, and the Company intends to continue to vigorously defend against the allegations.

On March 13, 2014, Plaintiff Leonor Rodriguez, on her own behalf and on behalf of a putative class of allegedly similarly situated individuals, filed a complaint against the Company in the Superior Court of California, San Diego County. The complaint alleges that a putative class of current and former employees of the Company working in California since March 13, 2011 were denied compensation for the time they spent interviewing with clients of the Company as well as performing activities related to the interview process. Rodriguez seeks recovery on her own behalf and on behalf of the putative class in an unspecified amount for this allegedly unpaid compensation. Rodriguez also seeks recovery of an unspecified amount for the alleged failure of the Company to provide her and the putative class with accurate wage statements. Rodriguez also seeks an unspecified amount of other damages, attorneys’ fees, and statutory penalties, including but not limited to statutory penalties on behalf of herself and other allegedly “aggrieved employees” as defined by California’s Labor Code Private Attorney General Act (“PAGA”). On October 10, 2014, the Court granted a motion by the Company to compel all of Rodriguez’s claims, except the PAGA claim, to individual arbitration. At this stage of the litigation, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from this proceeding and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations and the Company intends to continue to vigorously defend against the litigation.

On March 23, 2015, Plaintiff Jessica Gentry, on her own behalf and on behalf of a putative class of allegedly similarly situated individuals, filed a complaint against the Company in the Superior Court of California, San Francisco County, which was subsequently amended on October 23, 2015. The complaint, which was filed by the same plaintiffs’ law firm that brought the Rodriguez matter described above, alleges claims similar to those alleged in Rodriguez. Specifically, the complaint alleges that a putative class of current and former employees of the Company working in California since March 13, 2010 were denied compensation for the time they spent interviewing “for temporary and permanent employment opportunities” as well as performing activities related to the interview process. Gentry seeks recovery on her own behalf and on behalf of the putative class in an unspecified amount for this allegedly unpaid compensation. Gentry also seeks recovery of an unspecified amount for the alleged failure of the Company to provide her and the putative class with accurate wage statements. Gentry also seeks an unspecified amount of other damages, attorneys’ fees, and statutory penalties, including penalties for allegedly not paying all wages due upon separation to former employees and statutory penalties on behalf of herself and other allegedly “aggrieved employees” as defined by PAGA. On January 4, 2016, the Court denied a motion by the Company to compel all of Gentry’s claims, except the PAGA claim, to individual arbitration. At this stage of the litigation, it is not feasible to predict the outcome of or a range of loss, should a loss occur, from this proceeding and, accordingly, no amounts have been provided in the Company’s Financial Statements. The Company believes it has meritorious defenses to the allegations and the Company intends to continue to vigorously defend against the litigation.

The Company is involved in a number of other lawsuits arising in the ordinary course of business. While management does not expect any of these other matters to have a material adverse effect on the Company’s results of operations, financial position or cash flows, litigation is subject to certain inherent uncertainties.

Legal costs associated with the resolution of claims, lawsuits and other contingencies are expensed as incurred.

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Stockholders' Equity

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

Stock Repurchase Program.    As of December 31, 2015, the Company is authorized to repurchase, from time to time, up to 10.4 million additional shares of the Company’s common stock on the open market or in privately negotiated transactions, depending on market conditions. The number and the cost of common stock shares repurchased during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Common stock repurchased (in shares)	4,343		3,336		3,305
Common stock repurchased	$	228,166	$	161,587	$	117,864

Additional stock repurchases were made in connection with employee stock plans, whereby Company shares were tendered by employees for the payment of exercise price and applicable statutory withholding taxes. The number and the cost of employee stock plan repurchases made during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Employee stock plan repurchased (in shares)	474		462		1,157
Employee stock plan repurchased	$	24,755	$	22,386	$	44,169

The repurchased shares are held in treasury and are presented as if constructively retired. Treasury stock is accounted for using the cost method. Treasury stock activity for each of the three years ended December 31, 2015, 2014 and 2013 (consisting of stock option exercises and the purchase of shares for the treasury) is presented in the Consolidated Statements of Stockholders’ Equity.

Cash Dividends. The Company’s Board of Directors may at their discretion declare and pay dividends upon the shares of the Company’s stock either out of the Company’s retained earnings or capital surplus. The cash dividends declared during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table:

	Years Ended December 31,
	2015		2014		2013
Cash dividends declared per share	$	.80	$	.72	$	.64

Repurchases of shares and issuances of cash dividends are applied first to the extent of retained earnings and any remaining amounts are applied to capital surplus.

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Stock Plans

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Plans

Stock Plans

Under various stock plans, officers, employees, and outside directors have received or may receive grants of restricted stock, stock units, stock appreciation rights or options to purchase common stock. Grants have been made at the discretion of the Committees of the Board of Directors. Grants generally vest either on a straight-line basis over four years or on a cliff basis over three years. Shares offered under the plan are authorized but unissued shares or treasury shares.

Options currently outstanding under the plans have an exercise price equal to the fair market value of the Company’s common stock at the date of grant and consist of non-statutory stock options under the Internal Revenue Code, and generally have a term of 10 years. The Company has not granted any options to purchase common stock since 2006.

Recipients of restricted stock do not pay any cash consideration to the Company for the shares, have the right to vote all shares subject to such grant, and for grants made prior to July 28, 2009, receive all dividends with respect to such shares on the dividend payment dates, whether or not the shares have vested as long as any performance condition has been met. Restricted stock grants made on or after July 28, 2009, contain forfeitable rights to dividends. Dividends for these grants are accrued on the dividend payment dates but are not paid until the shares vest, and dividends accrued for shares that ultimately do not vest are forfeited. Recipients of stock units do not pay any cash consideration for the units, do not have the right to vote, and do not receive dividends with respect to such units.

FASB authoritative guidance requires that excess tax benefits be recognized as an addition to capital surplus and that unrealized tax benefits be recognized as income tax expense unless there are excess tax benefits from previous equity awards to which it can be offset. The Company calculates the amount of eligible excess tax benefits that are available to offset future tax shortfalls in accordance with the long-form method described in the FASB authoritative guidance.

The Company recognizes compensation expense equal to the grant-date fair value for all stock-based payment awards that are expected to vest. This expense is recorded on a straight-line basis over the requisite service period of the entire award, unless the awards are subject to performance conditions, in which case the Company recognizes compensation expense over the requisite service period of each separate vesting tranche. The Company determines the grant-date fair value of its restricted stock and stock unit awards using the fair market value on the grant date, unless the awards are subject to market conditions, in which case the Company utilizes a binomial-lattice model (i.e., Monte Carlo simulation model). The Monte Carlo simulation model utilizes multiple input variables to determine the stock-based compensation expense.

During the year ended December 31, 2015, the Company granted performance shares to its executives in the form of restricted stock. The shares granted contain (1) a performance condition based on target net income per share, and (2) a market condition based on Total Shareholder Return (“TSR”). The TSR market condition measures the Company’s performance against a peer group. Shares will be delivered at the end of the three year vesting and TSR performance period based on the Company’s actual performance compared to the peer group. Actual shares earned will range from fifty percent (50%) to one hundred fifty percent (150%) of the target award after any adjustment made for the performance condition. The fair value of this award was determined using a Monte Carlo simulation with the following assumptions: an historical volatility of 23.70%, 0% dividend yield and a risk-free interest rate of 0.84%. The historical volatility was based on the most recent 2.76-year period for the Company and the components of the peer group. The stock price projection for the Company and the components of the peer group assumes a 0% dividend yield. This is mathematically equivalent to reinvesting dividends in the issuing entity over the performance period. The risk-free interest rate is equal to the yield, as of the measurement date, of the zero-coupon U.S. Treasury bill that is commensurate with the remaining performance measurement period.

