New Accounting Pronouncements (Policies)	9 Months Ended
Sep. 30, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In August 2018, the Financial Accounting Standards Board (“FASB”) issued ASU 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The ASU is effective for annual reporting periods beginning after December 15, 2019, including interim reporting periods within those annual periods, with early adoption permitted. Entities have the option to apply the guidance prospectively to all implementation costs incurred after the date of adoption or retrospectively. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. In August 2018, the FASB issued ASU 2018-13 which eliminates, adds and modifies certain fair value measurement disclosures. The ASU is effective for annual reporting periods beginning after December 15, 2019, including interim reporting periods within those annual periods, with early adoption permitted. We do not expect the adoption of this standard to have a material impact to our consolidated financial statements. In June 2018, the FASB issued ASU 2018-07 simplifying the accounting for nonemployee share-based payment awards by expanding the scope of ASC Topic 718, Compensation - Stock Compensation, to include share-based payment transactions for acquiring goods and services from nonemployees. Under the new standard, most of the guidance on stock compensation payments to nonemployees would be aligned with the requirements for share-based payments granted to employees. The ASU is effective for annual reporting periods beginning after December 15, 2018, including interim reporting periods within those annual reporting periods, with early adoption permitted. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. In February 2018, the FASB issued ASU 2018-02 allowing reclassification from accumulated other comprehensive income (loss) to retained earnings for the income tax effects resulting from the Act enacted by the U.S. federal government in December 2017. The new guidance eliminates the stranded tax effects resulting from the Act and will improve the usefulness of information reported to financial statement users. It also requires certain disclosures about stranded tax effects. ASU 2018-02 relates only to the reclassification of the income tax effects of the Act and does not change the underlying guidance requiring that the effect of a change in tax laws or rates be included in income from continuing operations. The ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. It should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Act is recognized. Early adoption is permitted. We adopted this guidance during the second quarter of 2018. We elected not to reclassify the income tax effects of the Act from accumulated other comprehensive income (loss) to retained earnings. In May 2017, the FASB issued ASU 2017-09 clarifying when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The new guidance will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as modifications. It does not change the accounting for modifications. The ASU was effective prospectively for reporting periods beginning after December 15, 2017, with early adoption permitted, including adoption in any interim period for which financial statements have not yet been issued. The adoption of this ASU did not have an impact on our consolidated financial statements. In January 2017, the FASB issued ASU 2017-04 simplifying the accounting for goodwill impairment for all entities. The new guidance eliminates the requirement to calculate the implied fair value of goodwill (Step 2 of the current two-step goodwill impairment test under ASC 350). Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (Step 1 of the current two-step goodwill impairment test). The ASU is effective prospectively for reporting periods beginning after December 15, 2019, with early adoption permitted for annual and interim goodwill impairment testing dates after January 1, 2017. We are currently evaluating the impact of the new guidance on our goodwill impairment testing process and consolidated financial statements. In November 2016, the FASB issued ASU 2016-18 amending the presentation of restricted cash within the statement of cash flows. The new guidance requires that restricted cash be included within cash and cash equivalents on the statement of cash flows. The ASU was effective retrospectively for reporting periods beginning after December 15, 2017, with early adoption permitted. We adopted this guidance effective January 1, 2018. In August 2016, the FASB issued ASU 2016-15 clarifying how entities should classify certain cash receipts and payments on the statement of cash flows. The new guidance addresses classification of cash flows related to the following transactions: 1) debt prepayment or debt extinguishment costs; 2) settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; 3) contingent consideration payments made after a business combination; 4) proceeds from the settlement of insurance claims; 5) proceeds from the settlement of corporate-owned life insurance policies; 6) distributions received from equity method investees; and 7) beneficial interests in securitization transactions. ASU 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. This ASU was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017 and required retrospective application. Early adoption was permitted. We adopted this guidance effective January 1, 2018 and the impact related to this implementation was immaterial. In June 2016, the FASB issued ASU 2016-13 amending how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The guidance requires the application of a current expected credit loss model, which is a new impairment model based on expected losses. Under this model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019 with early adoption permitted for annual reporting periods beginning after December 15, 2018. