Goodwill and Intangible Assets - Carrying Amount of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Goodwill [Roll Forward]
Net balance as of December 31, 2014	$ 122,720
Foreign currency exchange rate fluctuations	(138)
Net balance as of September 30, 2015	148,727
Automation and Analytics [Member]
Goodwill [Roll Forward]
Net balance as of December 31, 2014	28,543
Foreign currency exchange rate fluctuations	194
Net balance as of September 30, 2015	54,882
Medication Adherence [Member]
Goodwill [Roll Forward]
Net balance as of December 31, 2014	94,177
Foreign currency exchange rate fluctuations	(332)
Net balance as of September 30, 2015	93,845
Mach4 [Member]
Goodwill [Roll Forward]
Goodwill acquired	10,539
Mach4 [Member] | Automation and Analytics [Member]
Goodwill [Roll Forward]
Goodwill acquired	10,539
Mach4 [Member] | Medication Adherence [Member]
Goodwill [Roll Forward]
Goodwill acquired	0
Avantec [Member]
Goodwill [Roll Forward]
Goodwill acquired	15,606
Avantec [Member] | Automation and Analytics [Member]
Goodwill [Roll Forward]
Goodwill acquired	15,606
Avantec [Member] | Medication Adherence [Member]
Goodwill [Roll Forward]
Goodwill acquired	$ 0