Stock-based compensation expense consisted of the following (in thousands):

	Years Ended December 31,
	2015		2014		2013
Restricted stock and stock units	$	41,292	$	40,821	$	38,867

Unrecognized compensation cost is expected to be recognized over the next four years. Total unrecognized compensation cost, net of estimated forfeitures, consisted of the following (in thousands):

	December 31,
	2015		2014		2013
Restricted stock and stock units	$	60,627	$	54,968	$	53,646

The following table reflects activity under all stock plans from December 31, 2012 through December 31, 2015, and the weighted average exercise prices (in thousands, except per share amounts):

	Restricted Stock Plans without Market-Condition				Restricted Stock Plans with Market-Condition				Stock Option Plans
	Number of Shares/ Units			Weighted Average Grant Date Fair Value	Number of Shares/ Units			Weighted Average Grant Date Fair Value	Number of Shares/ Units			Weighted Average Exercise Price Per Share
Outstanding, December 31, 2012		1,737		$28.25		758		$30.77		2,091		$24.80
Granted		688		$35.34		400		$42.04		—		—
Exercised		—		—		—		—		(1,397	)	$23.82
Restrictions lapsed		(1,087	)	$28.53		(259	)	$29.53		—		—
Forfeited		(21	)	$31.29		—		—		(62	)	$20.48
Outstanding, December 31, 2013		1,317		$31.68		899		$36.58		632		$27.41
Granted		585		$41.60		335		$50.09		—		—
Exercised		—		—		—		—		(528	)	$27.12
Restrictions lapsed		(712	)	$31.96		—		—		—		—
Forfeited		(25	)	$32.82		—		—		(27	)	$27.83
Outstanding, December 31, 2014		1,165		$36.47		1,234		$40.24		77		$29.22
Granted		502		$58.14		257		$71.86		—		—
Exercised		—		—		—		—		(54	)	$28.18
Restrictions lapsed		(599	)	$36.30		(499	)	$31.41		—		—
Forfeited		(16	)	$37.63		—		—		(11	)	$30.94
Outstanding, December 31, 2015		1,052		$46.88		992		$52.89		12		$32.36

The total pre-tax intrinsic value of stock options exercised and the total fair value of shares vested during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Total pre-tax intrinsic value of stock options exercised	$	1,709	$	9,150	$	17,092
Total fair value of shares vested	$	56,570	$	38,566	$	53,931

The following table summarizes information about options outstanding and exercisable as of December 31, 2015 (in thousands, except number of years and per share amounts):

	Options Outstanding and Exercisable
Range of Exercise Prices	Number Outstanding and Exercisable as of December 31, 2015		Weighted Average Remaining Contractual Life	Weighted Average Exercise Price	Aggregate Intrinsic Value
$32.36 to $32.36		12	0.57	$32.36		$	179

The aggregate intrinsic value in the preceding table represents the total pre-tax intrinsic value, based on the Company’s closing stock price of $47.14 as of December 31, 2015, which would have been received by the option holders had they exercised their in-the-money options as of that date.

At December 31, 2015, the total number of available shares to grant under the plans (consisting of either restricted stock, stock units, stock appreciation rights or options to purchase common stock) was approximately 5.8 million. All of the 12 thousand options outstanding at December 31, 2015, were exercisable with a weighted average exercise price of $32.36.

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Net Income Per Share

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Net Income Per Share

Net Income Per Share

The calculation of net income per share for the three years ended December 31, 2015 is reflected in the following table (in thousands, except per share amounts):

	Years Ended December 31,
	2015		2014		2013
Basic net income per share:
Net income	$	357,796	$	305,928	$	252,195
Income allocated to participating securities	—		—		3
Net income available to common stockholders	$	357,796	$	305,928	$	252,192
Basic weighted average shares	131,749		134,358		136,153
Basic net income per share	$	2.72	$	2.28	$	1.85
Diluted net income per share:
Net income	$	357,796	$	305,928	$	252,195
Income allocated to participating securities	—		—		3
Net income available to common stockholders	$	357,796	$	305,928	$	252,192
Basic weighted average shares	131,749		134,358		136,153
Dilutive effect of potential common shares	1,181		1,183		1,436
Diluted weighted average shares	132,930		135,541		137,589
Diluted net income per share	$	2.69	$	2.26	$	1.83

Potential common shares include the dilutive effect of stock options, unvested performance-based restricted stock, restricted stock which contains forfeitable rights to dividends, and stock units.

Employee stock options will have a dilutive effect under the treasury method only when the respective period’s average market value of the Company’s common stock exceeds the exercise proceeds. Under the treasury method, exercise proceeds include the amount the employee must pay for exercising stock options, the amount of compensation cost for future service that the Company has not yet recognized, and the amount of tax benefits that would be recorded in capital surplus, if the options were exercised and the stock units and performance-based restricted stock had vested.

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Business Segments

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Business Segments

Business Segments

The Company, which aggregates its operating segments based on the nature of services, has three reportable segments: temporary and consultant staffing, permanent placement staffing, and risk consulting and internal audit services. The temporary and consultant segment provides specialized staffing in the accounting and finance, administrative and office, information technology, legal, advertising, marketing and web design fields. The permanent placement segment provides full-time personnel in the accounting, finance, administrative and office, and information technology fields. The risk consulting segment provides business and technology risk consulting and internal audit services.

The accounting policies of the segments are set forth in Note A—Summary of Significant Accounting Policies. The Company evaluates performance based on income from operations before net interest income, intangible amortization expense, and income taxes.

The following table provides a reconciliation of revenue and operating income by reportable segment to consolidated results (in thousands):

	Years Ended December 31,
	2015			2014			2013
Net service revenues
Temporary and consultant staffing	$	3,930,843		$	3,676,281		$	3,369,840
Permanent placement staffing	421,411			394,515			347,715
Risk consulting and internal audit services	742,679			624,218			528,340
	$	5,094,933		$	4,695,014		$	4,245,895
Operating income
Temporary and consultant staffing	$	399,808		$	358,533		$	301,185
Permanent placement staffing	85,019			78,333			54,390
Risk consulting and internal audit services	95,845			60,316			42,702
	580,672			497,182			398,277
Amortization of intangible assets	192			557			1,700
Interest income, net	(550		)	(724		)	(1,002		)
Income before income taxes	$	581,030		$	497,349		$	397,579

The Company does not report total assets by segment. The following tables represent identifiable assets by business segment (in thousands):

	December 31,
	2015		2014		2013
Accounts receivable
Temporary and consultant staffing	$	425,179	$	403,615	$	349,364
Permanent placement staffing	121,670		115,563		100,550
Risk consulting and internal audit services	192,878		169,042		129,252
	$	739,727	$	688,220	$	579,166
	December 31,
	2015		2014		2013
Goodwill
Temporary and consultant staffing	$	133,173	$	133,964	$	134,692
Permanent placement staffing	26,251		26,450		26,574
Risk consulting and internal audit services	49,155		39,074		39,567
	$	208,579	$	199,488	$	200,833

The Company operates internationally, with operations in North America, South America, Europe, Asia and Australia. The following tables represent revenues and long-lived assets by geographic location (in thousands):

	Years Ended December 31,
	2015		2014		2013
Net service revenues (a)
Domestic	$	4,105,013	$	3,623,812	$	3,219,820
Foreign (b)	989,920		1,071,202		1,026,075
	$	5,094,933	$	4,695,014	$	4,245,895
	December 31,
	2015		2014		2013
Assets, long-lived
Domestic	$	117,176	$	101,181	$	92,252
Foreign	25,730		20,573		20,392
	$	142,906	$	121,754	$	112,644

(a) There were no customers that accounted for more than 10% of the Company's total net revenue in any year presented.

(b) No individual country represented more than 10% of revenues in any year presented.

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Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

Quarterly Financial Data (Unaudited)

The following tabulation shows certain quarterly financial data for 2015 and 2014 (in thousands, except per share amounts):

	Quarter
2015	1		2		3		4
Net service revenues	$	1,205,563	$	1,272,058	$	1,312,718	$	1,304,594
Gross margin	$	494,087	$	530,502	$	549,801	$	540,081
Income before income taxes	$	128,174	$	149,235	$	159,306	$	144,315
Net income	$	77,922	$	89,706	$	96,725	$	93,443
Basic net income per share	$	.59	$	.68	$	.74	$	.71
Diluted net income per share	$	.58	$	.67	$	.73	$	.71

	Quarter
2014	1		2		3		4
Net service revenues	$	1,084,342	$	1,164,914	$	1,224,308	$	1,221,450
Gross margin	$	438,495	$	478,444	$	505,220	$	500,757
Income before income taxes	$	102,014	$	123,653	$	138,361	$	133,321
Net income	$	61,551	$	75,140	$	85,184	$	84,053
Basic net income per share	$	.45	$	.56	$	.64	$	.63
Diluted net income per share	$	.45	$	.55	$	.63	$	.62

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Subsequent Events

12 Months Ended

Dec. 31, 2015

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

On February 11, 2016 the Company announced the following:

Quarterly dividend per share	$.22
Declaration date	February 11, 2016
Record date	February 25, 2016
Payment date	March 15, 2016

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Schedule II-Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2015

Valuation and Qualifying Accounts [Abstract]

Schedule II-Valuation and Qualifying Accounts

Schedule II—Valuation and Qualifying Accounts

(in thousands)

	Balance at Beginning of Period	Charged to Expenses	Deductions	Translation Adjustments	Balance at End of Period
Year Ended December 31, 2013
Allowance for doubtful accounts receivable	$24,852	7,467	(4,313)	(745)	$27,261
Deferred tax valuation allowance	$39,310	7,053	(8,135)	(1,184)	$37,044
Year Ended December 31, 2014
Allowance for doubtful accounts receivable	$27,261	9,825	(3,670)	(2,872)	$30,544
Deferred tax valuation allowance	$37,044	1,742	(6,056)	(3,169)	$29,561
Year Ended December 31, 2015
Allowance for doubtful accounts receivable	$30,544	12,005	(5,353)	(2,109)	$35,087
Deferred tax valuation allowance	$29,561	6,283	(8,068)	(1,447)	$26,329

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation.    The Consolidated Financial Statements (“Financial Statements”) of the Company are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and the rules of the Securities and Exchange Commission (“SEC”).

