Consolidated balance sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 199,230	$ 39,213
Accounts receivable, net	73,793	86,635
Inventory, net	1,786	1,980
Income tax receivable	7,260	6,054
Prepaid expenses and other current assets	13,290	10,006
Total current assets	295,359	143,888
Property and equipment, net	30,112	31,446
Goodwill	63,263	62,706
Other intangible assets, net	24,846	24,461
Deferred tax assets	8,113	8,351
Other long-term assets	16,077	17,019
TOTAL ASSETS	437,770	287,871
CURRENT LIABILITIES:
Current portion of long-term debt	390	232
Accounts payable	5,957	4,880
Accrued compensation and benefits	26,393	26,560
Obligations for acquisition of businesses	9,842	13,925
Other accrued expenses and current liabilities	20,443	21,744
Deferred revenue	147,261	130,122
Total current liabilities	210,286	197,463
Long-term debt, net of current portion	690	178
Deferred revenue, non-current	9,256	9,640
Other long-term liabilities	13,474	17,647
TOTAL LIABILITIES	233,706	224,928
Commitments and contingencies
MEZZANINE EQUITY	2,352	2,352
STOCKHOLDERS’ EQUITY:
Preferred stock ($0.0001 par value), authorized 45,000 shares, none issued and outstanding
Additional paid-in capital	369,579	232,156
Accumulated deficit	(161,066)	(166,499)
Accumulated other comprehensive loss	(6,808)	(5,072)
TOTAL STOCKHOLDERS’ EQUITY	201,712	60,591
TOTAL LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY	437,770	287,871
Class A Common Stock [Member]
STOCKHOLDERS’ EQUITY:
Common stock	4	2
Class B Common Stock [Member]
STOCKHOLDERS’ EQUITY:
Common stock	$ 3	$ 4