CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Cash Flows [Abstract]
Net income (loss)	$ 230,742	$ 70,587	$ (3,304)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	135,864	135,754	127,021
Share-based compensation	44,100	36,540	21,951
Unrealized foreign exchange loss (gain), net	28,175	10,866	3,756
Non-cash impairment of goodwill and acquired intangible assets			106,602
Deferred income taxes	7,885	(2,255)	(23,946)
Accretion of convertible debt discount and amortization of debt issuance costs	3,741	20,239	18,924
Changes in working capital, net of amounts acquired:
Income taxes payable, net	10,805	23,912	(16,823)
Trade accounts receivable	(299,409)	(107,478)	63,629
Prepaid expenses and other current assets	(192,591)	93,475	(168,256)
Trade accounts payable	178,052	(33,218)	88,687
Deferred revenue	(8,389)	7,472	10,945
Accrued expenses and other current liabilities	608,252	93,040	118,618
Changes in non-current assets and liabilities	1,063	57,642	(94,299)
Net cash provided by operating activities	748,290	406,576	253,505
Cash flows from investing activities:
Acquisitions, net of cash acquired	(342,951)		(1,100)
Purchases of property and equipment	(104,257)	(92,207)	(97,628)
Purchases of other long-term assets	(7,728)	(7,752)	(7,770)
Other, net	1,160	1,850	967
Net cash used in investing activities	(453,776)	(98,109)	(105,531)
Cash flows from financing activities:
Proceeds from issuance of shares	9,081	10,848	18,101
Repurchase of shares	(175,965)	(229,877)	(241,518)
Borrowings from revolving credit agreements	7,904,600	5,074,000	3,113,800
Repayments of revolving credit agreements	(7,733,200)	(5,061,000)	(2,843,400)
Net borrowings (repayments) from short-term debt obligations	1,193	52	(5,157)
Debt issuance costs	(3,014)
Other, net	(3,849)	(6,259)	(6,428)
Net cash (used in) provided by financing activities	(1,154)	(212,236)	35,398
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(388,602)	(109,637)	98,757
(Decrease) increase in cash and cash equivalents and restricted cash	(95,242)	(13,406)	282,129
Cash and cash equivalents and restricted cash at beginning of period	2,086,102	2,099,508	1,817,379
Cash and cash equivalents and restricted cash at end of period	1,990,860	2,086,102	2,099,508
Supplemental Cash Flow Disclosures:
Interest paid during the period	29,067	18,503	17,319
Income taxes paid during the period	$ 86,208	$ 48,688	$ 60,170