Fair Value Measurements - Financial Liabilities Measured At Fair Value On Recurring Basis Using Significant Unobservable Inputs (Details) - Acquisition-related contingent consideration - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period	$ 29,657	$ 116,703
Amounts settled	(2,461)	(11,591)
Changes in fair value recorded in earnings	12,462	(37,501)
Effect of currency translation	(719)	231
Changes in Fair Value Recorded in Earnings	12,462
Amounts Settled and Other	(3,180)
End of period	38,939	$ 67,842
Auxilium acquisition
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period	13,207
Changes in Fair Value Recorded in Earnings	(54)
Amounts Settled and Other	0
End of period	13,153
Lehigh Valley Technologies, Inc. acquisitions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period	6,800
Changes in Fair Value Recorded in Earnings	12,897
Amounts Settled and Other	(2,097)
End of period	17,600
Other
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period	9,650
Changes in Fair Value Recorded in Earnings	(381)
Amounts Settled and Other	(1,083)
End of period	$ 8,186