Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 312,282	$ 360,460	$ 643,214	$ 732,493
Infusion Systems [Member]
Disaggregation of Revenue [Line Items]
Revenues	81,309	$ 88,376	165,591	$ 181,815
Equipment revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount	4,500		4,500
Software revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 1,400		$ 1,400