Condensed Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024		Dec. 31, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 154,704		$ 131,732
Accounts receivable, net of allowance of $3,934 and $3,564 as of June 30, 2024 and December 31, 2023, respectively	182,801		170,131
Prepaid expenses	8,603		6,269
Other current assets	1,461		1,622
Total current assets	347,569		309,754
Non-current assets:
Property and equipment, net	7,529		7,452
Website and software development costs, net	29,936		32,124
Right-to-use assets - operating leases, net	6,770		6,603
Intangible assets, net	44,838		48,781
Goodwill	140,903		140,905
Deferred tax assets, net	794		728
Other non-current assets	5,525		4,367
Total non-current assets	236,295		240,960
Total assets	583,864		550,714
Current liabilities:
Accounts payable	46,533		63,572
Accrued expenses	108,168		85,455
Acquisition-related liabilities	11,414		17,234
Deferred revenue	3,683		3,301
Other current liabilities	6,153		6,823
Total current liabilities	175,951		176,385
Non-current liabilities:
Long term borrowings	184,351		184,147
Acquisition-related liabilities			3,060
Other non-current liabilities	6,516		6,602
Total non-current liabilities	190,867		193,809
Total liabilities	366,818		370,194
Commitments and contingencies (Note 8)
Stockholders' equity:
Additional paid-in capital	1,245,005		1,140,849
Accumulated deficit	(1,026,169)		(958,537)
Accumulated other comprehensive loss	(2,009)		(2,010)
Total stockholders' equity	217,046	[1]	180,520	[2]	$ 128,030	[3]
Total liabilities and stockholders' equity	583,864		550,714
Common Class A [Member]
Stockholders' equity:
Common stock value	192		189
Common Class B [Member]
Stockholders' equity:
Common stock value	$ 27		$ 29

[1] Includes 164,510,430 outstanding Class A common stock, 17,607,759 outstanding Class B common stock, 27,421,503 unvested Class A restricted stock and 9,543,347 unvested Class B restricted stock

[2] Includes 150,989,571 outstanding Class A common stock, 17,886,352 outstanding Class B common stock, 37,641,861 unvested Class A restricted stock and 11,169,137 unvested Class B restricted stock.

[3] Includes 132,909,894 outstanding Class A common stock, 15,512,217 outstanding Class B common stock, 42,357,023 unvested Class A restricted stock and 16,587,085 unvested Class B restricted stock.