Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 391,781	$ 521,846
Accounts receivable, net of allowances of $9,239 and $6,338 as of December 31, 2022 and 2021, respectively	86,537	93,804
Prepaid expenses and other current assets	24,164	20,626
Assets held for sale (Note 20)	30,984	0
Total current assets	533,466	636,276
Operating lease right-of-use assets (Note 10)	1,604	1,977
Property and equipment, net (Note 6)	126,499	124,726
Contract acquisition costs	43,804	40,675
Intangible assets, net (Note 5)	78,103	85,554
Goodwill (Note 5)	296,214	291,215
Deferred tax assets	4,423	5,034
Investment in joint venture (Note 17)	2,264	0
Other assets	2,563	1,199
Total assets	1,088,940	1,186,656
Current liabilities:
Accounts payable	25,303	16,942
Accrued expenses and other current liabilities (Note 7)	131,440	104,297
Deferred revenue (Note 2)	84,494	98,808
Operating lease liabilities (Note 10)	2,160	3,380
Liabilities associated with assets held for sale (Note 20)	10,357	0
Total current liabilities	253,754	223,427
Deferred revenue, net of current portion (Note 2)	174	54
Convertible senior notes, net (Note 8)	737,423	574,238
Operating lease liabilities, net of current portion (Note 10)	682	2,733
Deferred tax liabilities	2,550	2,049
Other liabilities	26,269	34,718
Total liabilities	1,020,852	837,219
Commitments and contingencies (Note 12)
Stockholders’ equity:
Preferred stock, $0.001 par value - 5,000,000 shares authorized; none issued	0	0
Common stock, $0.001 par value - 200,000,000 shares authorized; 78,350,984 and 74,980,546 shares issued, and 75,584,911 and 72,234,303 shares outstanding as of December 31, 2022 and 2021, respectively	78	75
Treasury stock, at cost; 2,766,073 and 2,746,243 shares as of December 31, 2022 and 2021, respectively	(3)	(3)
Additional paid-in capital	771,052	871,788
Accumulated deficit	(692,362)	(516,859)
Accumulated other comprehensive loss	(10,677)	(5,564)
Total stockholders’ equity	68,088	349,437
Total liabilities and stockholders’ equity	$ 1,088,940	$ 1,186,656