Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 178,680	$ 171,392
Income from discontinued operations, net of tax	(39,543)	(27,070)
Restructuring payments	(39,100)	(28,442)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	152,181	129,888
Loss on extinguishment of debt	7,964	0
Stock-based compensation	15,771	18,312
Restructuring charges and asset impairments, net	19,639	29,109
Gain on sale of technology	0	(6,085)
Changes in operating assets and liabilities, net of acquisitions/divestitures:
Decrease in accounts receivable	43,905	43,715
Decrease in finance receivables	80,358	126,774
Increase in inventories	(6,159)	(8,137)
Increase in other current assets and prepayments	(24,436)	(11,800)
Decrease in accounts payable and accrued liabilities	(76,848)	(38,789)
Increase (decrease) in current and non-current income taxes	223	(31,410)
Decrease in advance billings	(34,309)	(32,102)
Other, net	(31,900)	(22,798)
Net cash provided by operating activities - continuing operations	246,426	312,557
Net cash provided by operating activities - discontinued operations	44,200	18,020
Net cash provided by operating activities	290,626	330,577
Cash flows from investing activities:
Purchases of available-for-sale securities	(74,270)	(108,571)
Proceeds from sales/maturities of available-for-sale securities	67,354	89,940
Net activity from short-term and other investments	8,479	(8,082)
Capital expenditures	(140,533)	(118,351)
Proceeds from sale of assets	0	5,458
Acquisition of businesses, net of cash acquired	(2,407)	(7,889)
Change in reserve account deposits	6,864	(2,508)
Other investing activities	(2,500)	(4,500)
Net cash used in investing activities - continuing operations	(137,013)	(154,503)
Net cash provided by (used in) investing activities - discontinued operations	339,198	(1,212)
Net cash used in investing activities - continuing operations	202,185	(155,715)
Cash flows from financing activities:
Proceeds from the issuance of long-term debt	0	1,437,659
Principal payments of long-term debt	(565,141)	(614,449)
Dividends paid to stockholders	(105,296)	(104,524)
Other financing activities	(55,485)	(3,624)
Net cash (used in) provided by financing activities	(725,922)	715,062
Effect of exchange rate changes on cash and cash equivalents	(15,653)	42,457
(Decrease) increase in cash and cash equivalents	(248,764)	932,381
Cash and cash equivalents at beginning of period	1,009,021	764,522
Cash and cash equivalents at end of period	760,257	1,696,903
Less: Cash and cash equivalents of discontinued operations	1,026	0
Cash and cash equivalents	759,231	1,696,903
Cash interest paid	127,624	131,927
Cash income tax payments, net of refunds	$ 17,168	$ 88,021