Investment in PersolKelly Asia Pacific	12 Months Ended
Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Investment in PersolKelly Asia Pacific	Investment in PersolKelly Asia Pacific In 2016, the Company and Persol Holdings (formerly Temp Holdings), a leading integrated human resources company in Japan, completed a transaction to form a new joint venture, PersolKelly Asia Pacific (formerly TS Kelly Asia Pacific). The Company transferred its APAC staffing operations in exchange for a 49% ownership interest in PersolKelly Asia Pacific and $36.5 million in cash received at closing. The Company subsequently deconsolidated the contributed APAC staffing operations and recorded a $104.2 million investment in equity affiliate on the consolidated balance sheet, which represented the fair value of the Company’s ownership interest in PersolKelly Asia Pacific as of the date of the transaction. As part of this transaction, in the third quarter of 2016, the Company deconsolidated the goodwill related to the contributed entities in our previous APAC PT and OCG segments amounting to $1.9 million. In the fourth quarter of 2016, the Company received a $4.5 million post-close cash true-up adjustment from Persol Holdings. The operating results of the Company’s interest in PersolKelly Asia Pacific are accounted for on a one-quarter lag under the equity method and are included in equity in net earnings (loss) of affiliate in the consolidated statement of earnings, which amounted to $2.7 million in 2017 and $1.1 million in 2016. PersolKelly Asia Pacific will perform its annual impairment test of goodwill in its fourth quarter. Any impairment, if required, would then be recorded by the Company based on the one-quarter lag. We would consider any impairment recorded by PersolKelly Asia Pacific to be a triggering event to perform our own impairment analysis regarding our investment in PersolKelly Asia Pacific. In 2015, equity in net earnings (loss) of affiliate represented the operating results of the Company’s interest in TS Kelly Workforce Solutions, a previous joint venture in which the Company held a 49% interest and which was transferred to PersolKelly Asia Pacific during the first quarter of 2017. In the third quarter of 2016, the Company recorded a pretax gain of $87.2 million on the investment in PersolKelly Asia Pacific in the consolidated statement of earnings, which represented the fair value of the Company’s retained investment in PersolKelly Asia Pacific in addition to the cash received less the carrying value of net assets transferred to the joint venture. Income taxes of $23.5 million on this gain resulted primarily from recording deferred income taxes on outside basis differences. The fair value of the Company’s contributed operations was determined using both an income-based and market-based approach. The income approach utilized a discounted cash flow analysis which included significant assumptions about the timing of future cash flows, growth rates and discount rates commensurate with the underlying risks of the investment. The market approach entailed deriving market multiples from publicly traded companies with similar financial and operating characteristics to PersolKelly Asia Pacific and corroborated the results of the discounted cash flow method. The investment in equity affiliate on the Company’s consolidated balance sheet totaled $117.4 million as of year-end 2017 and $114.8 million as of year-end 2016. The net amount due to PersolKelly Asia Pacific, a related party, was $2.3 million as of year-end 2017 and $1.1 million as of year-end 2016. The amount included in trade accounts payable for staffing services provided by PersolKelly Asia Pacific as a supplier to CWO programs was $2.5 million as of year-end 2017 and $3.1 million as of year-end 2016. In 2017, TS Kelly Workforce Solutions made a loan repayment of $0.6 million to the Company and in 2015, we made cash contributions to TS Kelly Workforce Solutions totaling $0.5 million.

Investment in PersolKelly Asia Pacific

In 2016, the Company and Persol Holdings (formerly Temp Holdings), a leading integrated human resources company in Japan, completed a transaction to form a new joint venture, PersolKelly Asia Pacific (formerly TS Kelly Asia Pacific). The Company transferred its APAC staffing operations in exchange for a 49% ownership interest in PersolKelly Asia Pacific and $36.5 million in cash received at closing. The Company subsequently deconsolidated the contributed APAC staffing operations and recorded a $104.2 million investment in equity affiliate on the consolidated balance sheet, which represented the fair value of the Company’s ownership interest in PersolKelly Asia Pacific as of the date of the transaction. As part of this transaction, in the third quarter of 2016, the Company deconsolidated the goodwill related to the contributed entities in our previous APAC PT and OCG segments amounting to $1.9 million. In the fourth quarter of 2016, the Company received a $4.5 million post-close cash true-up adjustment from Persol Holdings.

The operating results of the Company’s interest in PersolKelly Asia Pacific are accounted for on a one-quarter lag under the equity method and are included in equity in net earnings (loss) of affiliate in the consolidated statement of earnings, which amounted to $2.7 million in 2017 and $1.1 million in 2016. PersolKelly Asia Pacific will perform its annual impairment test of goodwill in its fourth quarter. Any impairment, if required, would then be recorded by the Company based on the one-quarter lag. We would consider any impairment recorded by PersolKelly Asia Pacific to be a triggering event to perform our own impairment analysis regarding our investment in PersolKelly Asia Pacific.

In 2015, equity in net earnings (loss) of affiliate represented the operating results of the Company’s interest in TS Kelly Workforce Solutions, a previous joint venture in which the Company held a 49% interest and which was transferred to PersolKelly Asia Pacific during the first quarter of 2017.

In the third quarter of 2016, the Company recorded a pretax gain of $87.2 million on the investment in PersolKelly Asia Pacific in the consolidated statement of earnings, which represented the fair value of the Company’s retained investment in PersolKelly Asia Pacific in addition to the cash received less the carrying value of net assets transferred to the joint venture. Income taxes of $23.5 million on this gain resulted primarily from recording deferred income taxes on outside basis differences. The fair value of the Company’s contributed operations was determined using both an income-based and market-based approach. The income approach utilized a discounted cash flow analysis which included significant assumptions about the timing of future cash flows, growth rates and discount rates commensurate with the underlying risks of the investment. The market approach entailed deriving market multiples from publicly traded companies with similar financial and operating characteristics to PersolKelly Asia Pacific and corroborated the results of the discounted cash flow method.

The investment in equity affiliate on the Company’s consolidated balance sheet totaled $117.4 million as of year-end 2017 and $114.8 million as of year-end 2016. The net amount due to PersolKelly Asia Pacific, a related party, was $2.3 million as of year-end 2017 and $1.1 million as of year-end 2016. The amount included in trade accounts payable for staffing services provided by PersolKelly Asia Pacific as a supplier to CWO programs was $2.5 million as of year-end 2017 and $3.1 million as of year-end 2016. In 2017, TS Kelly Workforce Solutions made a loan repayment of $0.6 million to the Company and in 2015, we made cash contributions to TS Kelly Workforce Solutions totaling $0.5 million.