Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 307,471	$ 327,169	$ 950,685	$ 1,059,662
Infusion Systems [Member]
Disaggregation of Revenue [Line Items]
Revenues	78,932	$ 81,456	244,523	$ 263,271
Equipment revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount	6,300		6,300
Software revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 1,400		$ 1,400