Income Taxes (Tables)

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Unrecognized Tax Benefits Related To Uncertain Tax Positions

The net interest and penalties expense recognized were as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2018		2017			2018		2017
	(in thousands)
Net interest and penalties expense (benefit)	$	414	$	(746	)	$	1,152	$	(334	)

Accrued interest and penalties recognized were as follows:

	September 30, 2018		December 31, 2017
	(in thousands)
Accrued interest	$	3,707	$	2,706
Accrued penalties	2,396		2,426

Unrecognized tax benefits related to uncertain tax positions and the amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate were as follows:

	September 30, 2018		December 31, 2017
	(in thousands)
Unrecognized tax benefits related to uncertain tax positions	$	78,332	$	56,702
The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate	76,958		55,312