Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 101,727	$ 114,034
Income from discontinued operations	(9,695)	(15,149)
Restructuring payments	(27,528)	(17,651)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	101,862	86,710
Stock-based compensation	9,153	12,531
Restructuring charges and asset impairments, net	12,407	27,639
Gain on sale of technology	0	(6,085)
Changes in operating assets and liabilities, net of acquisitions/divestitures:
Decrease in accounts receivable	14,323	58,263
Decrease in finance receivables	60,563	76,915
Increase in inventories	(6,706)	(3,762)
Increase in other current assets and prepayments	(33,041)	(18,728)
Decrease in accounts payable and accrued liabilities	(47,118)	(69,146)
Increase (decrease) in current and non-current income taxes	4,570	(40,856)
Decrease in advance billings	(22,643)	(22,972)
Other, net	(24,612)	(11,192)
Net cash provided by operating activities - continuing operations	133,262	170,551
Net cash provided by operating activities - discontinued operations	41,772	14,096
Net cash provided by operating activities	175,034	184,647
Cash flows from investing activities:
Purchases of available-for-sale securities	(48,303)	(70,405)
Proceeds from sales/maturities of available-for-sale securities	36,157	61,913
Net activity from short-term and other investments	10,959	(131,303)
Capital expenditures	(100,022)	(75,844)
Acquisition of businesses, net of cash acquired	(2,407)	(7,889)
Change in reserve account deposits	5,959	2,514
Other investing activities	(2,500)	(3,000)
Net cash used in investing activities - continuing operations	(100,157)	(224,014)
Net cash used in investing activities - discontinued operations	(1,169)	(777)
Net cash used in investing activities - continuing operations	(101,326)	(224,791)
Cash flows from financing activities:
Proceeds from the issuance of long-term debt	0	395,772
Principal payments of long-term debt	(260,099)	(229,323)
Dividends paid to stockholders	(70,113)	(69,527)
Other financing activities	(49,606)	(5,551)
Net cash (used in) provided by financing activities	(379,818)	91,371
Effect of exchange rate changes on cash and cash equivalents	(13,041)	24,815
(Decrease) increase in cash and cash equivalents	(319,151)	76,042
Cash and cash equivalents at beginning of period	1,009,021	764,522
Cash and cash equivalents at end of period	689,870	840,564
Cash interest paid	89,339	82,405
Cash income tax payments, net of refunds	$ 19,244	$ 78,649