Segment and Geographical Information - Financial Performance of Reporting Segments (Details) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($) segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of segments \| segment	2
Number of reportable segments \| segment	2
Revenues	$ 716,165	$ 692,623	$ 484,559
Cost of revenues	394,077	378,823	236,629
Gross profit	322,088	313,800	247,930
Operating expenses	316,334	307,319	199,298
Income from operations	5,754	6,481	48,632
Operating Segments
Segment Reporting Information [Line Items]
Revenues	716,165	692,623	484,559
Cost of revenues	394,077	378,823	236,629
Gross profit	322,088	313,800	247,930
Operating expenses	235,435	223,354	138,342
Income from operations	86,653	90,446	109,588
Operating Segments \| Automation and Analytics
Segment Reporting Information [Line Items]
Revenues	590,392	593,626	390,321
Cost of revenues	308,443	310,967	171,943
Gross profit	281,949	282,659	218,378
Operating expenses	193,700	198,511	114,084
Income from operations	88,249	84,148	104,294
Operating Segments \| Medication Adherence
Segment Reporting Information [Line Items]
Revenues	125,773	98,997	94,238
Cost of revenues	85,634	67,856	64,686
Gross profit	40,139	31,141	29,552
Operating expenses	41,735	24,843	24,258
Income from operations	(1,596)	6,298	5,294
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Operating expenses	$ 80,899	$ 83,965	$ 60,956

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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The net result for the period of deducting operating expenses from operating revenues.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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