Income taxes	3 Months Ended
Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income taxes	15. Income taxes Income tax provisions for interim periods are based on an estimated annual income tax rate, adjusted for discrete tax items. As a result, the Company’s interim effective tax rates may vary significantly from the statutory tax rate and the annual effective tax rate. For the three months ended March 31, 2020 and 2019, the effective tax rate was (355.6%) and 117.6%, respectively. The primary factors affecting the Company’s effective tax rate for the three months ended March 31, 2020, were statute expirations related to unrecognized tax benefits, financial benefits not recognized for tax purposes, primarily related to the remeasurement of contingent consideration, anticipated benefits related to provisions of the CARES Act, and limits on executive compensation. The CARES Act, among other things, includes income tax provisions relating to net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations, and technical corrections to tax depreciation methods for qualified improvement property. As a result of the anticipated impacts of the Act, the Company recognized a net benefit of $3.0 million in the first quarter of 2020. During the first quarter, the statute of limitations expired related to certain unrecognized tax benefits, which resulted in the recognition of a net benefit of $17.8 million. The Company believes it is reasonably possible that, in the next 12 months, the amount of unrecognized tax benefits related to the resolution of federal, state and foreign matters could be reduced by $0.2 million to $0.7 million as audits close and statutes expire.

Income taxes

3 Months Ended

Mar. 31, 2020

15. Income taxes

Income tax provisions for interim periods are based on an estimated annual income tax rate, adjusted for discrete tax items. As a result, the Company’s interim effective tax rates may vary significantly from the statutory tax rate and the annual effective tax rate.

For the three months ended March 31, 2020 and 2019, the effective tax rate was (355.6%) and 117.6%, respectively. The primary factors affecting the Company’s effective tax rate for the three months ended March 31, 2020, were statute expirations related to unrecognized tax benefits, financial benefits not recognized for tax purposes, primarily related to the remeasurement of contingent consideration, anticipated benefits related to provisions of the CARES Act, and limits on executive compensation.

The CARES Act, among other things, includes income tax provisions relating to net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations, and technical corrections to tax depreciation methods for qualified improvement property. As a result of the anticipated impacts of the Act, the Company recognized a net benefit of $3.0 million in the first quarter of 2020.

During the first quarter, the statute of limitations expired related to certain unrecognized tax benefits, which resulted in the recognition of a net benefit of $17.8 million. The Company believes it is reasonably possible that, in the next 12 months, the amount of unrecognized tax benefits related to the resolution of federal, state and foreign matters could be reduced by $0.2 million to $0.7 million as audits close and statutes expire.