Principles of Consolidation

Principles of Consolidation.    The Financial Statements include the accounts of the Company and its subsidiaries, all of which are wholly owned. All intercompany balances have been eliminated.

Use of Estimates

Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. As of December 31, 2015, such estimates included allowances for uncollectible accounts receivable, workers’ compensation losses and income and other taxes. Management estimates are also utilized in the Company’s goodwill impairment assessment and in the valuation of stock grants subject to market conditions.

Revenue Recognition

Revenue Recognition.    The Company derives its revenues from three segments: temporary and consultant staffing, permanent placement staffing, and risk consulting and internal audit services. Net service revenues as presented on the Consolidated Statements of Operations represent services rendered to customers less sales adjustments and allowances. Reimbursements, including those related to travel and out-of-pocket expenses, are also included in net service revenues, and equivalent amounts of reimbursable expenses are included in direct costs of services. The Company records revenue on a gross basis as a principal versus on a net basis as an agent in the presentation of revenues and expenses. The Company has concluded that gross reporting is appropriate because the Company (i) has the risk of identifying and hiring qualified employees, (ii) has the discretion to select the employees and establish their price and duties and (iii) bears the risk for services that are not fully paid for by customers.

Temporary and consultant staffing revenues—Temporary and consultant staffing revenues are recognized when the services are rendered by the Company’s temporary employees. Employees placed on temporary assignment by the Company are the Company’s legal employees while they are working on assignments. The Company pays all related costs of employment, including workers’ compensation insurance, state and federal unemployment taxes, social security and certain fringe benefits. The Company assumes the risk of acceptability of its employees to its customers.

Permanent placement staffing revenues—Permanent placement staffing revenues are recognized when employment candidates accept offers of permanent employment. The Company has a substantial history of estimating the effect of permanent placement candidates who do not remain with its clients through the 90-day guarantee period. Allowances are established to estimate these losses. Fees to clients are generally calculated as a percentage of the new employee’s annual compensation. No fees for permanent placement services are charged to employment candidates.

Risk consulting and internal audit revenues—Risk consulting and internal audit services are generally provided on a time-and-material basis or fixed-fee basis. Revenues earned under time-and-material arrangements are recognized as services are provided. Revenues on fixed-fee arrangements are recognized using a proportional performance method as hours are incurred relative to total estimated hours for the engagement. The Company periodically evaluates the need to provide for any losses on these projects, and losses are recognized when it is probable that a loss will be incurred.

Costs of Services

Costs of Services.    Direct costs of temporary and consultant staffing services consist of payroll, payroll taxes and benefit costs for the Company’s temporary employees, as well as reimbursable expenses. Direct costs of permanent placement staffing services consist of reimbursable expenses. Risk consulting and internal audit costs of services include professional staff payroll, payroll taxes and benefit costs, as well as reimbursable expenses.

Advertising Costs

Advertising Costs.    The Company expenses all advertising costs as incurred.

Comprehensive Income

Comprehensive Income.    Comprehensive income includes net income and certain other items that are recorded directly to Stockholders’ Equity. The Company’s only source of other comprehensive income is foreign currency translation adjustments.

Fair Value of Financial Instruments

Fair Value of Financial Instruments.    The Company does not have any financial instruments which require re-measurement to fair value. The carrying values of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses represent fair value based upon their short-term nature.

Cash and Cash Equivalents

Cash and Cash Equivalents.    The Company considers all highly liquid investments with a maturity at the date of purchase of three months or less as cash equivalents.

Goodwill and Intangible Assets

Goodwill and Intangible Assets.    Goodwill and intangible assets primarily consist of the cost of acquired companies in excess of the fair market value of their net tangible assets at the date of acquisition. Identifiable intangible assets are amortized over their lives, typically ranging from two to five years. Goodwill is not amortized, but is tested at least annually for impairment. The Company completed its annual goodwill impairment analysis as of June 30 in each of the three years ended December 31, 2015, and determined that no adjustment to the carrying value of goodwill was required. There were no events or changes in circumstances during the six months ended December 31, 2015 that caused the Company to perform an interim impairment assessment.

Income Tax Assets and Liabilities

Income Tax Assets and Liabilities.    In establishing its deferred income tax assets and liabilities, the Company makes judgments and interpretations based on the enacted tax laws and published tax guidance that are applicable to its operations. Deferred tax assets and liabilities are measured and recorded using current enacted tax rates, which the Company expects will apply to taxable income in the years in which those temporary differences are recovered or settled. The likelihood of a material change in the Company’s expected realization of these assets is dependent on future taxable income, its ability to use foreign tax credit carryforwards and carrybacks, final U.S. and foreign tax settlements, and the effectiveness of its tax planning strategies in the various relevant jurisdictions.

The Company also evaluates the need for valuation allowances to reduce the deferred tax assets to realizable amounts. Management evaluates all positive and negative evidence and uses judgment regarding past and future events, including operating results, to help determine when it is more likely than not that all or some portion of the deferred tax assets may not be realized. When appropriate, a valuation allowance is recorded against deferred tax assets to offset future tax benefits that may not be realized. Valuation allowances of $26.3 million and $29.6 million were recorded as of December 31, 2015 and 2014, respectively. The valuation allowances recorded related primarily to net operating losses in certain foreign operations. If such losses are ultimately utilized to offset future operating income, the Company will recognize a tax benefit up to the full amount of the valuation reserve.

Workers' Compensation

Workers’ Compensation.    Except for states which require participation in state-operated insurance funds, the Company retains the economic burden for the first $0.5 million per occurrence in workers’ compensation claims. Workers’ compensation includes ongoing healthcare and indemnity coverage for claims and may be paid over numerous years following the date of injury. Claims in excess of $0.5 million are insured. Workers’ compensation expense includes the insurance premiums for claims in excess of $0.5 million, claims administration fees charged by the Company’s workers’ compensation administrator, premiums paid to state-operated insurance funds, and an estimate for the Company’s liability for Incurred But Not Reported (“IBNR”) claims and for the ongoing development of existing claims.

The reserves for IBNR claims and for the ongoing development of existing claims in each reporting period includes estimates. The Company has established reserves for workers’ compensation claims using loss development rates which are estimated using periodic third party actuarial valuations based upon historical loss statistics which include the Company’s historical frequency and severity of workers’ compensation claims, and an estimate of future cost trends. While management believes that its assumptions and estimates are appropriate, significant differences in actual experience or significant changes in assumptions may materially affect the Company’s future results.

Foreign Currency Translation

Foreign Currency Translation.    The results of operations of the Company’s foreign subsidiaries are translated at the monthly average exchange rates prevailing during the period. The financial position of the Company’s foreign subsidiaries is translated at the current exchange rates at the end of the period, and the related translation adjustments are recorded as a component of accumulated other comprehensive income within Stockholders’ Equity. Gains and losses resulting from foreign currency transactions are included as a component of selling, general and administrative expenses in the Consolidated Statements of Operations, and have not been material for all periods presented.

Stock-based Compensation

Stock-based Compensation.    Under various stock plans, officers, employees and outside directors have received or may receive grants of restricted stock, stock units, stock appreciation rights or options to purchase common stock.

The Company recognizes compensation expense equal to the grant-date fair value for all stock-based payment awards that are expected to vest. This expense is recorded on a straight-line basis over the requisite service period of the entire award, unless the awards are subject to performance conditions, in which case the Company recognizes compensation expense over the requisite service period of each separate vesting tranche. The Company determines the grant-date fair value of its restricted stock and stock unit awards using the fair market value of its stock on the grant date, unless the awards are subject to market conditions, in which case the Company utilizes a binomial-lattice model (i.e., Monte Carlo simulation model). The Monte Carlo simulation model utilizes multiple input variables to determine the stock-based compensation expense.

