Segment Information (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Summary of reportable segments

	Year Ended December 31, 2019
	Reporting Segment				Corporate and Other			Consolidated
(in thousands)	Healthcare		Research
Revenue	$	372,014	$	54,450	$	12,643		$	439,107
Gross profit	251,114		20,164		2,996			274,274
Income/(loss) before income taxes	122,829		4,653		(87,754		)	39,728
Depreciation and amortization	34,972		4,047		3,957			42,976
Capital expenditures	25,543		3,591		1,573			30,707

	Year Ended December 31, 2018
	Reporting Segment				Corporate and Other			Consolidated
(in thousands)	Healthcare		Research
Revenue	$	338,812	$	50,561	$	10,099		$	399,472
Gross profit	220,883		21,603		8,000			250,486
Income/(loss) before income taxes	98,135		6,228		(62,859		)	41,504
Depreciation and amortization	33,119		3,723		3,326			40,168
Capital expenditures	20,258		3,272		1,107			24,637

	Year Ended December 31, 2017
	Reporting Segment				Corporate and Other			Consolidated
(reclassified, in thousands)	Healthcare		Research
Revenue	$	234,385	$	38,790	$	13,601		$	286,776
Gross profit	153,029		15,909		3,432			172,370
Income/(loss) before income taxes	52,054		1,214		(63,664		)	(10,396		)
Depreciation and amortization	29,255		4,148		(4,842		)	28,561
Capital expenditures	12,542		1,274		(119		)	13,697