Income Taxes (Tables)

6 Months Ended

Jun. 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 June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(in thousands)
Net interest and penalties expense	$	315	$	207	$	739	$	413

Accrued interest and penalties recognized were as follows:

	June 30, 2018		December 31, 2017
	(in thousands)
Accrued interest	$	3,334	$	2,706
Accrued penalties	2,359		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:

	June 30, 2018		December 31, 2017
	(in thousands)
Unrecognized tax benefits related to uncertain tax positions	$	75,385	$	56,702
The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate	74,029		55,312