Income Taxes	6 Months Ended
Jul. 01, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax benefit was $15.6 million for the second quarter of 2018 and income tax expense was $1.5 million for the second quarter of 2017. Income tax benefit was $9.2 million for June year to date 2018 and income tax expense was $4.2 million for June year to date 2017. Income taxes in the second quarter and June year to date of 2018 benefited from a lower U.S. tax rate and a loss on the Persol Holdings investment. Our tax expense is affected by recurring items, such as the amount of pretax income and its mix by jurisdiction, U.S. work opportunity credits and the change in cash surrender value of non-taxable investments in life insurance policies. It is also affected by discrete items that may occur in any given period but are not consistent from period to period, such as tax law changes, changes in judgment regarding the realizability of deferred tax assets, or the tax effects of stock compensation. With the Company’s adoption of ASU 2016-01 in the first quarter of 2018, changes in the fair value of the Company’s investment in Persol Holdings are now recognized in the consolidated statements of earnings. These investment gains or losses are treated as discrete since they cannot be estimated.

Income Taxes

Income tax benefit was $15.6 million for the second quarter of 2018 and income tax expense was $1.5 million for the second quarter of 2017. Income tax benefit was $9.2 million for June year to date 2018 and income tax expense was $4.2 million for June year to date 2017. Income taxes in the second quarter and June year to date of 2018 benefited from a lower U.S. tax rate and a loss on the Persol Holdings investment.

Our tax expense is affected by recurring items, such as the amount of pretax income and its mix by jurisdiction, U.S. work opportunity credits and the change in cash surrender value of non-taxable investments in life insurance policies. It is also affected by discrete items that may occur in any given period but are not consistent from period to period, such as tax law changes, changes in judgment regarding the realizability of deferred tax assets, or the tax effects of stock compensation. With the Company’s adoption of ASU 2016-01 in the first quarter of 2018, changes in the fair value of the Company’s investment in Persol Holdings are now recognized in the consolidated statements of earnings. These investment gains or losses are treated as discrete since they cannot be estimated.