CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net (loss) income	$ (201,326,000)	$ 25,876,000	$ 11,156,000
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Depreciation and amortization	35,073,000	22,860,000	17,486,000
Unrealized loss (gain) on foreign currency	5,389,000	1,824,000	(2,623,000)
Stock based compensation	21,605,000	23,565,000	1,189,000
Change in fair value of warrants	(4,543,000)	(4,740,000)	0
Change in fair value of derivative liability	(4,695,000)	(26,745,000)	0
Issuance costs allocated to derivative liability	0	1,424,000	0
Amortization of debt discount and deferred issuance costs	5,375,000	326,000	0
Deferred income tax	(1,594,000)	(28,087,000)	112,000
Loss on disposition of subsidiaries	0	1,234,000	711,000
(Gain) loss on disposition of assets	(500,000)	220,000	254,000
Loss on extinguishment of debt	0	0	600,000
Unrealized gain on investment	(1,260,000)	0	(500,000)
Provision for doubtful accounts	785,000	(161,000)	322,000
Impairment expense	104,500,000	0	0
Noncash lease expense	19,870,000	0	0
Changes in operating assets and liabilities:
Accounts receivable	23,941,000	(12,951,000)	(7,086,000)
Prepaid expenses and other current assets and prepaid expenses and other assets	2,540,000	2,361,000	2,537,000
Accounts payable	11,582,000	3,546,000	(1,521,000)
Deferred rent	0	(4,456,000)	397,000
Accrued compensation	(5,663,000)	2,307,000	1,429,000
Accrued expenses, other current liabilities and other liabilities	(2,841,000)	(1,847,000)	2,086,000
Lease liabilities	(23,249,000)	0	0
Deferred revenue	7,154,000	(5,759,000)	1,004,000
Cash (used in) provided by operating activities	(7,857,000)	797,000	27,553,000
Investing activities:
Business acquisitions, net of cash acquired	0	(189,885,000)	0
Capital expenditures	(5,424,000)	(4,983,000)	(4,708,000)
Capitalization of internal-use software	(12,361,000)	(11,039,000)	(9,830,000)
Proceeds from Sales of Assets, Investing Activities	500,000	0	0
Cash of disposed subsidiaries, less proceeds on disposition	0	(2,121,000)	(265,000)
Cash used in investing activities	(17,285,000)	(208,028,000)	(14,803,000)
Financing activities:
Proceeds from reverse recapitalization, net of costs	0	(11,652,000)	0
Proceeds from issuance of common stock	0	35,000,000	0
Payment for shares withheld for employee taxes	(1,698,000)	0	0
Deferred reverse recapitalization costs	(585,000)	0	0
Proceeds from issuance of convertible notes, net of issuance costs	0	143,806,000	0
Proceeds from exercise of stock options	459,000	6,975,000	159,000
Borrowings from revolving credit facility	5,000,000	9,000,000	19,896,000
Payments on revolving credit facility	0	(1,306,000)	0
Borrowings from secured borrowing facility	0	0	217,382,000
Repayments on secured borrowing facility	0	0	(217,982,000)
Cash provided by financing activities	3,176,000	181,823,000	19,455,000
Effect of currency translation on cash and cash equivalents	(1,993,000)	(985,000)	(103,000)
Net (decrease) increase in cash, cash equivalents and restricted cash	(23,959,000)	(26,393,000)	32,102,000
Cash and cash equivalents and restricted cash at beginning of period	79,733,000	106,126,000	74,024,000
Cash and cash equivalents and restricted cash at end of period	$ 55,774,000	$ 79,733,000	$ 106,126,000