CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 820,678	$ 712,685	$ 546,733
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	48,887	40,845	30,860
(Gain) loss on disposal of property and equipment	(1,161)	(204)	193
Gain on sale of Monster Non-Energy			(161,470)
Stock-based compensation	52,282	45,848	32,719
Loss on put option			250
Gain on investments, net			(250)
Deferred income taxes	67,935	(19,092)	(181,582)
Effect on cash of changes in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	11,822	(86,382)	(77,331)
TCCC Transaction receivable	125,000
Distributor receivables	4,716	(19,981)	600
Inventories	(88,867)	20,875	(7,068)
Prepaid expenses and other current assets	(2,396)	(6,682)	(9,713)
Prepaid income taxes	(71,332)	(48,023)	(11,009)
Accounts payable	29,579	45,340	20,864
Accrued liabilities	(4,499)	(2,852)	43,312
Accrued promotional allowances	21,135	(3,939)	7,009
Accrued distributor terminations	(8,172)	(3,328)	11,196
Accrued compensation	4,491	8,051	4,507
Income taxes payable	(3,590)	4,375	311,534
Other liabilities	1,095
Deferred revenue	(19,872)	13,819	(38,631)
Net cash provided by operating activities	987,731	701,355	522,723
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturities of held-to-maturity investments		868,304	2,089,788
Sales of available-for-sale investments	533,183	120,987	4,001
Sales of trading investments			4,160
Proceeds from the transfer of distribution rights to TCCC			179,658
Proceeds from the sale of Monster Non-Energy			198,008
Purchases of AFF Assets, net		(688,485)
Proceeds from sale of property and equipment	1,416	807	926
Purchases of held-to-maturity investments		(152,050)	(2,033,584)
Purchases of available-for-sale investments	(971,813)	(300,426)
Purchases of property and equipment	(83,435)	(99,819)	(35,605)
Additions to intangibles	(9,693)	(5,518)	(6,888)
(Increase) decrease in other assets	(1,199)	7	(398)
Net cash (used in) provided by investing activities	(531,541)	(256,193)	400,066
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal payments on debt	(2,583)	(2,359)	(1,083)
Issuance of common stock	52,626	16,405	1,696,661
Purchases of common stock held in treasury	(361,178)	(2,252,437)	(807,967)
Net cash (used in) provided by financing activities	(311,135)	(2,238,391)	887,611
Effect of exchange rate changes on cash and cash equivalents	5,985	(4,606)	(5,306)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	151,040	(1,797,835)	1,805,094
CASH AND CASH EQUIVALENTS, beginning of period	377,582	2,175,417	370,323
CASH AND CASH EQUIVALENTS, end of period	528,622	377,582	2,175,417
Cash paid during the period for:
Interest	75	68	29
Income taxes	$ 389,490	$ 431,273	$ 224,928