CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities attributable to continuing operations:
Net loss	$ (40,311)	$ (127,982)	$ (70,494)
Less: Loss from discontinued operations, net of tax	(10,264)	(38,814)	(6,476)
Net loss attributable to continuing operations	(30,047)	(89,168)	(64,018)
Adjustments to reconcile net loss to net cash provided by operating activities attributable to continuing operations:
Depreciation	93,604	77,523	59,025
Provision for credit losses	79,385	104,261	86,594
Stock-based compensation expense	43,414	50,802	28,171
Non-cash lease expense (including impairment of right-of-use assets)	11,878	13,799	20,484
Amortization of intangibles	7,958	13,774	16,097
Deferred income taxes	(10,009)	(9,758)	(34,217)
Foreign currency transaction (gain) loss	(1,291)	3,357	1,679
Other adjustments, net	232	(811)	8,262
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable	(58,168)	(111,865)	(106,966)
Other assets	(13,852)	(658)	5,600
Accounts payable and other liabilities	(8,045)	11,632	21,737
Operating lease liabilities	(20,678)	(16,733)	(16,644)
Income taxes payable and receivable	158	3,213	263
Deferred revenue	(355)	(2,966)	(1,491)
Net cash provided by operating activities attributable to continuing operations	94,184	46,402	24,576
Cash flows from investing activities attributable to continuing operations:
Capital expenditures	(47,780)	(115,479)	(69,909)
Purchases of marketable debt securities	(12,362)	0	0
Proceeds from maturities of marketable debt securities	12,500	0	50,000
Net proceeds from the sale of a business	1,000	0	750
Proceeds from sales of fixed assets	85	162	0
Other	0	0	(253)
Net cash used in investing activities attributable to continuing operations	(46,557)	(115,317)	(19,412)
Cash flows from financing activities attributable to continuing operations:
Principal payments on Term Loan	0	0	(220,000)
Purchases of treasury stock	(10,932)	(8,144)	(35,403)
Withholding taxes paid on behalf of employees on net settled stock-based awards	(5,994)	(8,827)	(61,908)
Purchase of noncontrolling interests	0	0	(27,857)
Other, net	(57)	(256)	0
Net cash used in financing activities attributable to continuing operations	(16,983)	(17,227)	(345,168)
Total cash provided by (used in) continuing operations	30,644	(86,142)	(340,004)
Net cash provided by (used in) operating activities attributable to discontinued operations	10,661	(19,333)	(18,367)
Net cash provided by (used in) investing activities attributable to discontinued operations	325	(769)	(25,660)
Total cash provided by (used in) discontinued operations	10,986	(20,102)	(44,027)
Effect of exchange rate changes on cash and cash equivalents and restricted cash	535	(1,105)	(45)
Net increase (decrease) in cash and cash equivalents and restricted cash	42,165	(107,349)	(384,076)
Cash and cash equivalents and restricted cash at beginning of period	322,136	429,485	813,561
Cash and cash equivalents and restricted cash at end of period	$ 364,301	$ 322,136	$ 429,485