Property and Equipment

Property and Equipment.    Property and equipment are recorded at cost. Depreciation expense is computed using the straight-line method over the following useful lives:

Computer hardware	2 to 3 years
Computer software	2 to 5 years
Furniture and equipment	5 years
Leasehold improvements	Term of lease, 5 years maximum

Internal-use Software

Internal-use Software.    The Company capitalizes direct costs incurred in the development of internal-use software. Amounts capitalized are reported as a component of computer software within property and equipment.

New Accounting Pronouncements

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. In April 2014, the Financial Accounting Standards Board ("FASB") issued authoritative guidance in regards to the criteria for reporting discontinued operations while enhancing disclosures in this area. Under the new guidance, only disposals representing a strategic shift in operations should be presented as discontinued operations. In addition, the new guidance requires expanded disclosures about discontinued operations that will provide financial statement users with more information about the assets, liabilities, income, and expenses of discontinued operations. The amendments in the authoritative guidance were effective in the first quarter of 2015. The adoption of this guidance did not have a material impact on the Company's Financial Statements.

Revenue from Contracts with Customers. In May 2014, the FASB issued authoritative guidance that provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance.  The new guidance requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued a decision to delay the effective date by one year.  The new guidance is effective for annual and interim periods beginning after December 15, 2017. Public entities are not permitted to adopt the standard earlier than the original effective date (that is, no earlier than 2017 for calendar year-end entities). The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The Company is in the process of evaluating the impact of adoption of this guidance on its Financial Statements. 

Customer's Accounting for Fees Paid in a Cloud Computing Arrangement.  In April 2015, the FASB issued authoritative guidance designed to assist customers in their determination of whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance will not change GAAP for a customer’s accounting for service contracts. This guidance is effective for annual and interim periods beginning after December 15, 2015. The Company does not expect the adoption of this guidance to have a material impact to its Financial Statements. 

Business Combinations. In September 2015, the FASB issued authoritative guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments following a business combination. The new guidance requires that an acquirer record in the same period’s financial statements the effects of the cumulative impact of adjustments including the impact on prior periods. The prior period impact of the adjustments should be presented separately on the face of the income statement or disclosed in the notes. The new guidance is effective for annual and interim periods beginning after December 15, 2015 for public business entities. The amendments should be applied prospectively to adjustments to provisional amounts that occur after the effective date with earlier application permitted for financial statements that have not been issued. The Company does not expect the adoption of this guidance to have a material impact on its Financial Statements.

Balance Sheet Classification of Deferred Taxes. In November 2015, the FASB issued authoritative guidance which changes how deferred taxes are classified on a company's balance sheet. The new guidance eliminates the current requirement for companies to present deferred tax liabilities and assets as current and noncurrent in a classified balance sheet. Instead, companies will be required to classify all deferred tax assets and liabilities as noncurrent. The new guidance is effective for annual reporting periods beginning after December 15, 2016. Early adoption is permitted for all entities as of the beginning of an interim or annual reporting period. The guidance may be applied either prospectively, for all deferred tax assets and liabilities, or retrospectively (i.e., by reclassifying the comparative balance sheet). If applied prospectively, entities are required to include a statement that prior periods were not retrospectively adjusted. If applied retrospectively, entities are also required to include quantitative information about the effects of the change on prior periods. The Company is in the process of evaluating the impact of adoption of this guidance on its Financial Statements.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Advertising Costs

Advertising costs for the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Advertising Costs	$	44,015	$	42,335	$	38,845

Depreciation Expense Computed Using Straight-Line Method over Useful Lives

Depreciation expense is computed using the straight-line method over the following useful lives:

Computer hardware	2 to 3 years
Computer software	2 to 5 years
Furniture and equipment	5 years
Leasehold improvements	Term of lease, 5 years maximum

Property and equipment consisted of the following (in thousands):

	December 31,
	2015			2014
Computer hardware	$	162,346		$	159,309
Computer software	339,634			312,968
Furniture and equipment	96,536			105,262
Leasehold improvements	118,491			113,782
Other	9,560			9,045
Property and equipment, cost	726,567			700,366
Accumulated depreciation	(583,661		)	(578,612		)
Property and equipment, net	$	142,906		$	121,754

Internal-Use Software Development Costs Capitalized

Internal-use software development costs capitalized for the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Internal-use software development costs	$	31,964	$	24,367	$	13,027

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Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2015

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Current Assets

Other current assets consisted of the following (in thousands):

	December 31,
	2015		2014
Deposits in trusts for employee deferred compensation plans	$	198,256	$	172,237
Other	70,524		73,100
	$	268,780	$	245,337

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Goodwill (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Activity in Goodwill

The following table sets forth the activity in goodwill from December 31, 2013, through December 31, 2015 (in thousands):

	Goodwill
	Temporary and consultant staffing			Permanent placement staffing			Risk consulting and internal audit services			Total
Balance as of December 31, 2013	$	134,692		$	26,574		$	39,567		$	200,833
Acquisitions	—			—			—			—
Foreign currency translation adjustments	(728		)	(124		)	(493		)	(1,345		)
Balance as of December 31, 2014	$	133,964		$	26,450		$	39,074		$	199,488
Acquisitions	—			—			10,988			10,988
Foreign currency translation adjustments	(791		)	(199		)	(907		)	(1,897		)
Balance as of December 31, 2015	$	133,173		$	26,251		$	49,155		$	208,579

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Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Components of Property and Equipment

Depreciation expense is computed using the straight-line method over the following useful lives:

Computer hardware	2 to 3 years
Computer software	2 to 5 years
Furniture and equipment	5 years
Leasehold improvements	Term of lease, 5 years maximum

Property and equipment consisted of the following (in thousands):

	December 31,
	2015			2014
Computer hardware	$	162,346		$	159,309
Computer software	339,634			312,968
Furniture and equipment	96,536			105,262
Leasehold improvements	118,491			113,782
Other	9,560			9,045
Property and equipment, cost	726,567			700,366
Accumulated depreciation	(583,661		)	(578,612		)
Property and equipment, net	$	142,906		$	121,754

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Accrued Payroll and Benefit Costs (Tables)

12 Months Ended

Dec. 31, 2015

Payables and Accruals [Abstract]

Accrued Payroll and Benefit Costs

Accrued payroll and benefit costs consisted of the following (in thousands):

	December 31,
	2015		2014
Payroll and benefits	$	240,793	$	213,962
Employee deferred compensation plans	212,220		181,709
Workers’ compensation	25,834		26,127
Payroll taxes	25,935		26,317
Accrued payroll and benefit costs	$	504,782	$	448,115

Employee Deferred Compensation Plans

Included in employee deferred compensation plans is the following (in thousands):

	December 31,
	2015		2014
Deferred compensation plan and other benefits related to the Company’s Chief Executive Officer	$	81,874	$	79,060

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Notes Payable and Other Indebtedness (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Maturities for Notes Payable and Other Indebtedness

The following table shows the schedule of maturities for notes payable and other indebtedness at December 31, 2015 (in thousands):

2016	$	153
2017	167
2018	183
2019	200
2020	218
Thereafter	239
	$	1,160

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Provision (Benefit) for Income Taxes

The provision (benefit) for income taxes for the years ended December 31, 2015, 2014 and 2013, consisted of the following (in thousands):

	Years Ended December 31,
	2015			2014			2013
Current:
Federal	$	181,640		$	146,633		$	114,687
State	36,281			33,054			27,358
Foreign	13,892			15,377			16,598
Deferred:
Federal and state	(8,398		)	(4,626		)	(7,759		)
Foreign	(181		)	983			(5,500		)
	$	223,234		$	191,421		$	145,384

Income Before Provision for Income Taxes

Income before the provision for income taxes for the years ended December 31, 2015, 2014 and 2013, consisted of the following (in thousands):

	Years Ended December 31,
	2015		2014		2013
Domestic	$	520,263	$	449,834	$	357,382
Foreign	60,767		47,515		40,197
	$	581,030	$	497,349	$	397,579

Difference of Income Taxes from Statutory Federal Income Tax Rates

The income taxes shown above varied from the statutory federal income tax rates for these periods as follows:

