Segment and Geographical Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) segment	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment			2
Number of reportable segments | segment			2
Segment Reporting Information [Line Items]
Revenues	$ 204,267	$ 186,748	$ 575,559	$ 516,343
Cost of revenues	105,358	101,929	305,412	291,201
Gross profit	98,909	84,819	270,147	225,142
Operating expenses	81,414	72,622	244,685	230,198
Income (loss) from operations	17,495	12,197	25,462	(5,056)
Property and equipment, net	50,484		50,484		$ 42,595
United States
Segment Reporting Information [Line Items]
Revenues	180,635	164,156	502,481	447,877
Property and equipment, net	43,511		43,511		34,899
Rest of world
Segment Reporting Information [Line Items]
Revenues	23,632	22,592	73,078	68,466
Property and equipment, net	6,973		6,973		$ 7,696
Automation and analytics
Segment Reporting Information [Line Items]
Revenues		154,617		425,371
Gross profit		74,877		196,154
Medication adherence
Segment Reporting Information [Line Items]
Revenues		32,131		90,972
Gross profit		9,942		28,988
Operating segments
Segment Reporting Information [Line Items]
Revenues	204,267	186,748	575,559	516,343
Cost of revenues	105,358	101,929	305,412	291,201
Gross profit	98,909	84,819	270,147	225,142
Operating expenses	56,639	54,233	173,691	171,098
Income (loss) from operations	42,270	30,586	96,456	54,044
Operating segments | Automation and analytics
Segment Reporting Information [Line Items]
Revenues	168,303	154,617	478,074	425,371
Cost of revenues	77,172	79,740	234,100	229,217
Gross profit	91,131	74,877	243,974	196,154
Operating expenses	46,015	44,332	142,572	139,902
Income (loss) from operations	45,116	30,545	101,402	56,252
Operating segments | Medication adherence
Segment Reporting Information [Line Items]
Revenues	35,964	32,131	97,485	90,972
Cost of revenues	28,186	22,189	71,312	61,984
Gross profit	7,778	9,942	26,173	28,988
Operating expenses	10,624	9,901	31,119	31,196
Income (loss) from operations	(2,846)	41	(4,946)	(2,208)
Corporate
Segment Reporting Information [Line Items]
Operating expenses	24,775	18,389	70,994	59,100
Product revenues
Segment Reporting Information [Line Items]
Revenues	149,709	136,838	415,004	365,834
Cost of revenues	79,149	79,725	229,642	225,051
Product revenues | Operating segments
Segment Reporting Information [Line Items]
Revenues	149,709	136,838	415,004	365,834
Cost of revenues	79,149	79,725	229,642	225,051
Product revenues | Operating segments | Automation and analytics
Segment Reporting Information [Line Items]
Revenues	120,248	110,368	335,441	292,463
Cost of revenues	54,958	59,811	168,506	170,974
Product revenues | Operating segments | Medication adherence
Segment Reporting Information [Line Items]
Revenues	29,461	26,470	79,563	73,371
Cost of revenues	24,191	19,914	61,136	54,077
Services and other revenues
Segment Reporting Information [Line Items]
Revenues	54,558	49,910	160,555	150,509
Cost of revenues	26,209	22,204	75,770	66,150
Services and other revenues | Operating segments
Segment Reporting Information [Line Items]
Revenues	54,558	49,910	160,555	150,509
Cost of revenues	26,209	22,204	75,770	66,150
Services and other revenues | Operating segments | Automation and analytics
Segment Reporting Information [Line Items]
Revenues	48,055	44,249	142,633	132,908
Cost of revenues	22,214	19,929	65,594	58,243
Services and other revenues | Operating segments | Medication adherence
Segment Reporting Information [Line Items]
Revenues	6,503	5,661	17,922	17,601
Cost of revenues	$ 3,995	$ 2,275	$ 10,176	$ 7,907