Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Cash flows from operating activities:
Net income	$ 194,609	$ 241,811	$ 243,528
Income from discontinued operations, net of tax	(154,460)	(60,106)	(63,489)
Restructuring payments	(27,148)	(52,730)	(26,080)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	159,142	148,464	126,790
Stock-based compensation	23,149	21,042	24,389
Restructuring charges and asset impairments, net	69,606	25,899	44,849
Loss on sale of businesses	17,683	0	0
Pension plan settlement	0	31,329	0
Deferred tax provision (benefit)	4,931	64,065	(1,414)
Changes in operating assets and liabilities, net of acquisitions/divestitures:
Decrease (increase) in accounts and other receivables	8,318	(44,031)	(7,165)
Decrease in finance receivables	25,638	53,280	147,836
Increase in inventories	(5,588)	(1,441)	(213)
Increase in other current assets and prepayments	(27,096)	(9,881)	(3,131)
Increase (decrease) in accounts payable and accrued liabilities	11,492	(2,758)	(18,651)
Decrease in current and noncurrent income taxes	(40,119)	(28,127)	(23,516)
Decrease in advance billings	(10,361)	(19,802)	(33,665)
Change in net operating lease assets and liabilities	6,398	346	14,840
Other, net	(13,259)	(16,565)	(23,508)
Net cash provided by operating activities: continuing operations	242,935	350,795	401,400
Net cash provided by (used in) operating activities: discontinued operations	9,272	(7,916)	52,758
Net cash provided by operating activities	252,207	342,879	454,158
Cash flows from investing activities:
Purchases of available-for-sale securities	(57,194)	(81,527)	(125,055)
Proceeds from sales/maturities of available-for-sale securities	108,548	175,820	113,501
Net change in short-term and other investments	(78,814)	11,838	(8,285)
Capital expenditures	(137,253)	(137,810)	(118,247)
Reserve account deposits	16,341	21,008	10,954
Acquisitions, net of cash acquired	(22,100)	(10,484)	(482,853)
Other investing activities	(10,091)	(4,250)	(5,750)
Net cash used in investing activities: continuing operations	(180,563)	(25,405)	(615,735)
Net cash provided by (used in) investing activities: discontinued operations	670,130	334,532	(5,630)
Net cash provided by (used in) investing activities	489,567	309,127	(621,365)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	389,986	0	1,436,660
Principal payments of long-term debt	(930,189)	(570,180)	(964,550)
Dividends paid to stockholders	(35,361)	(140,498)	(139,490)
Common stock repurchases	(105,000)	0	0
Other financing activities	(6,076)	(55,741)	35,127
Net cash (used in) provided by financing activities	(686,640)	(766,419)	367,747
Effect of exchange rate changes on cash and cash equivalents	2,046	(25,381)	43,959
Increase (decrease) in cash and cash equivalents	57,180	(139,794)	244,499
Cash and cash equivalents at beginning of period	867,262	1,009,021	764,522
Cash and cash equivalents at end of period	924,442	869,227	1,009,021
Less cash and cash equivalents of discontinued operations	0	1,965	0
Cash and cash equivalents of continuing operations at end of period	924,442	867,262	1,009,021
Cash interest paid	157,709	171,120	169,279
Cash income tax payments, net of refunds	$ 27,109	$ 25,906	$ 53,247