Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 759,231	$ 1,009,021
Short-term investments	55,929	48,988
Accounts receivable (net of allowance of $17,108 and $14,786, respectively)	378,036	427,022
Short-term finance receivables (net of allowance of $12,570 and $12,187, respectively)	787,121	828,003
Inventories	48,199	40,769
Current income taxes	11,395	58,439
Other current assets and prepayments	92,916	74,589
Assets of discontinued operations	18,273	334,848
Total current assets	2,151,100	2,821,679
Property, plant and equipment, net	399,347	373,503
Rental property and equipment, net	179,058	183,956
Long-term finance receivables (net of allowance of $8,070 and $6,446 respectively)	600,129	652,087
Goodwill	1,765,083	1,774,645
Intangible assets, net	238,167	272,186
Noncurrent income taxes	54,114	59,909
Other assets	526,937	540,750
Total assets	5,913,935	6,678,715
Current liabilities:
Accounts payable and accrued liabilities	1,342,097	1,450,149
Current income taxes	40,018	8,823
Current portion of long-term debt	192,649	271,057
Advance billings	224,141	257,766
Liabilities of discontinued operations	10,446	72,808
Total current liabilities	1,809,351	2,060,603
Deferred taxes on income	230,663	234,643
Tax uncertainties and other income tax liabilities	101,362	116,551
Long-term debt	3,076,968	3,559,278
Other noncurrent liabilities	443,925	519,079
Total liabilities	5,662,269	6,490,154
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	403	441
Common stock, $1 par value (480,000,000 shares authorized; 323,337,912 shares issued)	323,338	323,338
Additional paid-in capital	117,918	138,367
Retained earnings	5,290,761	5,229,584
Accumulated other comprehensive loss	(804,609)	(792,173)
Treasury stock, at cost (135,722,534 and 136,734,174 shares, respectively)	(4,676,146)	(4,710,997)
Total stockholders’ equity	251,666	188,561
Total liabilities and stockholders’ equity	$ 5,913,935	$ 6,678,715