Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s tax provision for interim periods is determined using an estimate of its annual effective income tax rate, adjusted for discrete items, if any, in each period. Each quarter, the Company updates its estimated annual effective income tax rate, and if the estimated income tax rate changes, a cumulative adjustment is made. The effective income tax rates for the first nine months of 2017 and 2016 were 28.6% and 18.3%, respectively. The rates for both periods reflect the reversal of various income tax accruals, totaling $1.4 million in 2017 and $4.0 million in 2016, relating to previous uncertain tax positions for which the statutes of limitations expired. The Company recognizes accrued interest and penalties related to uncertain tax positions in income tax expense.

Income Taxes

9 Months Ended

Sep. 30, 2017

The Company’s tax provision for interim periods is determined using an estimate of its annual effective income tax rate, adjusted for discrete items, if any, in each period. Each quarter, the Company updates its estimated annual effective income tax rate, and if the estimated income tax rate changes, a cumulative adjustment is made. The effective income tax rates for the first nine months of 2017 and 2016 were 28.6% and 18.3%, respectively. The rates for both periods reflect the reversal of various income tax accruals, totaling $1.4 million in 2017 and $4.0 million in 2016, relating to previous uncertain tax positions for which the statutes of limitations expired. The Company recognizes accrued interest and penalties related to uncertain tax positions in income tax expense.