Income taxes

6 Months Ended

Jun. 30, 2019

Income Tax Disclosure [Abstract]

Income taxes

Income taxes 

The effective tax rates for the Company were (0.2)% and (0.7)% for the three months ended June 30, 2019 and June 30, 2018, respectively. These effective tax rates include the impact of discrete items of approximately $0 million and $0.2 million for the three months ended June 30, 2019 and 2018, respectively

The effective tax rates for the Company were (0.3)% and (32.2)% for the six months ended June 30, 2019 and June 30, 2018, respectively. These effective tax rates include the impact of discrete items of approximately $0 million and $1.1 million for the six months ended June 30, 2019 and 2018, respectively

The difference is primarily due to the full valuation allowance recorded during the six months ended June 30, 2019. There was no valuation allowance recorded in the same period in 2018. In addition, the Company recorded significant permanent differences related to stock-based compensation during the six months ended June 30, 2018.