Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS:
Cash and cash equivalents	$ 291,663	$ 456,264
Short-term investments	382,412	383,176
Restricted investments	4,560	4,560
Accounts receivable, net	373,443	372,348
Inventories:
Raw materials	120,243	116,540
Work in process	126,620	125,982
Finished goods	312,956	282,439
Total inventories	559,819	524,961
Other current assets	120,674	103,215
Total current assets	1,732,571	1,844,524
Property, plant and equipment, at cost	1,261,505	1,227,388
Less: accumulated depreciation and amortization	(756,401)	(738,774)
Property, plant and equipment, net	505,104	488,614
Goodwill, net	516,191	477,115
Purchased intangibles, net	190,614	161,609
Other investments	955,620	830,790
Other assets	52,669	47,852
Total assets	3,952,769	3,850,504
LIABILITIES AND STOCKHOLDERS' EQUITY:
Accounts payable, accrued payroll and employee benefits	231,485	296,473
Current maturities of long-term debt and notes payable	466	334
Income and other taxes payable	33,042	28,124
Other current liabilities	142,511	146,391
Total current liabilities	407,504	471,322
Long-term debt, net of current maturities	434,289	434,186
Other long-term liabilities	403,510	358,237
Total liabilities	1,245,303	1,263,745
Stockholders' equity:
Additional paid-in capital	342,584	332,911
Retained earnings	1,848,337	1,836,180
Accumulated other comprehensive income	516,643	417,766
Total stockholders' equity	2,707,466	2,586,759
Total liabilities and stockholders' equity	3,952,769	3,850,504
Common Class A [Member]
Stockholders' equity:
Common stock	2	2
Common Class B [Member]
Stockholders' equity:
Common stock	1	1
Treasury Class A [Member]
Stockholders' equity:
Treasury Stock, Value	(12)	(12)
Treasury Class B [Member]
Stockholders' equity:
Treasury Stock, Value	$ (89)	$ (89)

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

Name:	us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.