Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 838,905	$ 867,262
Short-term investments	65,405	59,391
Accounts receivable (net of allowance of $21,029 and $17,617, respectively)	412,661	456,138
Short-term finance receivables (net of allowance of $13,633 and $12,454, respectively)	684,436	758,511
Inventories	68,876	62,279
Current income taxes	21,897	5,947
Other current assets and prepayments	134,929	100,625
Assets of discontinued operations	0	4,854
Total current assets	2,227,109	2,315,007
Property, plant and equipment, net	412,727	410,114
Rental property and equipment, net	41,862	46,228
Long-term finance receivables (net of allowance of $8,518 and $7,768 respectively)	545,360	536,369
Goodwill	1,754,259	1,766,511
Intangible assets, net	223,005	227,137
Operating lease assets	152,139	156,788
Noncurrent income taxes	61,700	66,326
Other assets	388,104	419,677
Total assets	5,806,265	5,944,157
Current liabilities:
Accounts payable and accrued liabilities	1,313,440	1,390,362
Current operating lease liabilities	35,219	37,208
Current portion of long-term debt	207,231	199,535
Advance billings	213,171	235,116
Current income taxes	5,697	15,284
Liabilities of discontinued operations	0	3,276
Total current liabilities	1,774,758	1,880,781
Deferred taxes on income	257,639	254,353
Tax uncertainties and other income tax liabilities	51,950	39,548
Noncurrent operating lease liabilities	124,873	127,237
Long-term debt	3,047,661	3,066,073
Other noncurrent liabilities	463,028	474,323
Total liabilities	5,719,909	5,842,315
Commitments and contingencies (See Note 14)
Stockholders’ equity:
Cumulative preferred stock, $50 par value, 4% convertible	1	1
Cumulative preference stock, no par value, $2.12 convertible	388	396
Common stock, $1 par value (480,000,000 shares authorized; 323,337,912 shares issued)	323,338	323,338
Additional paid-in capital	109,166	121,475
Retained earnings	5,267,615	5,279,682
Accumulated other comprehensive loss	(918,072)	(948,961)
Treasury stock, at cost (140,812,458 and 135,662,830 shares, respectively)	(4,696,080)	(4,674,089)
Total stockholders’ equity	86,356	101,842
Total liabilities and stockholders’ equity	$ 5,806,265	$ 5,944,157