Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Schedule of Selected Information for Each Business Segment

Selected information for each operating segment is as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
(in thousands)	2017			2016			2017			2016
Revenues from external customers
U.S.	$	78,100		$	65,134		$	149,127		$	130,067
International		10,737			12,832			21,069			24,373
Total revenues from external customers	$	88,837		$	77,966		$	170,196		$	154,440
Operating income
U.S.	$	16,895		$	12,895		$	28,063		$	24,293
International		1,002			1,284			1,761			7,559
Operating income		17,897			14,179			29,824			31,852
Interest expense		4,285			6,983			9,705			14,008
Loss on extinguishment of debt		—			—			2,161			—
Other income		(552	)		(401	)		(1,129	)		(466	)
Income before income taxes	$	14,164		$	7,597		$	19,087		$	18,310