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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 |

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