Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) segment	Jun. 30, 2019 USD ($)
Segment information
Number of reportable segments | segment			2
Revenue	$ 99,109	$ 111,803	$ 212,140	$ 215,782
Gross Profit	61,527	70,240	132,035	135,018
Income/(loss) before income taxes	2,937	13,107	15,270	22,719
Depreciation and amortization	10,879	10,192	21,364	20,213
Capital expenditures	10,126	10,758	17,110	16,092
Operating segments | Healthcare
Segment information
Revenue	84,382	95,004	180,089	183,013
Gross Profit	56,341	64,387	120,765	124,251
Income/(loss) before income taxes	26,005	32,514	55,881	62,122
Depreciation and amortization	8,962	8,327	17,397	16,618
Capital expenditures	8,692	9,080	14,903	13,522
Operating segments | Research
Segment information
Revenue	11,459	13,879	25,279	26,843
Gross Profit	4,426	5,335	10,101	9,669
Income/(loss) before income taxes	919	1,052	2,962	1,816
Depreciation and amortization	923	1,004	1,989	1,932
Capital expenditures	395	1,306	786	1,788
Corporate and Other
Segment information
Revenue	3,268	2,920	6,772	5,926
Gross Profit	760	518	1,169	1,098
Income/(loss) before income taxes	(23,987)	(20,459)	(43,573)	(41,219)
Depreciation and amortization	994	861	1,978	1,663
Capital expenditures	$ 1,039	$ 372	$ 1,421	$ 782