	Years Ended December 31,
	2015		2014		2013
Federal U.S. income tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	4.2		4.2		4.3
Non-deductible expenses	0.5		0.6		0.7
Non-U.S. income taxed at different rates, net of foreign tax credits	0.1		(0.2	)	(1.0	)
Federal tax credits	(0.6	)	(0.6	)	(1.3	)
Tax impact of uncertain tax positions	(0.2	)	(0.1	)	0.1
Valuation allowance release, net	(0.5	)	(0.3	)	(1.0	)
Other, net	(0.1	)	(0.1	)	(0.2	)
Effective tax rate	38.4	%	38.5	%	36.6	%

Deferred Portion of Tax Provision (Benefit)

The deferred portion of the tax provision (benefit) consisted of the following (in thousands):

	Years Ended December 31,
	2015			2014			2013
Amortization of franchise rights	$	514		$	514		$	514
Amortization of other intangibles	1,590			1,241			621
Accrued expenses, deducted for tax when paid	(17,664		)	(14,221		)	(11,190		)
Capitalized costs for books, deducted for tax	5,315			8,809			3,019
Depreciation	(5,932		)	(4,147		)	(2,597		)
Federal impact of unrecognized tax benefits	1,058			44			(274		)
Foreign tax credit carryforwards	3,636			(186		)	(3,449		)
Other, net	2,904			4,303			97
	$	(8,579	)	$	(3,643	)	$	(13,259	)

Deferred Income Tax Amounts Included on Consolidated Statements of Financial Position

The deferred income tax amounts included on the Consolidated Statements of Financial Position are composed of the following (in thousands):

	December 31,
	2015			2014
Current deferred income tax assets, net	$	145,684		$	133,151
Long-term deferred income tax liabilities, net	(29,139		)	(26,807		)
	$	116,545		$	106,344

Components of Deferred Income Tax Amounts

The components of the deferred income tax amounts at December 31, 2015 and 2014, were as follows (in thousands):

	December 31,
	2015			2014
Deferred Income Tax Assets
Provision for bad debts	$	11,092		$	9,210
Deferred compensation and other benefit obligations	96,948			83,065
Workers’ compensation	8,206			9,138
Stock-based compensation	15,814			14,572
Credits and net operating loss carryforwards	35,499			39,309
Other	23,885			25,316
Total deferred income tax assets	191,444			180,610
Deferred Income Tax Liabilities
Amortization of intangible assets	(26,960		)	(25,060		)
Property and equipment basis differences	(11,890		)	(12,384		)
Other	(9,720		)	(7,261		)
Total deferred income tax liabilities	(48,570		)	(44,705		)
Valuation allowance	(26,329		)	(29,561		)
Total deferred income tax assets, net	$	116,545		$	106,344

Reconciliation of Total Amounts of Gross Unrecognized Tax Benefits

The following table reconciles the total amounts of gross unrecognized tax benefits from January 1, 2013 to December 31, 2015 (in thousands):

	December 31,
	2015			2014			2013
Balance at beginning of period	$	4,573		$	6,110		$	7,097
Gross increases—tax positions in prior years	—			1			559
Gross decreases—tax positions in prior years	(1,807		)	(333		)	(369		)
Gross increases—tax positions in current year	120			35			38
Settlements	(520		)	—			—
Lapse of statute of limitations	(1,552		)	(1,240		)	(1,215		)
Balance at end of period	$	814		$	4,573		$	6,110

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Minimum Rental Commitments Under Non-Cancelable Leases

The approximate minimum rental commitments for 2016 and thereafter under non-cancelable leases in effect at December 31, 2015 were as follows (in thousands):

2016	$	88,177
2017	74,939
2018	56,425
2019	42,763
2020	37,668
Thereafter	81,437
	$	381,409

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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Number and Cost of Common Stock Shares Repurchased

The number and the cost of common stock shares repurchased during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Common stock repurchased (in shares)	4,343		3,336		3,305
Common stock repurchased	$	228,166	$	161,587	$	117,864

Number and Cost of Employee Stock Plan Repurchases

The number and the cost of employee stock plan repurchases made during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Employee stock plan repurchased (in shares)	474		462		1,157
Employee stock plan repurchased	$	24,755	$	22,386	$	44,169

Cash Dividends Declared

The cash dividends declared during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table:

	Years Ended December 31,
	2015		2014		2013
Cash dividends declared per share	$	.80	$	.72	$	.64

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Stock Plans (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Expense

Stock-based compensation expense consisted of the following (in thousands):

	Years Ended December 31,
	2015		2014		2013
Restricted stock and stock units	$	41,292	$	40,821	$	38,867

Total Unrecognized Compensation Cost, Net of Estimated Forfeitures

Total unrecognized compensation cost, net of estimated forfeitures, consisted of the following (in thousands):

	December 31,
	2015		2014		2013
Restricted stock and stock units	$	60,627	$	54,968	$	53,646

Activity Under All Stock Plans and Weighted Average Exercise Prices

The following table reflects activity under all stock plans from December 31, 2012 through December 31, 2015, and the weighted average exercise prices (in thousands, except per share amounts):

	Restricted Stock Plans without Market-Condition				Restricted Stock Plans with Market-Condition				Stock Option Plans
	Number of Shares/ Units			Weighted Average Grant Date Fair Value	Number of Shares/ Units			Weighted Average Grant Date Fair Value	Number of Shares/ Units			Weighted Average Exercise Price Per Share
Outstanding, December 31, 2012		1,737		$28.25		758		$30.77		2,091		$24.80
Granted		688		$35.34		400		$42.04		—		—
Exercised		—		—		—		—		(1,397	)	$23.82
Restrictions lapsed		(1,087	)	$28.53		(259	)	$29.53		—		—
Forfeited		(21	)	$31.29		—		—		(62	)	$20.48
Outstanding, December 31, 2013		1,317		$31.68		899		$36.58		632		$27.41
Granted		585		$41.60		335		$50.09		—		—
Exercised		—		—		—		—		(528	)	$27.12
Restrictions lapsed		(712	)	$31.96		—		—		—		—
Forfeited		(25	)	$32.82		—		—		(27	)	$27.83
Outstanding, December 31, 2014		1,165		$36.47		1,234		$40.24		77		$29.22
Granted		502		$58.14		257		$71.86		—		—
Exercised		—		—		—		—		(54	)	$28.18
Restrictions lapsed		(599	)	$36.30		(499	)	$31.41		—		—
Forfeited		(16	)	$37.63		—		—		(11	)	$30.94
Outstanding, December 31, 2015		1,052		$46.88		992		$52.89		12		$32.36

Pre-Tax Intrinsic Value of Stock Option Exercised

The total pre-tax intrinsic value of stock options exercised and the total fair value of shares vested during the years ended December 31, 2015, 2014 and 2013, are reflected in the following table (in thousands):

	Years Ended December 31,
	2015		2014		2013
Total pre-tax intrinsic value of stock options exercised	$	1,709	$	9,150	$	17,092
Total fair value of shares vested	$	56,570	$	38,566	$	53,931

Information about Options Outstanding and Exercisable

The following table summarizes information about options outstanding and exercisable as of December 31, 2015 (in thousands, except number of years and per share amounts):

	Options Outstanding and Exercisable
Range of Exercise Prices	Number Outstanding and Exercisable as of December 31, 2015		Weighted Average Remaining Contractual Life	Weighted Average Exercise Price	Aggregate Intrinsic Value
$32.36 to $32.36		12	0.57	$32.36		$	179

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Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Calculation of Net Income Per Share

The calculation of net income per share for the three years ended December 31, 2015 is reflected in the following table (in thousands, except per share amounts):

	Years Ended December 31,
	2015		2014		2013
Basic net income per share:
Net income	$	357,796	$	305,928	$	252,195
Income allocated to participating securities	—		—		3
Net income available to common stockholders	$	357,796	$	305,928	$	252,192
Basic weighted average shares	131,749		134,358		136,153
Basic net income per share	$	2.72	$	2.28	$	1.85
Diluted net income per share:
Net income	$	357,796	$	305,928	$	252,195
Income allocated to participating securities	—		—		3
Net income available to common stockholders	$	357,796	$	305,928	$	252,192
Basic weighted average shares	131,749		134,358		136,153
Dilutive effect of potential common shares	1,181		1,183		1,436
Diluted weighted average shares	132,930		135,541		137,589
Diluted net income per share	$	2.69	$	2.26	$	1.83

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Business Segments (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Reconciliation of Revenue and Operating Income by Reportable Segment to Consolidated Results

The following table provides a reconciliation of revenue and operating income by reportable segment to consolidated results (in thousands):