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. This ASU applies to trade accounts receivable and may have an impact on our calculation of the allowance for uncollectible accounts receivable. In February 2016, the FASB issued ASU 2016-02 amending the existing accounting standards for lease accounting and requiring lessees to recognize lease assets and lease liabilities for all leases with lease terms of more than 12 months, including those classified as operating leases. Both the asset and liability will initially be measured at the present value of the future minimum lease payments, with the asset being subject to adjustments such as initial direct costs. Consistent with current U.S. GAAP, the presentation of expenses and cash flows will depend primarily on the classification of the lease as either a finance or an operating lease. The new standard also requires additional quantitative and qualitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases in order to provide additional information about the nature of an organization’s leasing activities. This ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018 and requires modified retrospective application. Early adoption is permitted. In July 2018, the FASB issued ASU 2018-11, which provided entities with an additional transition method to adopt the new lease standard at the adoption date, as compared to the beginning of the earliest period presented, and recognize a cumulative-effect adjustment to the beginning balance of retained earnings in the period of adoption. We expect to elect this transition method at the adoption date. A cross-functional implementation team is working to assess the impact of the standard. We continue to make progress with upgrading our lease accounting software and developing processes to determine key judgments, such as the discount rates to be used for required present value calculations. We believe that our adoption of this standard will likely have a material impact to our consolidated balance sheets for the recognition of certain operating leases as right-of-use assets and lease liabilities. Our operating lease obligations are described in the Commitments footnote of our 2017 Form 10-K. Based on our preliminary assessment, we do not expect this standard to have a material impact to our consolidated statements of earnings. In January 2016, the FASB issued ASU 2016-01 amending the current guidance for how entities measure certain equity investments, the accounting for financial liabilities under the fair value option, and the presentation and disclosure requirements relating to financial instruments. The new guidance requires entities to use fair value measurement for equity investments in unconsolidated entities, excluding equity method investments, and to recognize the changes in fair value in net income at the end of each reporting period. Under the new standard, for any financial liabilities in which the fair value option has been elected, the changes in fair value due to instrument-specific credit risk must be recognized separately in other comprehensive income. Presentation and disclosure requirements under the new guidance require public business entities to use the exit price when measuring the fair value of financial instruments measured at amortized cost. In addition, financial assets and liabilities must now be presented separately in the notes to the financial statements and grouped by measurement category and form of financial asset. This ASU was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption was only permitted for the financial liability provision. We adopted this guidance effective January 1, 2018. See Investment in Persol Holdings footnote for the impact on the financial statements. In May 2014, the FASB issued new revenue recognition guidance under ASU 2014-09 that superseded the existing revenue recognition guidance under U.S. GAAP. The new standard focused on creating a single source of revenue guidance for revenue arising from contracts with customers for all industries. The objective of the new standard was for companies to recognize revenue when it transfers the promised goods or services to its customers at an amount that represents what the company expects to be entitled to in exchange for those goods or services. In July 2015, the FASB deferred the effective date by one year (ASU 2015-14). This ASU was effective for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2017. Since the issuance of the original standard, the FASB issued several other subsequent updates including the following: 1) clarification of the implementation guidance on principal versus agent considerations (ASU 2016-08); 2) further guidance on identifying performance obligations in a contract as well as clarifications on the licensing implementation guidance (ASU 2016-10); 3) rescission of several SEC Staff Announcements that are codified in Topic 605 (ASU 2016-11); 4) additional guidance and practical expedients in response to identified implementation issues (ASU 2016-12); and 5) technical corrections and improvements (ASU 2016-20). We adopted this guidance with the modified retrospective approach effective January 1, 2018. See Revenue footnote for the impact on the financial statements. Management has evaluated other recently issued accounting pronouncements and does not believe that any of these pronouncements will have a significant impact on our consolidated financial statements and related disclosures.

New Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board (“FASB”) issued ASU 2018-15, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The ASU is effective for annual reporting periods beginning after December 15, 2019, including interim reporting periods within those annual periods, with early adoption permitted. Entities have the option to apply the guidance prospectively to all implementation costs incurred after the date of adoption or retrospectively. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures.

In August 2018, the FASB issued ASU 2018-13 which eliminates, adds and modifies certain fair value measurement disclosures. The ASU is effective for annual reporting periods beginning after December 15, 2019, including interim reporting periods within those annual periods, with early adoption permitted. We do not expect the adoption of this standard to have a material impact to our consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07 simplifying the accounting for nonemployee share-based payment awards by expanding the scope of ASC Topic 718, Compensation - Stock Compensation, to include share-based payment transactions for acquiring goods and services from nonemployees. Under the new standard, most of the guidance on stock compensation payments to nonemployees would be aligned with the requirements for share-based payments granted to employees. The ASU is effective for annual reporting periods beginning after December 15, 2018, including interim reporting periods within those annual reporting periods, with early adoption permitted. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures.

In February 2018, the FASB issued ASU 2018-02 allowing reclassification from accumulated other comprehensive income (loss) to retained earnings for the income tax effects resulting from the Act enacted by the U.S. federal government in December 2017. The new guidance eliminates the stranded tax effects resulting from the Act and will improve the usefulness of information reported to financial statement users. It also requires certain disclosures about stranded tax effects. ASU 2018-02 relates only to the reclassification of the income tax effects of the Act and does not change the underlying guidance requiring that the effect of a change in tax laws or rates be included in income from continuing operations. The ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. It should be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal corporate income tax rate in the Act is recognized. Early adoption is permitted. We adopted this guidance during the second quarter of 2018. We elected not to reclassify the income tax effects of the Act from accumulated other comprehensive income (loss) to retained earnings.

In May 2017, the FASB issued ASU 2017-09 clarifying when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The new guidance will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as modifications. It does not change the accounting for modifications. The ASU was effective prospectively for reporting periods beginning after December 15, 2017, with early adoption permitted, including adoption in any interim period for which financial statements have not yet been issued. The adoption of this ASU did not have an impact on our consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04 simplifying the accounting for goodwill impairment for all entities. The new guidance eliminates the requirement to calculate the implied fair value of goodwill (Step 2 of the current two-step goodwill impairment test under ASC 350). Instead, entities will record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value (Step 1 of the current two-step goodwill impairment test). The ASU is effective prospectively for reporting periods beginning after December 15, 2019, with early adoption permitted for annual and interim goodwill impairment testing dates after January 1, 2017. We are currently evaluating the impact of the new guidance on our goodwill impairment testing process and consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18 amending the presentation of restricted cash within the statement of cash flows. The new guidance requires that restricted cash be included within cash and cash equivalents on the statement of cash flows. The ASU was effective retrospectively for reporting periods beginning after December 15, 2017, with early adoption permitted. We adopted this guidance effective January 1, 2018.

In August 2016, the FASB issued ASU 2016-15 clarifying how entities should classify certain cash receipts and payments on the statement of cash flows. The new guidance addresses classification of cash flows related to the following transactions: 1) debt prepayment or debt extinguishment costs; 2) settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; 3) contingent consideration payments made after a business combination; 4) proceeds from the settlement of insurance claims; 5) proceeds from the settlement of corporate-owned life insurance policies; 6) distributions received from equity method investees; and 7) beneficial interests in securitization transactions. ASU 2016-15 also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. This ASU was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017 and required retrospective application. Early adoption was permitted. We adopted this guidance effective January 1, 2018 and the impact related to this implementation was immaterial.

