Consolidated balance sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents	$ 251,828	$ 35,345
Accounts receivable, net	85,758	96,803
Income tax receivable	8,515	4,431
Prepaid expenses and other current assets	18,262	17,455
Total current assets	364,363	154,034
Property and equipment, net	34,050	30,153
Operating lease right of use assets	28,878
Goodwill	212,087	210,532
Other intangible assets, net	64,874	69,836
Deferred tax assets	5,901	5,354
Other long-term assets	19,567	17,288
TOTAL ASSETS	729,720	487,197
CURRENT LIABILITIES:
Current portion of long-term debt	472	331
Accounts payable	6,462	8,357
Accrued compensation and benefits	29,155	31,740
Current portion of operating lease liabilities	9,412
Other accrued expenses and current liabilities	27,979	27,039
Deferred revenue	67,587	59,765
Total current liabilities	141,067	127,232
Long-term debt, net of current portion	173,157	31,417
Operating lease liabilities, net of current portion	20,722
Deferred revenue, non-current	6,219	6,754
Other long-term liabilities	26,362	25,756
TOTAL LIABILITIES	367,527	191,159
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	433,902	379,832
Accumulated deficit	(64,964)	(74,863)
Accumulated other comprehensive loss	(9,104)	(11,290)
TOTAL STOCKHOLDERS’ EQUITY	359,841	293,686
TOTAL LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS’ EQUITY	729,720	487,197
Class A Common Stock [Member]
STOCKHOLDERS’ EQUITY:
Common stock	4	4
Class B Common Stock [Member]
STOCKHOLDERS’ EQUITY:
Common stock	$ 3	$ 3