Income Taxes (Schedule of Deferred Tax Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Deferred income on sales to distributors	$ 14,178	$ 14,246
Deferred compensation	24,596	24,664
Stock-based compensation	17,568	16,923
Other accrued expenses and reserves	32,419	33,821
Net operating loss carryforwards	11,339	0
Tax credit carryforwards	35,899	21,829
Gross deferred tax assets	135,999	111,483
Valuation allowance	(24,498)	(18,430)
Deferred tax assets, net of valuation allowance	111,501	93,053
Amortization of acquisition-related intangible assets	(9,536)	(1,183)
Depreciation and amortization	(13,732)	(15,739)
Net deferred tax assets	$ 88,233	$ 76,131