In June 2016, the FASB issued ASU 2016-13 amending how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The guidance requires the application of a current expected credit loss model, which is a new impairment model based on expected losses. Under this model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019 with early adoption permitted for annual reporting periods beginning after December 15, 2018. We are currently evaluating the impact of the new guidance on our consolidated financial statements and related disclosures. This ASU applies to trade accounts receivable and may have an impact on our calculation of the allowance for uncollectible accounts receivable.

In February 2016, the FASB issued ASU 2016-02 amending the existing accounting standards for lease accounting and requiring lessees to recognize lease assets and lease liabilities for all leases with lease terms of more than 12 months, including those classified as operating leases. Both the asset and liability will initially be measured at the present value of the future minimum lease payments, with the asset being subject to adjustments such as initial direct costs. Consistent with current U.S. GAAP, the presentation of expenses and cash flows will depend primarily on the classification of the lease as either a finance or an operating lease. The new standard also requires additional quantitative and qualitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases in order to provide additional information about the nature of an organization’s leasing activities. This ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018 and requires modified retrospective application. Early adoption is permitted. In July 2018, the FASB issued ASU 2018-11, which provided entities with an additional transition method to adopt the new lease standard at the adoption date, as compared to the beginning of the earliest period presented, and recognize a cumulative-effect adjustment to the beginning balance of retained earnings in the period of adoption. We expect to elect this transition method at the adoption date.

A cross-functional implementation team is working to assess the impact of the standard. We continue to make progress with upgrading our lease accounting software and developing processes to determine key judgments, such as the discount rates to be used for required present value calculations. We believe that our adoption of this standard will likely have a material impact to our consolidated balance sheets for the recognition of certain operating leases as right-of-use assets and lease liabilities. Our operating lease obligations are described in the Commitments footnote of our 2017 Form 10-K. Based on our preliminary assessment, we do not expect this standard to have a material impact to our consolidated statements of earnings.

In January 2016, the FASB issued ASU 2016-01 amending the current guidance for how entities measure certain equity investments, the accounting for financial liabilities under the fair value option, and the presentation and disclosure requirements relating to financial instruments. The new guidance requires entities to use fair value measurement for equity investments in unconsolidated entities, excluding equity method investments, and to recognize the changes in fair value in net income at the end of each reporting period. Under the new standard, for any financial liabilities in which the fair value option has been elected, the changes in fair value due to instrument-specific credit risk must be recognized separately in other comprehensive income. Presentation and disclosure requirements under the new guidance require public business entities to use the exit price when measuring the fair value of financial instruments measured at amortized cost. In addition, financial assets and liabilities must now be presented separately in the notes to the financial statements and grouped by measurement category and form of financial asset. This ASU was effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption was only permitted for the financial liability provision. We adopted this guidance effective January 1, 2018. See Investment in Persol Holdings footnote for the impact on the financial statements.

In May 2014, the FASB issued new revenue recognition guidance under ASU 2014-09 that superseded the existing revenue recognition guidance under U.S. GAAP. The new standard focused on creating a single source of revenue guidance for revenue arising from contracts with customers for all industries. The objective of the new standard was for companies to recognize revenue when it transfers the promised goods or services to its customers at an amount that represents what the company expects to be entitled to in exchange for those goods or services. In July 2015, the FASB deferred the effective date by one year (ASU 2015-14). This ASU was effective for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2017. Since the issuance of the original standard, the FASB issued several other subsequent updates including the following: 1) clarification of the implementation guidance on principal versus agent considerations (ASU 2016-08); 2) further guidance on identifying performance obligations in a contract as well as clarifications on the licensing implementation guidance (ASU 2016-10); 3) rescission of several SEC Staff Announcements that are codified in Topic 605 (ASU 2016-11); 4) additional guidance and practical expedients in response to identified implementation issues (ASU 2016-12); and 5) technical corrections and improvements (ASU 2016-20). We adopted this guidance with the modified retrospective approach effective January 1, 2018. See Revenue footnote for the impact on the financial statements.

Management has evaluated other recently issued accounting pronouncements and does not believe that any of these pronouncements will have a significant impact on our consolidated financial statements and related disclosures.