CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating activities:
Net (loss) income	$ (89,322)	$ (201,326)	$ 25,876
Less: net loss (income) from discontinued operations, net of tax	28,990	60,843	(22,006)
Net (loss) income from continuing operations	(60,332)	(140,483)	3,870
Adjustments to reconcile net (loss) income from continuing operations to net cash (used in) provided by operating activities:
Depreciation and amortization	21,941	24,263	22,093
Unrealized (gain) loss on foreign currency	(1,088)	5,389	1,824
Stock based compensation	5,579	19,169	23,565
Change in fair value of warrants	11	(4,543)	(4,740)
Change in fair value of derivative liability	(180)	(4,695)	(26,745)
Issuance costs allocated to derivative liability	0	0	1,424
Amortization of debt discount and deferred issuance costs	4,945	4,268	259
Deferred income tax	3,236	(1,594)	(28,087)
Loss on disposition of subsidiaries	0	0	1,234
(Gain) loss on disposition of assets	(175)	(500)	220
Loss (gain) on investment	3,500	(1,260)	0
Provision for doubtful accounts	(581)	785	(161)
Impairment expense	0	66,464	0
Noncash lease expense	20,017	19,870	0
Changes in operating assets and liabilities:
Accounts receivable	40,737	23,941	(12,951)
Prepaid expenses and other current assets and prepaid expenses and other assets	4,795	2,540	2,361
Accounts payable	19,258	11,582	3,546
Deferred rent	0	0	(4,456)
Accrued compensation	(18,088)	(5,663)	2,307
Accrued expenses, other current liabilities and other liabilities	(12,619)	(2,841)	(1,847)
Lease liabilities	(23,421)	(23,249)	0
Deferred revenue	(6,946)	7,154	(5,759)
Cash provided by (used in) operating activities from continuing operations	589	597	(22,043)
Net cash (used in) provided by operating activities from discontinued operations	(6,692)	(8,454)	22,840
Net cash flow (used in) provided by operating activities	(6,103)	(7,857)	797
Investing activities:
Business acquisitions, net of cash acquired	0	0	(189,885)
Capital expenditures	(964)	(5,424)	(4,983)
Capitalization of internal-use software	(13,934)	(12,361)	(11,039)
Proceeds from sale of asset	175	500	0
Cash of disposed subsidiaries, less proceeds on disposition	0	0	(2,121)
Cash used in investing activities from continuing operations	(14,723)	(17,285)	(208,028)
Cash (used in) provided by investing activities from discontinued operations	0	0	0
Cash used in investing activities	(14,723)	(17,285)	(208,028)
Financing activities:
Proceeds from reverse recapitalization, net of costs	0	0	(11,652)
Proceeds from issuance of common stock	0	0	35,000
Payment for shares withheld for employee taxes	(451)	(1,698)	0
Deferred reverse recapitalization costs	0	(585)	0
Proceeds from issuance of convertible notes, net of issuance costs	0	0	143,806
Proceeds from exercise of stock options	29	459	6,975
Proceeds from the issuance of common stock in connection with the at-the-market offering, net of issuance costs	902	0	0
Borrowings on Revolving Credit Facility	2,128	5,000	9,000
Payments on Revolving Credit Facility	(1,796)	0	(1,306)
Cash provided by financing activities	812	3,176	181,823
Effect of currency translation on cash and cash equivalents	(123)	(1,993)	(985)
Net decrease in cash and cash equivalents	(20,137)	(23,959)	(26,393)
Cash and cash equivalents and restricted cash at beginning of period	55,774	79,733	106,126
Cash and cash equivalents and restricted cash at end of period	$ 35,637	$ 55,774	$ 79,733