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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period	$ 38,939	$ 67,842	$ 29,657	$ 116,703
Amounts settled	(3,221)	(9,574)	(5,682)	(21,165)
Changes in fair value recorded in earnings	6,045	(5,507)	18,507	(43,008)
Effect of currency translation	294	169	(425)	400
Changes in Fair Value Recorded in Earnings			18,507
Amounts Settled and Other			(6,107)
End of period	42,057	$ 52,930	42,057	$ 52,930
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			2,119
Amounts Settled and Other			(702)
End of period	14,624		14,624
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			15,600
Amounts Settled and Other			(3,500)
End of period	18,900		18,900
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			788
Amounts Settled and Other			(1,905)
End of period	$ 8,533		$ 8,533