Segment Information - Financial Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues, net:
Revenues, net	$ 165,625	$ 202,428	$ 540,632	$ 654,988
Gross Profit:
Total gross profit	57,262	97,763	220,769	349,301
Operating expenses	133,242	89,003	413,330	250,584
OPERATING (LOSS) INCOME	(75,980)	8,760	(192,561)	98,717
Other expenses, net	(12,559)	(10,697)	(36,261)	(28,578)
(LOSS) INCOME BEFORE INCOME TAXES	(88,539)	(1,937)	(228,822)	70,139
Prescription Pharmaceuticals
Revenues, net:
Revenues, net	148,469	186,988	484,933	607,012
Gross Profit:
Total gross profit	50,231	91,254	197,025	328,116
Consumer Health
Revenues, net:
Revenues, net	17,156	15,440	55,699	47,976
Gross Profit:
Total gross profit	$ 7,031	$ 6,509	$ 23,744	$ 21,185