Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 1,687	$ 28,287
Less: Loss from discontinued operations, net of tax	(46)	(75)
Net income from continuing operations	1,733	28,362
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	49,219	46,140
Amortization of debt issuance costs	1,302	1,376
Amortization of operating lease assets	4,036	0
Provision for bad debt and claim losses	3,788	2,847
Share-based compensation	9,892	8,677
Equity in losses/(earnings) of affiliates, net of taxes	422	(233)
Deferred income tax	4,346	6,250
Gain on investment and other, net	(734)	(161)
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	(5,489)	12,745
Prepaid expenses and other current assets	(2,778)	(764)
Accounts payable and other accrued expenses	(7,665)	4,987
Contract liabilities	173	(2,756)
Income taxes	10,966	(482)
Dividends received from investments in affiliates	0	776
Other assets and other liabilities	(4,630)	(7,556)
Net cash provided by operating activities - continuing operations	64,581	100,208
Net cash provided by operating activities - discontinued operations	0	2
Total cash provided by operating activities	64,581	100,210
Cash flows from investing activities:
Purchases of property and equipment	(24,020)	(9,940)
Purchases of capitalized data and other intangible assets	(8,947)	(9,544)
Cash paid for acquisitions, net of cash acquired		(20,533)
Cash received from sale of business-line	1,082	0
Proceeds from sale of property and equipment	0	100
Proceeds from investments	1,157	980
Net cash used in investing activities - continuing operations	(30,728)	(38,937)
Net cash provided by investing activities - discontinued operations	0	0
Total cash used in investing activities	(30,728)	(38,937)
Cash flows from financing activities:
Proceeds from long-term debt	0	95
Repayment of long-term debt	(25,563)	(45,722)
Proceeds from issuance of shares in connection with share-based compensation	2,758	15,473
Payment of tax withholdings related to net share settlements	(8,551)	(10,532)
Shares repurchased and retired	0	(18,479)
Contingent consideration payments subsequent to acquisitions	(600)	0
Net cash used in financing activities - continuing operations	(31,956)	(59,165)
Net cash provided by financing activities - discontinued operations	0	0
Total cash used in financing activities	(31,956)	(59,165)
Effect of exchange rate on cash, cash equivalents and restricted cash	(200)	311
Net change in cash, cash equivalents and restricted cash	1,697	2,419
Cash, cash equivalents and restricted cash at beginning of period	98,250	132,154
Less: Change in cash, cash equivalents and restricted cash - discontinued operations	0	2
Plus: Cash swept from discontinued operations	0	2
Cash, cash equivalents and restricted cash at end of period	99,947	134,573
Supplemental disclosures of cash flow information:
Cash paid for interest	17,351	15,553
Cash paid for income taxes	1,958	988
Cash refunds from income taxes	15,950	2,917
Non-cash investing activities:
Capital expenditures included in accounts payable and other accrued expenses	$ 14,469	$ 6,267