Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 57,073	$ 31,923
Marketable securities	17,224	61,836
Accounts receivable, net	165,156	53,862
Inventory	21,303	18,283
Other current assets	21,463	12,010
Total current assets	282,219	177,914
Property and equipment, net	24,780	11,741
Intangible assets, net	244,414	30,197
Goodwill	335,716	49,393
Investments	9,031	32,371
Deferred income taxes	8,434	1,542
Other assets	6,289	4,901
Total assets	910,883	308,059
Current liabilities:
Revolving credit facility	20,000	0
Accounts payable	45,851	6,525
Accrued expenses and other	76,380	27,040
Deferred revenue	100,571	43,504
Total current liabilities	242,802	77,069
Long-term debt, related party	22,500	0
Deferred revenue, net of current	14,184	7,188
Deferred income taxes	2,787	3,047
Other long-term liabilities	13,189	1,633
Total liabilities	295,462	88,937
Commitments and contingencies (Note 22)
Stockholders' equity:
Preferred stock, $0.01 par value; 10,000,000 shares authorized at December 31, 2017; 5,000,000 shares authorized at December 31, 2016; none issued and outstanding	0	0
Common stock, 240,000,000 shares authorized, $0.0001 par value, 101,752,856 shares issued and outstanding at December 31, 2017; 120,000,000 shares authorized, $0.001 par value, 49,041,881 shares issued and outstanding at December 31, 2016	10	49
Additional paid-in capital	1,684,768	1,250,744
Accumulated deficit	(1,072,426)	(1,037,174)
Accumulated other comprehensive income	3,069	5,503
Total stockholders' equity	615,421	219,122
Total liabilities and stockholders' equity	$ 910,883	$ 308,059