Condensed Consolidated Balance Sheets (Current Period Unaudited) $ in Thousands, in Millions	Sep. 30, 2021 USD ($)		Dec. 31, 2020 USD ($)
Assets
Cash and cash equivalents	$ 260,704		$ 69,112
Short-term investments	1,614		992
Accounts receivable, net of allowance of $878 and $1,767 at September 30, 2021 and December 31, 2020, respectively	54,226		48,250
Prepaid expenses and other current assets	13,086		2,343
Total current assets	329,630		120,697
Property and equipment, net	3,252		2,663
Deferred contract costs	35,267		31,943
Long-term unbilled receivables	6,104		5,499
Other assets	5,911		8,252
Total assets	380,164		169,054
Liabilities, mezzanine equity, and stockholders’ deficiency
Accounts payable	2,265		774
Accrued expenses and other liabilities	25,782		26,245
Current portion of deferred revenue	71,251		65,203
Total current liabilities	99,298		92,222
Long-term portion of deferred revenue	6,875		9,485
Share-based awards classified as liabilities	0		43,502
Earn-out liabilities	17,125		0
Warrant liabilities	795		0
Other non-current liabilities	3,947		3,658
Total liabilities	128,040		148,867
Commitments and contingencies (Note 10)
Mezzanine equity
Redeemable noncontrolling interest	4,631		3,061
Total mezzanine equity	4,631		213,014
Common stock, $0.0001 par value; 1,000,000 and 243,360 shares authorized, 181,013 and 100,068 shares issued and outstanding, at September 30, 2021 and December 31, 2020, respectively	18		12
Additional paid-in capital	614,569		105,159
Treasury stock	(1,739)		0
Accumulated other comprehensive income	1,892		1,791
Accumulated deficit	(367,247)		(299,789)
Total stockholders’ deficiency	247,493	[1]	(192,827)
Total liabilities, mezzanine equity, and stockholders’ deficiency	380,164		169,054
Redeemable Convertible Preferred Stock [Member]
Mezzanine equity
Temporary Equity, Carrying Amount, Attributable to Parent	0		183,390
Redeemable Common Shares [Member]
Mezzanine equity
Temporary Equity, Carrying Amount, Attributable to Parent	0		25,074
Share-based Awards [Member]
Mezzanine equity
Temporary Equity, Carrying Amount, Attributable to Parent	$ 0		$ 1,489

[1] As part of the Business Combination (as disclosed in "Note 3 — Business Combination"), all per share information has been retroactively adjusted using an exchange ratio of 8.69144 per share.