Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities
Net Income	$ 42,965	$ 21,086
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	25,026	21,488
Net pension benefit	(17,295)	(14,688)
Loss on marketable equity securities, net	14,102	0
Stock-based compensation expense, net	2,111	2,866
(Gain) loss on disposition of businesses, property, plant and equipment and investments, net	(8,739)	335
Foreign exchange gain	(177)	(1,728)
Equity in earnings of affiliates, net of distributions	(2,115)	(649)
(Benefit) provision for deferred income taxes	(7,436)	7,443
Change in operating assets and liabilities:
Accounts receivable, net	87,311	122,605
Accounts payable and accrued liabilities	(85,955)	(55,584)
Deferred revenue	(8,783)	4,603
Income taxes receivable	18,718	(6,490)
Other assets and other liabilities, net	(41,186)	(9,489)
Other	404	103
Net Cash Provided by Operating Activities	18,951	91,901
Cash Flows from Investing Activities
Proceeds from sales of marketable equity securities	49,635	0
Advance related to Kaplan University transaction	20,000	0
Net (payments) proceeds from disposition of businesses, property, plant and equipment and investments	(17,890)	1,748
Purchases of property, plant and equipment	(17,506)	(15,664)
Investments in equity affiliates, cost method and other investments	(4,552)	(865)
Investments in certain businesses, net of cash acquired	(2,619)	(85,415)
Return of investment in equity affiliate	1,402	200
Net Cash Used in Investing Activities	(11,530)	(99,996)
Cash Flows from Financing Activities
Common shares repurchased	(79,001)	(395)
Dividends paid	(7,319)	(7,102)
Proceeds from exercise of stock options	144	0
Other	(4,797)	(2,092)
Net Cash Used in Financing Activities	(90,973)	(9,589)
Effect Of Currency Exchange Rate Change	4,171	4,210
Net Decrease in Cash and Cash Equivalents and Restricted Cash	(79,381)	(13,474)
Beginning Cash and Cash Equivalents and Restricted Cash	407,566	670,816
Ending Cash and Cash Equivalents and Restricted Cash	$ 328,185	$ 657,342

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The net periodic benefit or expense for defined benefit pension plans excluding the early retirement program and special separation benefit expense, curtailment, settlement and other programs separately disclosed in the financial statements. This element includes the curtailment related to the spin-off of a business.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. Also included is the cash inflow from the sale of long-lived, physical assets and other assets.

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The cash outflow associated with the purchase of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence, cost method investments or other investments, not including marketable equity securities.

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Other cash or noncash adjustments to reconcile net income to cash provided by (used in) operating activities that are not separately disclosed in the statement of cash flows (for example, cash received or cash paid during the current period for miscellaneous operating activities, net change during the reporting period in other assets or other liabilities).

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The cash outflow to reacquire common stock during the period.

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Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period.

+ References

+ Details

Name:	us-gaap_UnrealizedGainLossOnInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration