Revenue from Contracts with Customers - Schedule of Manufacturing and Royalty Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation Of Revenue [Line Items]
Total revenues	$ 247,529	$ 279,872	$ 493,749	$ 502,974
Manufacturing Revenue
Disaggregation Of Revenue [Line Items]
Total revenues	25,341	38,379	65,552	69,326
Royalty
Disaggregation Of Revenue [Line Items]
Total revenues	91,164	89,518	167,204	167,486
Manufacturing and royalty revenues
Disaggregation Of Revenue [Line Items]
Total revenues	116,505	127,897	232,756	236,812
INVEGA SUSTENNA/XEPLION & INVEGA TRINZA/TREVICTA | Royalty
Disaggregation Of Revenue [Line Items]
Total revenues	69,385	67,289	124,312	120,586
INVEGA SUSTENNA/XEPLION & INVEGA TRINZA/TREVICTA | Manufacturing and royalty revenues
Disaggregation Of Revenue [Line Items]
Total revenues	69,385	67,289	124,312	120,586
RISPERDAL CONSTA | Manufacturing Revenue
Disaggregation Of Revenue [Line Items]
Total revenues	10,193	20,506	33,776	38,428
RISPERDAL CONSTA | Royalty
Disaggregation Of Revenue [Line Items]
Total revenues	3,536	4,068	7,269	8,453
RISPERDAL CONSTA | Manufacturing and royalty revenues
Disaggregation Of Revenue [Line Items]
Total revenues	13,729	24,574	41,045	46,881
Other | Manufacturing Revenue
Disaggregation Of Revenue [Line Items]
Total revenues	15,148	17,873	31,776	30,898
Other | Royalty
Disaggregation Of Revenue [Line Items]
Total revenues	18,243	18,161	35,623	38,447
Other | Manufacturing and royalty revenues
Disaggregation Of Revenue [Line Items]
Total revenues	$ 33,391	$ 36,034	$ 67,399	$ 69,345