Segment and Geographical Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Segment Reporting [Abstract]
Number of segments | segment			2
Segment Reporting Information [Line Items]
Revenues	$ 186,782	$ 176,737	$ 518,221	$ 520,648
Cost of revenues	101,929	95,229	291,201	281,178
Gross profit	84,853	81,508	227,020	239,470
Operating expenses	75,139	76,580	236,946	232,808
Income (loss) from operations	9,714	4,928	(9,926)	6,662
Property and equipment, net	40,219		40,219		$ 42,011
United States
Segment Reporting Information [Line Items]
Revenues	164,190	155,989	449,755	445,470
Property and equipment, net	33,620		33,620		36,497
Rest of world
Segment Reporting Information [Line Items]
Revenues	22,592	20,748	68,466	75,178
Property and equipment, net	6,599		6,599		$ 5,514
Operating segments
Segment Reporting Information [Line Items]
Revenues	186,782	176,737	518,221	520,648
Cost of revenues	101,929	95,229	291,201	281,178
Gross profit	84,853	81,508	227,020	239,470
Operating expenses	56,750	55,260	177,847	168,626
Income (loss) from operations	28,103	26,248	49,173	70,844
Operating segments | Automation and analytics
Segment Reporting Information [Line Items]
Revenues	154,651	152,437	427,250	450,043
Cost of revenues	79,740	77,828	229,218	233,401
Gross profit	74,911	74,609	198,032	216,642
Operating expenses	46,849	49,123	146,651	151,108
Income (loss) from operations	28,062	25,486	51,381	65,534
Operating segments | Medication adherence
Segment Reporting Information [Line Items]
Revenues	32,131	24,300	90,971	70,605
Cost of revenues	22,189	17,401	61,983	47,777
Gross profit	9,942	6,899	28,988	22,828
Operating expenses	9,901	6,137	31,196	17,518
Income (loss) from operations	41	762	(2,208)	5,310
Corporate
Segment Reporting Information [Line Items]
Operating expenses	$ 18,389	$ 21,320	$ 59,099	$ 64,182