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		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period	$ 52,930	$ 152,098	$ 116,703	$ 190,442
Amounts settled	(9,376)	(24,564)	(30,541)	(73,298)
Changes in fair value recorded in earnings	16,025	769	(26,983)	11,731
Effect of currency translation	(85)	167	315	(405)
Changes in Fair Value Recorded in Earnings			(26,983)
Amounts Settled and Other			(30,226)
End of period	59,494	$ 128,470	59,494	$ 128,470
Auxilium acquisition
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period			14,157
Changes in Fair Value Recorded in Earnings			1,086
Amounts Settled and Other			(388)
End of period	14,855		14,855
Lehigh Valley Technologies, Inc. acquisitions
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period			34,700
Changes in Fair Value Recorded in Earnings			10,566
Amounts Settled and Other			(14,466)
End of period	30,800		30,800
VOLTAREN® Gel acquisition
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period			56,240
Changes in Fair Value Recorded in Earnings			(37,395)
Amounts Settled and Other			(14,601)
End of period	4,244		4,244
Other
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning of period			11,606
Changes in Fair Value Recorded in Earnings			(1,240)
Amounts Settled and Other			(771)
End of period	$ 9,595		$ 9,595