Supplemental Cash Flow Information

9 Months Ended

Sep. 30, 2016

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

	Three months ended						Nine months ended
	September 30, 2016			September 30, 2015			September 30, 2016		September 30, 2015
Supplemental disclosures:	(in thousands)
Interest paid	$	—		$	—		$	—	$	—
Income taxes paid	$	8,551		$	6,321		$	19,398	$	17,167
Non-cash investing and financing activities:
Non-cash capital expenditures	$	(1,211	)	$	(17	)	$	101	$	(190	)