Revenue Disaggregated Revenue by Product Line (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 336,060	$ 318,567	$ 975,783	$ 950,553
Infusion Consumables [Member]
Disaggregation of Revenue [Line Items]
Revenues	144,850	116,054	407,419	350,554
Infusion Systems [Member]
Disaggregation of Revenue [Line Items]
Revenues	90,688	88,388	259,683	267,856
IV Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	89,237	101,900	271,834	295,369
Critical Care [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 11,285	$ 12,225	$ 36,847	$ 36,774