Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 205,969	$ 19,298
Less: Income from discontinued operations, net of tax	28,149	11,073
Net income from continuing operations	177,820	8,225
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	130,639	132,767
Amortization of debt issuance costs	3,710	3,836
Amortization of operating lease assets	11,067	11,675
Impairment loss	1,228	47,834
Provision for bad debt and claim losses	14,020	10,998
Share-based compensation	33,898	26,018
Equity in earnings of affiliates, net of taxes	(1,859)	(498)
Gain on sale of property and equipment	1,360	(3)
Loss on early extinguishment of debt	0	1,453
Deferred income tax	56	(10,642)
Impairment loss on investment in affiliates	0	1,511
Gain on investments and other, net	(37,154)	(847)
Tax indemnification release	0	13,394
Accounts receivable	(33,159)	(23,218)
Prepaid expenses and other current assets	(2,104)	(7,201)
Accounts payable and other accrued expenses	54,847	(19,894)
Contract liabilities	102,302	19,899
Income taxes	(32,815)	31,239
Dividends received from investments in affiliates	109	0
Other assets and other liabilities	(45,550)	(29,122)
Net cash provided by operating activities - continuing operations	378,415	217,424
Net cash provided by operating activities - discontinued operations	40,687	29,669
Total cash provided by operating activities	419,102	247,093
Cash flows from investing activities:
Purchases of property and equipment	(40,187)	(52,807)
Purchases of capitalized data and other intangible assets	(28,717)	(25,845)
Cash paid for acquisitions, net of cash acquired	(12,045)	(13,280)
Purchases of investments	(1,315)	(658)
Cash received from sale of business-lines	0	4,109
Proceeds from sale of property and equipment	0	3
Proceeds from investments and other	48,035	5,591
Net cash used in investing activities - continuing operations	(34,229)	(82,887)
Net cash used in investing activities - discontinued operations	(9,259)	(13,987)
Total cash used in investing activities	(43,488)	(96,874)
Cash flows from financing activities:
Proceeds from long-term debt	0	1,770,000
Debt issuance costs	0	(9,621)
Repayment of long-term debt	(102,461)	(1,844,155)
Proceeds from issuance of shares in connection with share-based compensation	8,487	8,391
Payment of tax withholdings related to net share settlements	(9,816)	(9,645)
Shares repurchased and retired	(9,273)	(61,607)
Dividends paid	(61,062)	0
Contingent consideration payments subsequent to acquisitions	0	(600)
Net cash used in financing activities - continuing operations	(174,125)	(147,237)
Net cash used in financing activities - discontinued operations	(6)	(12)
Total cash used in financing activities	(174,131)	(147,249)
Effect of exchange rate on cash, cash equivalents, and restricted cash	(2,042)	637
Net change in cash, cash equivalents, and restricted cash	199,441	3,607
Cash, cash equivalents, and restricted cash at beginning of period	114,679	94,679
Less: Change in cash, cash equivalents, and restricted cash - discontinued operations	31,422	15,670
Plus: Cash swept from discontinued operations	30,135	17,697
Cash, cash equivalents, and restricted cash at end of period	312,833	100,313
Supplemental disclosures of cash flow information:
Cash paid for interest	48,419	53,202
Cash paid for income taxes	59,538	11,558
Cash refunds from income taxes	449	16,812
Non-cash investing activities:
Capital expenditures included in accounts payable and other accrued expenses	$ 10,695	$ 10,322