CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net revenues	$ 550,963	$ 548,971
Cost of net revenues	156,607	146,875
Gross profit	394,356	402,096
Operating expenses:
Selling, general and administrative	282,906	247,110
Research and development	41,532	37,503
Impairments and other charges	0	29,782
Total operating expenses	324,438	314,395
Income from operations	69,918	87,701
Interest income	1,986	2,633
Other income (expense), net	(18,549)	(5,746)
Net income before provision for (benefit from) income taxes and equity in losses of investee	53,355	84,588
Provision for (benefit from) income taxes	(1,464,776)	8,796
Equity in losses of investee, net of tax	0	3,944
Net income	$ 1,518,131	$ 71,848
Net income per share:
Basic (in usd per share)	$ 19.32	$ 0.90
Diluted (in usd per share)	$ 19.21	$ 0.89
Shares used in computing net income per share:
Basic (in shares)	78,592	79,860
Diluted (in shares)	79,028	80,687
Interest Income and Other Income (Expense), Net	$ (16,563)	$ (3,113)
Asset Impairment Charges	$ 0	$ (29,782)