Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Consolidated net loss	$ (19,565)	$ (42,892)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property and equipment	6,646	6,575
Amortization of intangible assets	923	1,481
Non-cash operating lease cost	1,630	1,667
Stock-based compensation to employees and directors	3,268	3,985
Deferred income taxes, net	8	895
(Gain)/loss on sale of cryptocurrencies	(219)	9
Impairment of cryptocurrencies	21	318
Impairment of equity securities	0	2,958
Losses on equity method securities	2,468	1,025
Gain on disposal of business	10,705	0
Other non-cash adjustments	1,625	1,858
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(11,141)	14,068
Inventories	1,162	554
Prepaids and other current assets	1,542	3,106
Other long-term assets, net	457	(189)
Accounts payable	(1,310)	(28,023)
Accrued liabilities	338	(6,962)
Deferred revenue	12,547	(10,640)
Operating lease liabilities	(1,751)	(1,249)
Other long-term liabilities	(171)	27
Net cash used in operating activities	(12,227)	(51,429)
Cash flows from investing activities:
Purchase of equity securities	(85)	(2,500)
Proceeds from sale of equity securities and marketable securities	2,179	5,535
Disbursement for notes receivable	(300)	(2,000)
Acquisitions of businesses, net of cash acquired	0	4,885
Expenditures for property and equipment	(3,638)	(4,144)
Cash Divested from Deconsolidation	(4,056)	0
Other investing activities, net	(99)	(2)
Net cash (used in) provided by investing activities	(5,999)	1,774
Cash flows from financing activities:
Proceeds from long-term debt	47,500	0
Proceeds from sale of common stock, net of offering costs	2,848	30,957
Payments of taxes withheld upon vesting of restricted stock	(1,686)	(1,353)
Other financing activities, net	(1,413)	(648)
Net cash provided by financing activities	47,249	28,956
Net increase (decrease) in cash, cash equivalents and restricted cash	29,023	(20,699)
Cash, cash equivalents and restricted cash, beginning of period	114,898	142,814
Cash, cash equivalents and restricted cash, end of period	143,921	122,115
Cash paid during the period:
Interest paid, net of amounts capitalized	32	86
Income taxes paid, net	4	130
Non-cash investing and financing activities:
Property and equipment financed through accounts payable and accrued liabilities	190	304
Common stock repurchased through business combination	0	643
Receivables converted to equity securities	186	359
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	41	7,961
Proceeds from sale of common stock included in accounts receivable	0	8,957
Sale of marketable securities included in accounts receivable	3,081	0
Deposit applied to business combination purchase price	0	7,347
Equity method security applied to business combination purchase price	0	3,707
Recognition of right-of-use assets upon adoption of ASC 842	0	30,968
Recognition Of Finance Lease, Right-Of-Use Asset	$ 517	$ 0