Acquisitions, Strategic Transaction and Integration Expenses Hospira (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Proceeds from Issuance of Debt		$ 75,000	$ 0
Business Combination, Contingent Consideration, Liability, Noncurrent		19,000	0
contingent consideration gross	$ 225,000	225,000
Issuance of common stock for acquisitions		413,139	0
Bargain Purchase Gain	$ 0	70,890	$ 1,456
Hospira [Member]
Business Acquisition [Line Items]
Payment to acquire business, net of working capital adjustments		$ 180,785
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Payments to Acquire Businesses, Gross		$ 260,000
Proceeds from Issuance of Debt		75,000
Business Combination, Contingent Consideration, Liability, Noncurrent		$ 19,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	3,200	3,200
contingent consideration gross		$ 225,000
Earn out Target		$ 1,000,000
Business Acquisition, Share Price		$ 140.75
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable		$ 450,400
Discount on equity issued as consideration		37,261
Issuance of common stock for acquisitions		413,139
Business Combination, Consideration Transferred		687,924
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents		31,082
Business Combination, Acquired Receivable, Fair Value		362
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		417,622
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets		13,911
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		288,134
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		131,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent		25,080
Bargain Purchase Gain		70,890
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets		29,270
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable		12,381
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other		47,936
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities		67,170
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		783,894
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	9 years
Customer Relationships [Member] | Hospira [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		48,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
Pumps and dedicated sets [Domain] | Hospira [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		44,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
developed technology-consumables [Domain] | Hospira [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		34,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	12 years
In Process Research and Development [Member] | Hospira [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets		5,000
Minimum [Member]
Business Acquisition [Line Items]
Adjusted EBITDA		35,000
Maximum [Member]
Business Acquisition [Line Items]
Adjusted EBITDA		$ 40,000