Income Taxes (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Uncertainties [Abstract]

Unrecognized Tax Benefits Related To Uncertain Tax Positions [Table Text Block]

The net interest and penalties expense recognized were as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2017			2016		2017			2016
	(in thousands)
Net interest and penalties expense (benefit)	$	(746	)	$	591	$	(334	)	$	923

Accrued interest and penalties recognized were as follows:

	September 30, 2017		December 31, 2016
	(in thousands)
Accrued interest	$	2,879	$	2,473
Accrued penalties	2,412		2,329

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, 2017		December 31, 2016
	(in thousands)
Unrecognized tax benefits related to uncertain tax positions	$	63,707	$	57,626
The amount of unrecognized tax benefits that, if recognized, would affect our effective tax rate	62,335		56,411