Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 823,475	$ 567,923
Marketable securities	301,364	299,910
Accounts receivable, net of allowances of $4,192 and $1,521, respectively	269,624	253,119
Inventories	363,803	236,490
Prepaid expenses and other current assets	190,923	168,684
Total current assets	1,949,189	1,526,126
Property and equipment, net	75,840	76,961
Investments	36,136	36,136
Deferred tax assets	81,469	70,960
Other assets	20,306	18,824
TOTAL ASSETS	2,162,940	1,729,007
CURRENT LIABILITIES:
Accounts payable	80,418	79,457
Accrued liabilities	84,413	90,951
Deferred revenue	426,750	273,350
Other current liabilities	19,216	15,795
Total current liabilities	610,797	459,553
Income taxes payable	19,970	14,498
Lease financing obligations, non-current	38,672	39,593
Deferred revenue, non-current	127,760	99,585
Other long-term liabilities	7,992	7,958
TOTAL LIABILITIES	805,191	621,187
Commitments and contingencies (Note 5)
STOCKHOLDERS’ EQUITY:
Preferred stock, $0.0001 par value—100,000 shares authorized, no shares issued and outstanding as of June 30, 2017 and December 31, 2016	0	0
Common stock, $0.0001 par value—1,000,000 shares authorized as of June 30, 2017 and December 31, 2016; 72,450 and 70,811 shares issued and outstanding as of June 30, 2017 and December 31, 2016, respectively	7	7
Additional paid-in capital	737,436	674,183
Retained earnings	621,559	435,105
Accumulated other comprehensive loss	(1,253)	(1,475)
TOTAL STOCKHOLDERS’ EQUITY	1,357,749	1,107,820
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 2,162,940	$ 1,729,007