INCOME TAXES

The following table provides a summary of the Company's effective tax rate:



	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Reported tax rate	(35.4	)%	14.6	%	(35.2	)%	12.6	%

The Company’s effective income tax rates for the three months ended June 30, 2017 and 2016 were (35.4)% and 14.6%, respectively. For the three months ended June 30, 2017, the primary drivers of the lower tax rate are lower income before income taxes compared to the same period in 2016, the jurisdictional mix of income before tax in U.S.-based operations relative to foreign operations, and an increase of $3.1 million in excess tax benefits from stock-based compensation for the three months ended June 30, 2017 compared to the same period in 2016. The change in jurisdictional mix of income primarily results from significant 2017 acquisition and integration costs incurred in the U.S. The tax rate for the three months ended June 30, 2016 included a benefit of $0.2 million related to the release of uncertain tax positions.

The Company's effective income tax rates for the six months ended June 30, 2017 and 2016 were (35.2)% and 12.6%, respectively. For the six months ended June 30, 2017, the primary drivers of the lower tax rate are lower income before income taxes compared to the same period in 2016, the jurisdictional mix of income before tax in U.S.-based operations relative to foreign operations, and an increase of $4.0 million in excess tax benefits from stock-based compensation for the six months ended June 30, 2017 compared to the same period in 2016, offset by an expense adjustment of $0.2 million related to filing of foreign income tax returns. The change in jurisdictional mix of income primarily results from significant 2017 acquisition and integration costs incurred in the U.S.

The Company expects its effective income tax rate for the full year to be approximately 8.3%, resulting largely from excess tax benefits from stock-based compensation, federal research credit benefits and the jurisdictional mix of income before tax in U.S.-based operations relative to foreign operations. This estimate could be revised in the future as additional information is presented to the Company.