Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Revenues, net	$ 280,734	$ 220,920	$ 549,081	$ 448,298
Cost of sales (exclusive of amortization of intangibles, included within operating expenses below)	108,961	92,513	214,291	189,728
GROSS PROFIT	171,773	128,407	334,790	258,570
Selling, general and administrative expenses	53,971	35,208	103,057	65,194
Acquisition-related costs	136	225	333	1,482
Research and development expenses	8,868	10,588	18,347	19,864
Amortization of intangible assets	16,430	16,284	32,948	32,661
Impairment of intangible assets	0	0	158	0
TOTAL OPERATING EXPENSES	79,405	62,305	154,843	119,201
OPERATING INCOME	92,368	66,102	179,947	139,369
Amortization of deferred financing costs	(1,872)	(1,026)	(8,183)	(2,022)
Interest expense, net	(10,768)	(13,235)	(22,286)	(26,715)
Bargain purchase gain	0	0	0	849
Other non-operating income (expense), net	547	(1,483)	(2,631)	(2,795)
INCOME BEFORE INCOME TAXES	80,275	50,358	146,847	108,686
Income tax provision	18,282	17,850	42,968	38,640
CONSOLIDATED NET INCOME	$ 61,993	$ 32,508	$ 103,879	$ 70,046
CONSOLIDATED NET INCOME PER SHARE
CONSOLIDATED NET INCOME, BASIC (in Dollars per share)	$ 0.51	$ 0.28	$ 0.86	$ 0.61
CONSOLIDATED NET INCOME, DILUTED (in Dollars per share)	$ 0.50	$ 0.27	$ 0.83	$ 0.57
SHARES USED IN COMPUTING NET INCOME PER SHARE
BASIC (in Shares)	121,374	115,808	120,401	114,587
DILUTED (in Shares)	125,924	125,919	125,934	125,650
COMPREHENSIVE INCOME
Consolidated net income	$ 61,993	$ 32,508	$ 103,879	$ 70,046
Unrealized holding gain on available-for-sale securities, net of tax of ($961) and ($53) for the three month periods ended June 30, 2016 and 2015, and ($575) and ($112) for the six month periods ended June 30, 2016 and 2015, respectively.	1,629	89	975	190
Foreign currency translation (loss) gain, net of tax of $844 and $49 for the three month periods ended June 30, 2016 and 2015 and $397 and ($984) for the six month periods ended June 30, 2016 and 2015, respectively.	(1,308)	(95)	(439)	1,913
Pension liability adjustment, net of tax of $694 for the three and six month period ended June 30, 2016, respectively.	(2,727)	0	(2,727)	0
COMPREHENSIVE INCOME	$ 59,587	$ 32,502	$ 101,688	$ 72,149