Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 15,438	$ 27,480
Less: Loss from discontinued operations, net of tax	2,417	(58)
Net income from continuing operations	12,708	27,538
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	43,472	39,644
Amortization of debt issuance costs	1,440	1,485
Provision for bad debt and claim losses	3,758	2,895
Share-based compensation	12,167	9,543
Excess tax benefit related to stock options	0	(1,265)
Equity in losses of affiliates, net of taxes	723	90
Gain on sale of property and equipment	(3)	(8)
Deferred income tax	8,911	5,143
Gain/(loss) on Investments and other, net	(935)	521
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	10,952	(4,767)
Prepaid expenses and other current assets	4,952	(1,332)
Accounts payable and accrued expenses	(11,267)	(15,992)
Deferred revenue	15,447	8,491
Income taxes	(2,293)	9,736
Dividends received from investments in affiliates	0	5,183
Other assets and other liabilities	(4,354)	(205)
Net cash provided by operating activities - continuing operations	95,678	86,700
Net cash (used in)/provided by operating activities - discontinued operations	(25)	27
Total cash provided by operating activities	95,653	86,727
Cash flows from investing activities:
Purchase of subsidiary shares from noncontrolling interests	0	(18,023)
Purchases of property and equipment	(8,671)	(9,810)
Purchases of capitalized data and other intangible assets	(8,441)	(9,021)
Purchases of investments	0	(440)
Proceeds from sale of property and equipment	3	8
Change in restricted cash	520	(117)
Net cash used in investing activities - continuing operations	(16,589)	(37,403)
Net cash provided by investing activities - discontinued operations	0	0
Total cash used in investing activities	(16,589)	(37,403)
Cash flows from financing activities:
Repayment of long-term debt	(17,641)	(15,830)
Proceeds from issuance of shares in connection with share-based compensation	2,390	6,296
Payment of tax withholdings related to net share settlements	(12,262)	(7,178)
Shares repurchased and retired	(19,837)	0
Excess tax benefit related to stock options	0	1,265
Net cash used in financing activities - continuing operations	(47,350)	(15,447)
Net cash provided by financing activities - discontinued operations	0	0
Total cash used in financing activities	(47,350)	(15,447)
Effect of exchange rate on cash	(814)	137
Net change in cash and cash equivalents	30,900	34,014
Cash and cash equivalents at beginning of period	72,031	99,090
Less: Change in cash and cash equivalents - discontinued operations	(25)	27
Plus: Cash swept to discontinued operations	(24)	27
Cash and cash equivalents at end of period	102,932	133,104
Supplemental disclosures of cash flow information:
Cash paid for interest	11,768	6,272
Cash paid for income taxes	1,526	992
Cash refunds from income taxes	304	275
Non-cash investing activities:
Capital expenditures included in accounts payable and accrued liabilities	$ 4,842	$ 8,584