CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities attributable to continuing operations:
Net earnings	$ 409,230us-gaap_ProfitLoss	$ 283,725us-gaap_ProfitLoss	$ 160,796us-gaap_ProfitLoss
Less: earnings (loss) from discontinued operations, net of tax	174,673	1,926	(9,051)
Earnings from continuing operations	234,557	281,799	169,847
Adjustments to reconcile earnings from continuing operations to net cash provided by operating activities attributable to continuing operations:
Non-cash compensation expense	59,634	53,005	85,625
Depreciation	61,156us-gaap_Depreciation	58,909us-gaap_Depreciation	52,481us-gaap_Depreciation
Amortization of intangibles	57,926us-gaap_AmortizationOfIntangibleAssets	59,843us-gaap_AmortizationOfIntangibleAssets	35,771us-gaap_AmortizationOfIntangibleAssets
Excess Tax Benefit from Share-based Compensation	(44,957)	(32,891)	(57,101)
Deferred income taxes	76,869us-gaap_DeferredIncomeTaxExpenseBenefit	(9,096)us-gaap_DeferredIncomeTaxExpenseBenefit	37,076us-gaap_DeferredIncomeTaxExpenseBenefit
Acquisition-related contingent consideration fair value adjustments	(13,367)	343	0
Impairment of long-term investments	66,601	5,268	8,685
Equity in losses of unconsolidated affiliates	9,697	6,615	25,345
Gain on sales of long-term investments, assets and a business	(21,946)	(50,608)	(3,576)
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	(19,918)	10,421	(30,991)
Other assets	(3,606)	(34,632)	(22,991)
Accounts payable and other current liabilities	5,206	(766)	(14,384)
Income taxes payable	(94,492)	49,191	47,010
Deferred revenue	30,142	(5,841)	1,864
Other, net	20,546us-gaap_OtherNoncashIncomeExpense	19,401us-gaap_OtherNoncashIncomeExpense	19,866us-gaap_OtherNoncashIncomeExpense
Net cash provided by operating activities attributable to continuing operations	424,048	410,961	354,527
Cash flows from investing activities attributable to continuing operations:
Acquisitions, net of cash acquired	(259,391)	(40,434)	(400,254)
Capital expenditures	(57,233)	(80,311)	(51,201)
Proceeds from maturities and sales of marketable debt securities	21,644	12,502	195,501
Purchases of marketable debt securities	(175,826)		(53,952)
Proceeds from sales of long-term investments, assets and a business	58,388	83,091	14,616
Purchases of long-term investments	(24,334)	(51,080)	(36,094)
Other, net	(3,042)	(3,529)	(9,923)
Net cash used in investing activities attributable to continuing operations	(439,794)	(79,761)	(341,307)
Cash flows from financing activities attributable to continuing operations:
Proceeds from issuance of long-term debt		500,000us-gaap_ProceedsFromIssuanceOfDebt	500,000us-gaap_ProceedsFromIssuanceOfDebt
Principal payments on long-term debt	0us-gaap_RepaymentsOfLongTermDebt	(15,844)us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt
Purchase of treasury stock		(264,214)	(691,830)
Dividends	(97,338)us-gaap_PaymentsOfDividendsCommonStock	(79,189)us-gaap_PaymentsOfDividendsCommonStock	(68,163)us-gaap_PaymentsOfDividendsCommonStock
Proceeds from Issuance or Sale of Equity	1,609	(5,077)	262,841
Excess tax benefits from stock-based awards	44,957	32,891	57,101
Purchase of noncontrolling Interests	(33,165)us-gaap_PaymentsToMinorityShareholders	(67,947)us-gaap_PaymentsToMinorityShareholders	(4,891)us-gaap_PaymentsToMinorityShareholders
Funds returned from (transferred to) escrow for Meetic tender offer	12,354	(71,512)	0
Acquisition-related contingent consideration payments	(8,109)	(256)	(10,781)
Debt issuance Costs	(383)us-gaap_PaymentsOfDebtIssuanceCosts	(7,399)us-gaap_PaymentsOfDebtIssuanceCosts	(11,001)us-gaap_PaymentsOfDebtIssuanceCosts
Other, net	(905)	(3,787)	244
Net cash (used in) provided by financing activities attributable to continuing operations	(80,980)	17,666	33,520
Total cash (used in) provided by continuing operations	(96,726)	348,866	46,740
Total cash used in discontinued operations	(145)	(1,877)	(3,472)
Effect of exchange rate changes on cash and cash equivalents	(13,168)	3,478	2,556
Net (decrease) increase in cash and cash equivalents	(110,039)	350,467	45,824
Cash and cash equivalents at beginning of period	1,100,444	749,977	704,153
Cash and cash equivalents at end of period	$ 990,405	$ 1,100,444	$ 749,977

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Gain on Sales of Long-term Investments, Assets and a Business

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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