UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ 27,110	$ (21,231)
Adjustments to reconcile net (loss) income to net cash provided by operations
Depreciation and amortization	56,598	61,193
Deferred income taxes	4,885	(13,349)
Stock-based compensation	17,424	27,236
Impairments of long-lived assets	805	2,940
Provision for bad debts	1,016	604
Amortization of financing fees	327	362
Amortization of debt discount	1,444	1,741
Deferred rent	(170)	(1,334)
Unrealized translation gain on investment in foreign subsidiaries	(1,838)	(100)
Changes in fair value of derivatives	(4,102)	(5,024)
Excess payment on contingent consideration for acquisition	0	(1,159)
Changes in operating assets and liabilities
Accounts receivable	(33,145)	(40,383)
Insurance receivable	0	750
Prepaid expenses	3,579	(1,421)
Other assets	(2,097)	1,464
Accounts payable	6,546	12,116
Litigation settlement obligation	0	(750)
Accrued expenses	84	15,609
Other liabilities	(4,868)	(338)
Net cash provided by operating activities	73,598	38,926
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(3,978)	(2,619)
Purchases of intangible assets and capitalized software	(11,719)	(11,987)
Proceeds from disposition of property and equipment	25	7
Net cash used in investing activities	(15,672)	(14,599)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of common stock	2,291	2,483
Proceeds from issuance of common stock in IPO, net of underwriting discounts and commissions	0	102,638
Payments of IPO issuance costs	(225)	(6,120)
Capital contribution from certain stockholders	0	15,576
Payments of long-term debt	(4,846)	(11,531)
Payment of contingent consideration for acquisition	(226)	(738)
Payments of finance lease obligations	(3)	(8)
Net cash provided by (used in) financing activities	(3,009)	102,300
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(3,725)	(863)
NET CHANGE IN CASH AND CASH EQUIVALENTS	51,192	125,764
Beginning of period	47,998	66,633
Cash and cash equivalents at end of period	99,190	192,397
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest, net of capitalized amounts of $220 and $245 for the nine months ended September 30, 2021 and 2022, respectively	24,277	21,494
Income taxes	11,513	4,663
Offering costs included in accounts payable and accrued liabilities	0	1,996
Noncash investing activities
Purchases of property and equipment in accounts payable and accrued expenses	$ 8	$ 35