	Years Ended December 31,
	2015			2014			2013
Net service revenues
Temporary and consultant staffing	$	3,930,843		$	3,676,281		$	3,369,840
Permanent placement staffing	421,411			394,515			347,715
Risk consulting and internal audit services	742,679			624,218			528,340
	$	5,094,933		$	4,695,014		$	4,245,895
Operating income
Temporary and consultant staffing	$	399,808		$	358,533		$	301,185
Permanent placement staffing	85,019			78,333			54,390
Risk consulting and internal audit services	95,845			60,316			42,702
	580,672			497,182			398,277
Amortization of intangible assets	192			557			1,700
Interest income, net	(550		)	(724		)	(1,002		)
Income before income taxes	$	581,030		$	497,349		$	397,579

Identifiable Assets by Business Segment

The following tables represent identifiable assets by business segment (in thousands):

	December 31,
	2015		2014		2013
Accounts receivable
Temporary and consultant staffing	$	425,179	$	403,615	$	349,364
Permanent placement staffing	121,670		115,563		100,550
Risk consulting and internal audit services	192,878		169,042		129,252
	$	739,727	$	688,220	$	579,166
	December 31,
	2015		2014		2013
Goodwill
Temporary and consultant staffing	$	133,173	$	133,964	$	134,692
Permanent placement staffing	26,251		26,450		26,574
Risk consulting and internal audit services	49,155		39,074		39,567
	$	208,579	$	199,488	$	200,833

Revenue and Long-Lived Assets by Geographic Location

The following tables represent revenues and long-lived assets by geographic location (in thousands):

	Years Ended December 31,
	2015		2014		2013
Net service revenues (a)
Domestic	$	4,105,013	$	3,623,812	$	3,219,820
Foreign (b)	989,920		1,071,202		1,026,075
	$	5,094,933	$	4,695,014	$	4,245,895
	December 31,
	2015		2014		2013
Assets, long-lived
Domestic	$	117,176	$	101,181	$	92,252
Foreign	25,730		20,573		20,392
	$	142,906	$	121,754	$	112,644

(a) There were no customers that accounted for more than 10% of the Company's total net revenue in any year presented.

(b) No individual country represented more than 10% of revenues in any year presented.

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Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

The following tabulation shows certain quarterly financial data for 2015 and 2014 (in thousands, except per share amounts):

	Quarter
2015	1		2		3		4
Net service revenues	$	1,205,563	$	1,272,058	$	1,312,718	$	1,304,594
Gross margin	$	494,087	$	530,502	$	549,801	$	540,081
Income before income taxes	$	128,174	$	149,235	$	159,306	$	144,315
Net income	$	77,922	$	89,706	$	96,725	$	93,443
Basic net income per share	$	.59	$	.68	$	.74	$	.71
Diluted net income per share	$	.58	$	.67	$	.73	$	.71

	Quarter
2014	1		2		3		4
Net service revenues	$	1,084,342	$	1,164,914	$	1,224,308	$	1,221,450
Gross margin	$	438,495	$	478,444	$	505,220	$	500,757
Income before income taxes	$	102,014	$	123,653	$	138,361	$	133,321
Net income	$	61,551	$	75,140	$	85,184	$	84,053
Basic net income per share	$	.45	$	.56	$	.64	$	.63
Diluted net income per share	$	.45	$	.55	$	.63	$	.62

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Subsequent Events (Tables)

12 Months Ended

Dec. 31, 2015

Subsequent Events [Abstract]

Subsequent Events

On February 11, 2016 the Company announced the following:

Quarterly dividend per share	$.22
Declaration date	February 11, 2016
Record date	February 25, 2016
Payment date	March 15, 2016

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Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015 USD ($) Segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Accounting Policies [Abstract]
Advertising Costs	$ 44,015,000	$ 42,335,000	$ 38,845,000
Goodwill [Line Items]
Number of reportable segments | Segment	3
Valuation allowance	$ 26,329,000	$ 29,561,000
Provision for workers' compensation claims threshold	$ 500,000.0
Minimum
Goodwill [Line Items]
Amortized life assigned to identifiable intangible assets (in years)	2 years
Maximum
Goodwill [Line Items]
Amortized life assigned to identifiable intangible assets (in years)	5 years

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Summary of Significant Accounting Policies - Property Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2015
Computer Hardware | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	2 years
Computer Hardware | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Computer Software | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	2 years
Computer Software | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Leasehold Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years

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Summary of Significant Accounting Policies - Internal Use Software (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounting Policies [Abstract]
Internal-use software development costs	$ 31,964	$ 24,367	$ 13,027

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Other Current Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deposits in trusts for employee deferred compensation plans	$ 198,256	$ 172,237
Other	70,524	73,100
Other current assets	$ 268,780	$ 245,337

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Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Beginning balance	$ 199,488	$ 200,833
Acquisitions	10,988	0
Foreign currency translation adjustments	(1,897)	(1,345)
Ending balance	208,579	199,488
Temporary and consultant staffing
Goodwill [Roll Forward]
Beginning balance	133,964	134,692
Acquisitions	0	0
Foreign currency translation adjustments	(791)	(728)
Ending balance	133,173	133,964
Permanent placement staffing
Goodwill [Roll Forward]
Beginning balance	26,450	26,574
Acquisitions	0	0
Foreign currency translation adjustments	(199)	(124)
Ending balance	26,251	26,450
Risk consulting and internal audit services
Goodwill [Roll Forward]
Beginning balance	39,074	39,567
Acquisitions	10,988	0
Foreign currency translation adjustments	(907)	(493)
Ending balance	$ 49,155	$ 39,074

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Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Abstract]
Computer hardware	$ 162,346	$ 159,309
Computer software	339,634	312,968
Furniture and equipment	96,536	105,262
Leasehold improvements	118,491	113,782
Other	9,560	9,045
Property and equipment, cost	726,567	700,366
Accumulated depreciation	(583,661)	(578,612)
Property and equipment, net	$ 142,906	$ 121,754	$ 112,644

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Accrued Payroll and Benefit Costs (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Payroll and benefits	$ 240,793	$ 213,962
Employee deferred compensation plans	212,220	181,709
Workers’ compensation	25,834	26,127
Payroll taxes	25,935	26,317
Accrued payroll and benefit costs	504,782	448,115
Chief Executive Officer
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Deferred compensation plan and other benefits related to the Company’s Chief Executive Officer	$ 81,874	$ 79,060

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Notes Payable and Other Indebtedness - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Promissory notes and other forms of indebtedness, issued	$ 1,200,000	$ 1,300,000
Weighted average interest rate	9.00%	9.00%	9.00%
Uncommitted letter of credit facility	$ 35,000,000
Debt support standby letters of credit	$ 13,500,000	$ 16,600,000
Service fee percentage	1.125%
Line of credit facility, expiry date	Aug. 31, 2016
Standby letters of credit used for collateral requirements
Debt Instrument [Line Items]
Letters of credit outstanding	$ 12,300,000	$ 15,300,000
Standby letter of credit
Debt Instrument [Line Items]
Promissory notes and other forms of indebtedness collateralized	$ 1,200,000

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Notes Payable and Other Indebtedness - Schedule of Maturities for Notes Payable and Other Indebtedness (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Debt Disclosure [Abstract]
2016	$ 153
2017	167
2018	183
2019	200
2020	218
Thereafter	239
Notes payable and other indebtedness	$ 1,160

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Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Valuation allowance	$ 26,329,000	$ 29,561,000
Deferred income taxes, undistributed foreign earnings	5,700,000	3,700,000
Impact of repatriation, net of foreign tax credits	0	0
Unrecognized tax benefits, impact on effective tax rate	500,000	900,000	$ 1,300,000
Accrued interest and penalties	200,000	2,500,000	2,800,000
Increase (decrease) in income tax expense	(2,300,000)	$ (300,000)	$ (300,000)
Unrecognized tax benefits, gross	300,000
Foreign Countries
Income Taxes [Line Items]
Net operating loss carryforwards, foreign	$ 27,900,000
Net operating loss carry forwards expiring in and beyond the stated year	expire in 2016 and later
California enterprise zone
Income Taxes [Line Items]
California enterprise zone tax credits	$ 4,300,000
Tax credit carry forwards expiring in and beyond the stated year	expire in 2023
Foreign Countries
Income Taxes [Line Items]
Valuation allowance	$ 24,500,000
California Enterprise Zone | California enterprise zone
Income Taxes [Line Items]
Valuation allowance	$ 1,800,000

