CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 684,970	$ 796,280
Investments	482,293	938,944
Accounts receivable, net	508,285	568,316
Inventories	333,308	291,569
Other current assets	68,935	68,054
Total current assets	2,077,791	2,663,163
Property, plant and equipment, net	355,965	343,083
Intangible assets, net	243,415	246,902
Goodwill	356,632	355,614
Operating lease assets	94,680
Other assets	121,245	118,664
Total assets	3,249,728	3,727,426
Current liabilities:
Notes payable and debt	100,263	178
Accounts payable	72,367	68,168
Accrued employee compensation	31,563	64,545
Current operating lease liabilities	26,926
Accrued treasury stock repurchases	25,208	23,005
Deferred revenue and customer advances	222,263	164,965
Accrued income taxes	19,854	22,943
Accrued warranty	11,462	12,300
Other current liabilities	93,373	92,827
Total current liabilities	603,279	448,931
Long-term liabilities:
Long-term debt	1,048,283	1,148,172
Long-term income tax liabilities	431,224	430,866
Long-term operating lease liabilities	67,788
Long-term portion of retirement benefits	56,376	55,853
Other long-term liabilities	75,036	76,346
Total long-term liabilities	1,678,707	1,711,237
Total liabilities	2,281,986	2,160,168
Commitments and contingencies (Notes 6, 7,8 and 12)
Stockholders' equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at March 30, 2019 and December 31, 2018
Common stock, par value $0.01 per share, 400,000 shares authorized, 160,825 and 160,472 shares issued, 70,136 and 73,115 shares outstanding at March 30, 2019 and December 31, 2018, respectively	1,608	1,605
Additional paid-in capital	1,872,216	1,834,741
Retained earnings	6,104,191	5,995,205
Treasury stock, at cost, 90,689 and 87,357 shares at March 30, 2019 and December 31, 2018, respectively	(6,901,629)	(6,146,322)
Accumulated other comprehensive loss	(108,644)	(117,971)
Total stockholders' equity	967,742	1,567,258
Total liabilities and stockholders' equity	$ 3,249,728	$ 3,727,426

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682