Income Taxes	3 Months Ended
Mar. 31, 2018
Income Taxes
Income Taxes	12. Income Taxes For the three months ended March 31, 2018, the Company recorded income tax expense of $2,650, which resulted in an effective tax rate of (17.2)%. The tax expense is net of a tax benefit of $1,060 related to windfall tax benefits generated from the vesting of restricted stock, disqualifying dispositions and exercising of nonqualified stock options during the period. The negative effective tax rate is primarily the result of the contingent consideration adjustment related to the SRx acquisition, which is not deductible for income tax purposes. Accordingly, the Company recorded an income tax provision on its net loss for the quarter based on its expected effective rate for the full year. For the three months ended March 31, 2017, the Company recognized tax expense of $95, which resulted in an effective tax rate of (3.8)%. The Company had recorded a full valuation allowance against its deferred tax assets as of March 31, 2017. Accordingly, the year to date tax benefit was limited to the amount of the benefit that can be recognized for the full year, and the Company used the actual effective tax rate for the year to date as its best estimate to determine the Company’s tax expense for the three months ended March 31, 2017.

12. Income Taxes

For the three months ended March 31, 2018, the Company recorded income tax expense of $2,650, which resulted in an effective tax rate of (17.2)%. The tax expense is net of a tax benefit of $1,060 related to windfall tax benefits generated from the vesting of restricted stock, disqualifying dispositions and exercising of nonqualified stock options during the period. The negative effective tax rate is primarily the result of the contingent consideration adjustment related to the SRx acquisition, which is not deductible for income tax purposes. Accordingly, the Company recorded an income tax provision on its net loss for the quarter based on its expected effective rate for the full year.

For the three months ended March 31, 2017, the Company recognized tax expense of $95, which resulted in an effective tax rate of (3.8)%. The Company had recorded a full valuation allowance against its deferred tax assets as of March 31, 2017. Accordingly, the year to date tax benefit was limited to the amount of the benefit that can be recognized for the full year, and the Company used the actual effective tax rate for the year to date as its best estimate to determine the Company’s tax expense for the three months ended March 31, 2017.