Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Cash flows from operating activities:
Net income	$ 223,665	$ 261,340	$ 111,850
Income from discontinued operations	(23,687)	(39,978)	(17,036)
Restructuring payments	(52,974)	(37,454)	(62,071)
Adjustments to reconcile net income to net cash provided by operating activities:
Restructuring charges and asset impairments, net	27,077	56,223	60,295
Goodwill impairment	0	0	148,181
Depreciation and amortization	203,293	179,650	174,065
Pension plan settlement	31,329	0	0
Special pension plan contribution	0	0	(36,731)
Loss on sale of businesses	0	0	5,786
Gain on sale of technology	0	(6,085)	0
Gain on debt forgiveness	0	0	(10,000)
Stock-based compensation	21,042	24,389	14,882
Deferred tax (benefit) provision	56,981	(25,390)	3,467
Changes in operating assets and liabilities, net of acquisitions/divestitures:
(Increase) decrease in accounts receivable	(35,565)	(15,923)	27,794
Decrease in finance receivables	79,918	125,991	119,883
Decrease (increase) in inventories	93	7,324	(2,880)
(Increase) decrease in other current assets and prepayments	(22,609)	9,118	(717)
Decrease in accounts payable and accrued liabilities	(3,180)	(13,238)	(97,783)
Increase (decrease) in current and non-current income taxes	(24,807)	(14,581)	(1,661)
Decrease in advance billings	(21,506)	(21,193)	(48,432)
Other, net	(37,705)	(23,384)	14,017
Net cash provided by operating activities: continuing operations	421,365	466,809	402,909
Net cash (used in) provided by operating activities: discontinued operations	(29,103)	29,004	93,213
Net cash provided by operating activities	392,262	495,813	496,122
Cash flows from investing activities:
Purchases of available-for-sale securities	(81,527)	(125,055)	(212,810)
Proceeds from sales/maturities of available-for-sale securities	175,820	113,501	211,696
Net change in short-term and other investments	11,838	(8,285)	75,654
Capital expenditures	(191,444)	(168,097)	(159,232)
Proceeds from sale of assets	0	5,458	17,671
Reserve account deposits	21,008	10,954	(2,183)
Acquisitions, net of cash acquired	(10,484)	(482,853)	(37,842)
Other investing activities	(4,250)	(5,750)	(6,908)
Net cash used in investing activities: continuing operations	(79,039)	(660,127)	(113,954)
Net cash provided by (used in) investing activities: discontinued operations	338,783	(2,893)	(1,599)
Net cash provided by (used in) investing activities	259,744	(663,020)	(115,553)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	0	1,436,660	894,744
Principal payments of long-term obligations	(570,180)	(964,550)	(371,007)
Decrease in short-term borrowings	0	0	(90,000)
Dividends paid to stockholders	(140,498)	(139,490)	(140,608)
Dividends paid to noncontrolling interests	0	0	(18,528)
Common stock repurchases	0	0	(197,267)
Redemption of noncontrolling interests	0	0	(300,000)
Other financing activities	(55,741)	35,127	(6,863)
Net cash (used in) provided by financing activities	(766,419)	367,747	(229,529)
Effect of exchange rate changes on cash and cash equivalents	(25,381)	43,959	(26,708)
(Decrease) increase in cash and cash equivalents	(139,794)	244,499	124,332
Cash and cash equivalents at beginning of period	1,009,021	764,522	640,190
Cash and cash equivalents at end of period	869,227	1,009,021	764,522
Less cash and cash equivalents of discontinued operations	1,965	0	0
Cash and cash equivalents	867,262	1,009,021	764,522
Cash interest paid	171,120	169,279	150,567
Cash income tax payments, net of refunds	$ 25,906	$ 53,247	$ 127,299