Segment Information - Financial Performance of Reporting Segments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$ 440,900us-gaap_SalesRevenueNet	$ 380,585us-gaap_SalesRevenueNet	$ 314,027us-gaap_SalesRevenueNet
Cost of revenues	207,040us-gaap_CostOfGoodsAndServicesSold	177,186us-gaap_CostOfGoodsAndServicesSold	143,439us-gaap_CostOfGoodsAndServicesSold
Gross profit	233,860us-gaap_GrossProfit	203,399us-gaap_GrossProfit	170,588us-gaap_GrossProfit
Operating expenses	184,277us-gaap_OperatingExpenses	168,100us-gaap_OperatingExpenses	143,462us-gaap_OperatingExpenses
Income from operations	49,583us-gaap_OperatingIncomeLoss	35,299us-gaap_OperatingIncomeLoss	27,126us-gaap_OperatingIncomeLoss
Automation and Analytics [Member]
Segment Reporting Information [Line Items]
Revenues	354,095	302,917	260,160
Cost of revenues	151,327	129,314	111,599
Gross profit	202,768	173,603	148,561
Operating expenses	155,156	140,087	127,467
Income from operations	47,612	33,516	21,094
Medication Adherence [Member]
Segment Reporting Information [Line Items]
Revenues	86,805	77,668	53,867
Cost of revenues	55,713	47,872	31,840
Gross profit	31,092	29,796	22,027
Operating expenses	29,121	28,013	15,995
Income from operations	$ 1,971	$ 1,783	$ 6,032

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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 2

-Article 5

Reference 2: 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=26872669&loc=d3e20235-122688

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

+ Details

Name:	us-gaap_GrossProfit
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

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=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Details

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