Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 761,333	$ 1,111,286
Marketable securities	1,875,660	1,613,082
Accounts receivable, net of rebates and allowances of $6,061 and $6,160, respectively	352,159	391,987
Inventories	261,798	243,825
Prepaid expenses and other current assets	85,949	111,456
Total current assets	3,336,899	3,471,636
Property and equipment, net	37,806	39,273
Acquisition-related intangible assets, net	89,373	45,235
Goodwill	84,781	54,855
Investments	4,150	4,150
Operating lease right-of-use assets	83,377	87,770
Deferred tax assets	448,432	452,025
Other assets	27,027	30,346
TOTAL ASSETS	4,111,845	4,185,290
CURRENT LIABILITIES:
Accounts payable	84,815	92,105
Accrued liabilities	100,443	140,249
Deferred revenue	332,175	312,668
Other current liabilities	55,574	52,052
Total current liabilities	573,007	597,074
Income taxes payable	58,507	55,485
Operating lease liabilities, non-current	78,502	83,022
Deferred revenue, non-current	264,600	262,620
Deferred tax liabilities, non-current	250,304	254,710
Other long-term liabilities	38,099	37,693
TOTAL LIABILITIES	1,263,019	1,290,604
Commitments and contingencies (Note 6)
STOCKHOLDERS’ EQUITY:
Preferred stock, $0.0001 par value—100,000 shares authorized and no shares issued and outstanding as of March 31, 2020 and December 31, 2019	0	0
Common stock, $0.0001 par value—1,000,000 shares authorized as of March 31, 2020 and December 31, 2019; 75,655 and 76,389 shares issued and outstanding as of March 31, 2020 and December 31, 2019	8	8
Additional paid-in capital	1,149,224	1,106,305
Retained earnings	1,698,766	1,788,230
Accumulated other comprehensive income (loss)	828	143
TOTAL STOCKHOLDERS’ EQUITY	2,848,826	2,894,686
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 4,111,845	$ 4,185,290