CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets :
Cash and cash equivalents	$ 543,249	$ 565,994
Marketable Securities	21,081	13,765
Trade receivables (net of allowance of $3,528 and $3,724)	228,133	222,753
Finance receivables (net of allowance of $704 and $636)	63,291	44,278
Other current assets	16,792	10,623
Total current assets	872,546	857,413
Property and equipment (net of accumulated depreciation of $5,200 and $4,636)	5,579	4,916
Goodwill	97,388	78,839
Acquired intangible assets (net of amortization of $8,299 and $7,070)	16,901	18,130
Internal-use software costs (net of amortization of $4,270 and $3,837)	21,571	17,844
Operating lease right-of-use assets	2,955	3,264
Other assets	2,404	2,554
Total assets	1,019,344	982,960
Current Liabilities :
Accounts payable	389,232	395,972
Accrued payroll	11,310	11,961
Accrued other liabilities	14,878	9,806
Deferred revenue	5,331	4,317
Operating lease liabilities	1,393	1,306
Total current liabilities	422,144	423,362
Long-term operating lease liabilities	1,702	2,049
Long-term debt	60,500	500
Other long-term liabilities	1,376	952
Total liabilities	485,722	426,863
Commitments and Contingencies (Note 5)
Stockholders' Equity :
Preferred Stock; $0.001 par value; 20,000,000 and 20,000,000 shares authorized; 0 and 0 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively
Additional paid-in capital	808,203	801,142
Accumulated deficit	(274,656)	(245,161)
Accumulated other comprehensive loss	(82)	(40)
Total stockholders' equity	533,622	556,097
Total liabilities and stockholders' equity	1,019,344	982,960
Common Class A [Member]
Stockholders' Equity :
Common stock	111	106
Common Class B [Member]
Stockholders' Equity :
Common stock	$ 46	$ 50