Condensed Consolidated Statements of Comprehensive (Loss) Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenues, net	$ 184,063	$ 253,420
Cost of sales (exclusive of amortization of intangibles, included within operating expenses below)	101,835	104,651
GROSS PROFIT	82,228	148,769
Selling, general and administrative expenses	62,983	47,583
Acquisition-related costs	11	11
Research and development expenses	30,967	11,291
Amortization of intangibles	13,190	15,471
Impairment of intangible assets	492	0
TOTAL OPERATING EXPENSES	107,643	74,356
OPERATING (LOSS) INCOME	(25,415)	74,413
Amortization of deferred financing costs	(1,304)	(1,304)
Interest expense, net	(9,578)	(9,566)
Other non-operating income, net	270	1,783
(LOSS) INCOME BEFORE INCOME TAXES	(36,027)	65,326
Income tax (benefit) provision	(7,280)	24,299
CONSOLIDATED NET (LOSS) INCOME	$ (28,747)	$ 41,027
CONSOLIDATED NET (LOSS) INCOME PER SHARE
CONSOLIDATED NET (LOSS) INCOME PER SHARE, BASIC (in Dollars per share)	$ (0.23)	$ 0.33
CONSOLIDATED NET (LOSS) INCOME PER SHARE, DILUTED (in Dollars per share)	$ (0.23)	$ 0.33
SHARES USED IN COMPUTING NET (LOSS) INCOME PER SHARE
BASIC (in Shares)	125,240	124,421
DILUTED (in Shares)	125,240	124,666
COMPREHENSIVE (LOSS) INCOME
Consolidated net (loss) income	$ (28,747)	$ 41,027
Unrealized holding (loss) gain on available-for-sale securities, net of tax of $0 and $75 for the three months ended March 31, 2018 and 2017, respectively.	(1)	128
Foreign currency translation (loss) gain	(848)	4,026
Pension liability adjustment net of tax of ($1) and $57 for the three months ended March 31, 2018 and 2017, respectively.	4	223
COMPREHENSIVE (LOSS) INCOME	$ (29,592)	$ 45,404