Goodwill and Intangible Assets - Carrying Amount of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Goodwill [Roll Forward]
Net balance as of December 31, 2014	$ 122,720
Foreign currency exchange rate fluctuations	808
Net balance as of June 30, 2015	149,654
Automation and Analytics [Member]
Goodwill [Roll Forward]
Net balance as of December 31, 2014	28,543
Foreign currency exchange rate fluctuations	729
Net balance as of June 30, 2015	55,398
Medication Adherence [Member]
Goodwill [Roll Forward]
Net balance as of December 31, 2014	94,177
Foreign currency exchange rate fluctuations	79
Net balance as of June 30, 2015	94,256
Mach4 [Member]
Goodwill [Roll Forward]
Goodwill acquired - Mach4	10,520
Mach4 [Member] | Automation and Analytics [Member]
Goodwill [Roll Forward]
Goodwill acquired - Mach4	10,520
Mach4 [Member] | Medication Adherence [Member]
Goodwill [Roll Forward]
Goodwill acquired - Mach4	0
Avantec [Member]
Goodwill [Roll Forward]
Goodwill acquired - Mach4	15,606
Avantec [Member] | Automation and Analytics [Member]
Goodwill [Roll Forward]
Goodwill acquired - Mach4	15,606
Avantec [Member] | Medication Adherence [Member]
Goodwill [Roll Forward]
Goodwill acquired - Mach4	$ 0