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Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 181,640	$ 146,633	$ 114,687
State	36,281	33,054	27,358
Foreign	13,892	15,377	16,598
Deferred:
Federal and state	(8,398)	(4,626)	(7,759)
Foreign	(181)	983	(5,500)
Provision (benefit) for income taxes	$ 223,234	$ 191,421	$ 145,384

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Income Taxes - Income Before Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Domestic									$ 520,263	$ 449,834	$ 357,382
Foreign									60,767	47,515	40,197
Income before income taxes	$ 144,315	$ 159,306	$ 149,235	$ 128,174	$ 133,321	$ 138,361	$ 123,653	$ 102,014	$ 581,030	$ 497,349	$ 397,579

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Income Taxes - Difference of Income Taxes from Statutory Federal Income Tax Rates (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Federal U.S. income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	4.20%	4.20%	4.30%
Non-deductible expenses	0.50%	0.60%	0.70%
Non-U.S. income taxed at different rates, net of foreign tax credits	0.10%	(0.20%)	(1.00%)
Federal tax credits	(0.60%)	(0.60%)	(1.30%)
Tax impact of uncertain tax positions	(0.20%)	(0.10%)	0.10%
Valuation allowance release, net	(0.50%)	(0.30%)	(1.00%)
Other, net	(0.10%)	(0.10%)	(0.20%)
Effective tax rate	38.40%	38.50%	36.60%

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Income Taxes - Deferred Portion of Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Amortization of franchise rights	$ 514	$ 514	$ 514
Amortization of other intangibles	1,590	1,241	621
Accrued expenses, deducted for tax when paid	(17,664)	(14,221)	(11,190)
Capitalized costs for books, deducted for tax	5,315	8,809	3,019
Depreciation	(5,932)	(4,147)	(2,597)
Federal impact of unrecognized tax benefits	1,058	44	(274)
Foreign tax credit carryforwards	3,636	(186)	(3,449)
Other, net	2,904	4,303	97
Deferred Portion Of Tax Expense Benefit, Total	$ (8,579)	$ (3,643)	$ (13,259)

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Income Taxes - Deferred Income Tax Amounts Included on Consolidated Statements of Financial Position (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current deferred income tax assets, net	$ 145,684	$ 133,151
Long-term deferred income tax liabilities, net	(29,139)	(26,807)
Total deferred income tax assets, net	$ 116,545	$ 106,344

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Income Taxes - Components of Deferred Income Tax Amounts (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Income Tax Assets
Provision for bad debts	$ 11,092	$ 9,210
Deferred compensation and other benefit obligations	96,948	83,065
Workers’ compensation	8,206	9,138
Stock-based compensation	15,814	14,572
Credits and net operating loss carryforwards	35,499	39,309
Other	23,885	25,316
Total deferred income tax assets	191,444	180,610
Deferred Income Tax Liabilities
Amortization of intangible assets	(26,960)	(25,060)
Property and equipment basis differences	(11,890)	(12,384)
Other	(9,720)	(7,261)
Total deferred income tax liabilities	(48,570)	(44,705)
Valuation allowance	(26,329)	(29,561)
Total deferred income tax assets, net	$ 116,545	$ 106,344

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Income Taxes - Reconciliation of Total Amounts of Gross Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 4,573	$ 6,110	$ 7,097
Gross increases-tax positions in prior years	0	1	559
Gross decreases-tax positions in prior years	(1,807)	(333)	(369)
Gross increases-tax positions in current year	120	35	38
Settlements	(520)	0	0
Lapse of statute of limitations	(1,552)	(1,240)	(1,215)
Balance at end of period	$ 814	$ 4,573	$ 6,110

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Commitments and Contingencies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Apr. 23, 2010 subsidiary
Loss Contingencies [Line Items]
Rental expense	$ 85,900,000	$ 89,900,000	$ 92,700,000
Staffing Managers Case
Loss Contingencies [Line Items]
Number of subsidiaries | subsidiary				1
Allegations loss	0
Rodriguez Case
Loss Contingencies [Line Items]
Allegations loss	0
Gentry Case
Loss Contingencies [Line Items]
Allegations loss	$ 0

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Commitments and Contingencies - Minimum Rental Commitments Under Non-Cancelable Leases (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2016	$ 88,177
2017	74,939
2018	56,425
2019	42,763
2020	37,668
Thereafter	81,437
Operating Leases, Future Minimum Payments Due, Total	$ 381,409

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Stockholders' Equity - Additional Information (Detail)	Dec. 31, 2015 shares
Equity [Abstract]
Maximum number of shares authorized to be repurchased	10,400,000.0

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Stockholders' Equity - Number of Cost of Common Stock Shares Repurchased (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Common stock repurchased (in shares)	4,343	3,336	3,305
Common stock repurchased	$ 228,166	$ 161,587	$ 117,864

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Stockholders' Equity - Number and Cost of Employee Stock Plan Repurchases (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Employee stock plan repurchased (in shares)	474	462	1,157
Employee stock plan repurchased	$ 24,755	$ 22,386	$ 44,169

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Stockholders' Equity - Cash Dividends Declared (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Cash dividends declared per share (in USD per share)	$ 0.80	$ 0.72	$ 0.64

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Stock Plans - Additional Information (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for grants (in years)	3 years
Term of options outstanding (in years)	10 years
Fair value of award assumptions, historical volatility rate	23.70%
Fair value of award assumptions, dividend yield	0.00%
Fair value of award assumptions, risk-free interest rate	0.84%
Fair value award assumptions, volatility calculation period	2 years 9 months 5 days
Unrecognized compensation cost expected to be recognized over the period (years)	4 years
Outstanding closing stock price per share	$ 47.14
Total number of available shares to grant	5,800
Options outstanding (in shares)	12	77	632	2,091
Exercisable weighted average exercise price	$ 32.36
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Actual shares earned, possible percentage on target award	50.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Actual shares earned, possible percentage on target award	150.00%
Restricted stock and stock units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for grants (in years)	3 years
Restricted stock and stock units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period for grants (in years)	4 years

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Stock Plans - Stock-Based Compensation Expense (Details) - Restricted stock and stock units - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 41,292	$ 40,821	$ 38,867
Total unrecognized compensation cost, net of estimated forfeitures	$ 60,627	$ 54,968	$ 53,646

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Stock Plans - Activity Under All Stock Plans and Weighted Average Exercise Prices (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Options, Number of Shares/Units:
Outstanding Beginning Balance (in shares)	77	632	2,091
Granted (in shares)	0	0	0
Exercised (in shares)	(54)	(528)	(1,397)
Restrictions lapsed (in shares)	0	0	0
Forfeited (in shares)	(11)	(27)	(62)
Outstanding, Ending Balance (in shares)	12	77	632
Weighted Average Exercise Price Per Share:
Outstanding Beginning Balance (in USD per share)	$ 29.22	$ 27.41	$ 24.80
Granted (in USD per share)	0.00	0.00	0.00
Exercised (in USD per share)	28.18	27.12	23.82
Restrictions lapsed (in USD per share)	0.00	0.00	0.00
Forfeited (in USD per share)	30.94	27.83	20.48
Outstanding Ending Balance (in USD per share)	$ 32.36	$ 29.22	$ 27.41
Restricted stock and stock units | Without Market Conditions
Number of Shares/Units:
Number of Shares/Units, Outstanding Beginning Balance (in shares)	1,165	1,317	1,737
Granted (in shares)	502	585	688
Exercised (in shares)	0	0	0
Restrictions lapsed (in shares)	(599)	(712)	(1,087)
Forfeited (in shares)	(16)	(25)	(21)
Outstanding, Ending Balance (in shares)	1,052	1,165	1,317
Weighted Average Grant Date Fair Value:
Outstanding Beginning Balance (in USD per share)	$ 36.47	$ 31.68	$ 28.25
Granted (in USD per share)	58.14	41.60	35.34
Exercised (in USD per share)	0.00	0.00	0.00
Restrictions lapsed (in USD per share)	36.30	31.96	28.53
Forfeited (in USD per share)	37.63	32.82	31.29
Outstanding Ending Balance (in USD per share)	$ 46.88	$ 36.47	$ 31.68
Restricted stock and stock units | With Market Conditions
Number of Shares/Units:
Number of Shares/Units, Outstanding Beginning Balance (in shares)	1,234	899	758
Granted (in shares)	257	335	400
Exercised (in shares)	0	0	0
Restrictions lapsed (in shares)	(499)	0	(259)
Forfeited (in shares)	0	0	0
Outstanding, Ending Balance (in shares)	992	1,234	899
Weighted Average Grant Date Fair Value:
Outstanding Beginning Balance (in USD per share)	$ 40.24	$ 36.58	$ 30.77
Granted (in USD per share)	71.86	50.09	42.04
Exercised (in USD per share)	0.00	0.00	0.00
Restrictions lapsed (in USD per share)	31.41	0.00	29.53
Forfeited (in USD per share)	0.00	0.00	0.00
Outstanding Ending Balance (in USD per share)	$ 52.89	$ 40.24	$ 36.58

