Commitments and Contingencies - Commitments, Contingencies and Guarantees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 7,000	$ 6,800	$ 6,900
2016	6,827
2017	6,015
2018	5,392
2019	5,250
2020	5,093
Thereafter	10,083
Total minimum future lease payments	38,660
Purchase obligation due in the next twelve months	$ 28,300
Standard product warrant, duration following installation	30 days
Medication packaging system duration of limited warranties	6 months