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Stock Plans - Total Pre-Tax Intrinsic Value of Stock Options Exercised and Total Fair Value of Shares Vested (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total pre-tax intrinsic value of stock options exercised	$ 1,709	$ 9,150	$ 17,092
Total fair value of shares vested	$ 56,570	$ 38,566	$ 53,931

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Stock Plans - Information of Option Outstanding and Exercisable (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number Outstanding and Exercisable (in shares)	12	77	632	2,091
Weighted Average Exercise Price (in USD per share)	$ 32.36	$ 29.22	$ 27.41	$ 24.80
$32.36 to $32.36
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of Exercise Prices, Lower (in USD per share)	32.36
Range of Exercise Prices, Upper (in USD per share)	$ 32.36
Number Outstanding and Exercisable (in shares)	12
Weighted Average Remaining Contractual Life	6 months 24 days
Weighted Average Exercise Price (in USD per share)	$ 32.36
Aggregate Intrinsic Value	$ 179

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Net Income Per Share - Calculation of Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Basic net income per share:
Net income	$ 93,443	$ 96,725	$ 89,706	$ 77,922	$ 84,053	$ 85,184	$ 75,140	$ 61,551	$ 357,796	$ 305,928	$ 252,195
Income allocated to participating securities-basic									0	0	3
Net income available to common stockholders-basic									$ 357,796	$ 305,928	$ 252,192
Basic weighted average shares (in shares)									131,749	134,358	136,153
Basic net income per share (in USD per share)	$ 0.71	$ 0.74	$ 0.68	$ 0.59	$ 0.63	$ 0.64	$ 0.56	$ 0.45	$ 2.72	$ 2.28	$ 1.85
Earnings Per Share, Diluted [Abstract]
Income allocated to participating securities-diluted									$ 0	$ 0	$ 3
Net income available to common stockholders—diluted									$ 357,796	$ 305,928	$ 252,192
Basic weighted average shares (in shares)									131,749	134,358	136,153
Dilutive effect of potential common shares (in shares)									1,181	1,183	1,436
Diluted weighted average shares (in shares)									132,930	135,541	137,589
Diluted net income per share (in USD per share)	$ 0.71	$ 0.73	$ 0.67	$ 0.58	$ 0.62	$ 0.63	$ 0.55	$ 0.45	$ 2.69	$ 2.26	$ 1.83

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Business Segments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015 Segment
Segment Reporting [Abstract]
Number of reportable segments	3

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Business Segments - Reconciliation of Revenue and Operating Income by Reportable Segment to Consolidated Results (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net service revenues	$ 1,304,594	$ 1,312,718	$ 1,272,058	$ 1,205,563	$ 1,221,450	$ 1,224,308	$ 1,164,914	$ 1,084,342	$ 5,094,933	$ 4,695,014	$ 4,245,895
Amortization of intangible assets									192	557	1,700
Interest income, net									(550)	(724)	(1,002)
Income before income taxes	$ 144,315	$ 159,306	$ 149,235	$ 128,174	$ 133,321	$ 138,361	$ 123,653	$ 102,014	581,030	497,349	397,579
Operating segments
Segment Reporting Information [Line Items]
Net service revenues									5,094,933	4,695,014	4,245,895
Operating income									580,672	497,182	398,277
Operating segments | Temporary and consultant staffing
Segment Reporting Information [Line Items]
Net service revenues									3,930,843	3,676,281	3,369,840
Operating income									399,808	358,533	301,185
Operating segments | Permanent placement staffing
Segment Reporting Information [Line Items]
Net service revenues									421,411	394,515	347,715
Operating income									85,019	78,333	54,390
Operating segments | Risk consulting and internal audit services
Segment Reporting Information [Line Items]
Net service revenues									742,679	624,218	528,340
Operating income									95,845	60,316	42,702
Segment reconciling items
Segment Reporting Information [Line Items]
Amortization of intangible assets									192	557	1,700
Interest income, net									$ (550)	$ (724)	$ (1,002)

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Business Segments - Identifiable Assets by Business Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Goodwill	$ 208,579	$ 199,488	$ 200,833
Temporary and consultant staffing
Segment Reporting Information [Line Items]
Goodwill	133,173	133,964	134,692
Permanent placement staffing
Segment Reporting Information [Line Items]
Goodwill	26,251	26,450	26,574
Risk consulting and internal audit services
Segment Reporting Information [Line Items]
Goodwill	49,155	39,074	39,567
Operating segments
Segment Reporting Information [Line Items]
Accounts receivable	739,727	688,220	579,166
Goodwill	208,579	199,488	200,833
Operating segments | Temporary and consultant staffing
Segment Reporting Information [Line Items]
Accounts receivable	425,179	403,615	349,364
Goodwill	133,173	133,964	134,692
Operating segments | Permanent placement staffing
Segment Reporting Information [Line Items]
Accounts receivable	121,670	115,563	100,550
Goodwill	26,251	26,450	26,574
Operating segments | Risk consulting and internal audit services
Segment Reporting Information [Line Items]
Accounts receivable	192,878	169,042	129,252
Goodwill	$ 49,155	$ 39,074	$ 39,567

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Business Segments - Revenue and Long-Lived Assets by Geographic Location (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net service revenues	$ 1,304,594	$ 1,312,718	$ 1,272,058	$ 1,205,563	$ 1,221,450	$ 1,224,308	$ 1,164,914	$ 1,084,342	$ 5,094,933	$ 4,695,014	$ 4,245,895
Assets, long-lived	142,906				121,754				142,906	121,754	112,644
Domestic
Revenues from External Customers and Long-Lived Assets [Line Items]
Net service revenues									4,105,013	3,623,812	3,219,820
Assets, long-lived	117,176				101,181				117,176	101,181	92,252
Foreign
Revenues from External Customers and Long-Lived Assets [Line Items]
Net service revenues									989,920	1,071,202	1,026,075
Assets, long-lived	$ 25,730				$ 20,573				$ 25,730	$ 20,573	$ 20,392

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Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Net service revenues	$ 1,304,594	$ 1,312,718	$ 1,272,058	$ 1,205,563	$ 1,221,450	$ 1,224,308	$ 1,164,914	$ 1,084,342	$ 5,094,933	$ 4,695,014	$ 4,245,895
Gross margin	540,081	549,801	530,502	494,087	500,757	505,220	478,444	438,495	2,114,471	1,922,916	1,723,092
Income before income taxes	144,315	159,306	149,235	128,174	133,321	138,361	123,653	102,014	581,030	497,349	397,579
Net income	$ 93,443	$ 96,725	$ 89,706	$ 77,922	$ 84,053	$ 85,184	$ 75,140	$ 61,551	$ 357,796	$ 305,928	$ 252,195
Basic net income per share (in USD per share)	$ 0.71	$ 0.74	$ 0.68	$ 0.59	$ 0.63	$ 0.64	$ 0.56	$ 0.45	$ 2.72	$ 2.28	$ 1.85
Diluted net income per share (in USD per share)	$ 0.71	$ 0.73	$ 0.67	$ 0.58	$ 0.62	$ 0.63	$ 0.55	$ 0.45	$ 2.69	$ 2.26	$ 1.83

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Subsequent Events (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Feb. 11, 2016
Subsequent Event [Line Items]
Declaration date	Feb. 11, 2016
Record date	Feb. 25, 2016
Payment date	Mar. 15, 2016
Subsequent Event
Subsequent Event [Line Items]
Quarterly dividend per share		$ 0.22

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Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for doubtful accounts receivable
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 30,544	$ 27,261	$ 24,852
Charged to Expenses	12,005	9,825	7,467
Deductions	(5,353)	(3,670)	(4,313)
Translation Adjustments	(2,109)	(2,872)	(745)
Balance at End of Period	35,087	30,544	27,261
Deferred tax valuation allowance
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	29,561	37,044	39,310
Charged to Expenses	6,283	1,742	7,053
Deductions	(8,068)	(6,056)	(8,135)
Translation Adjustments	(1,447)	(3,169)	(1,184)
Balance at End of Period	$ 26,329	$ 29,561	$ 37,044