KLA (KLAC) 10-Q 28 Jan 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Dec. 31, 2021	Jan. 14, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity File Number	000-09992
Entity Registrant Name	KLA CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-2564110
Entity Address, Address Line One	One Technology Drive,
Entity Address, City or Town	Milpitas,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95035
City Area Code	408
Local Phone Number	875-3000
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	KLAC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		150,715,343
Amendment Flag	false
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000319201
Current Fiscal Year End Date	--06-30

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Current assets:
Cash and cash equivalents	$ 1,657,057	$ 1,434,610
Marketable securities	1,153,404	1,059,912
Accounts receivable, net	1,728,376	1,305,479
Inventories	1,829,412	1,575,380
Other current assets	333,226	320,867
Total current assets	6,701,475	5,696,248
Land, property and equipment, net	717,178	663,027
Goodwill	2,042,794	2,011,172
Deferred income taxes	662,854	270,461
Purchased intangible assets, net	1,104,991	1,185,311
Other non-current assets	450,945	444,905
Total assets	11,680,237	10,271,124
Current liabilities:
Accounts payable	379,875	342,083
Deferred system revenue	432,854	295,192
Deferred service revenue	307,250	284,936
Short-term debt	20,000	20,000
Other current liabilities	1,636,119	1,161,016
Total current liabilities	2,776,098	2,103,227
Long-term debt	3,424,106	3,422,767
Deferred tax liabilities	679,688	650,623
Deferred service revenue	102,776	87,575
Other non-current liabilities	650,813	631,290
Total liabilities	7,633,481	6,895,482
Commitments and contingencies (Notes 9, 14 and 15)
Stockholders’ equity:
Common stock and capital in excess of par value	2,181,025	2,175,988
Retained earnings	1,943,981	1,277,123
Accumulated other comprehensive loss	(76,479)	(75,557)
Total KLA stockholders’ equity	4,048,527	3,377,554
Non-controlling interest in consolidated subsidiaries	(1,771)	(1,912)
Total stockholders’ equity	4,046,756	3,375,642
Total liabilities and stockholders’ equity	$ 11,680,237	$ 10,271,124

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Revenues	$ 2,352,630	$ 1,650,870	$ 4,436,468	$ 3,189,490
Costs and expenses:
Costs of revenues	908,162	669,733	1,721,786	1,290,295
Research and development	265,031	229,064	523,184	448,102
Selling, general and administrative	213,479	181,909	406,740	354,540
Interest expense	37,852	38,880	76,164	78,266
Other expense (income), net	1,201	3,882	15,341	7,079
Income before income taxes	926,905	527,402	1,693,253	1,011,208
Provision (benefit) for income taxes	209,388	70,419	(92,749)	134,083
Net income	717,517	456,983	1,786,002	877,125
Less: Net income (loss) attributable to non-controlling interest	73	(268)	141	(693)
Net income attributable to KLA	$ 717,444	$ 457,251	$ 1,785,861	$ 877,818
Net income per share attributable to KLA
Basic (in dollars per share)	$ 4.74	$ 2.96	$ 11.77	$ 5.67
Diluted (in dollars per share)	$ 4.71	$ 2.94	$ 11.68	$ 5.62
Weighted-average number of shares:
Basic (in shares)	151,251	154,273	151,791	154,777
Diluted (in shares)	152,331	155,560	152,886	156,057
Product
Revenues:
Revenues	$ 1,895,769	$ 1,238,023	$ 3,525,657	$ 2,383,518
Service
Revenues:
Revenues	$ 456,861	$ 412,847	$ 910,811	$ 805,972

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 717,517	$ 456,983	$ 1,786,002	$ 877,125
Currency translation adjustments:
Cumulative currency translation adjustments	(1,391)	8,901	(4,146)	14,341
Income tax (provision) benefit	78	(787)	395	(1,190)
Net change related to currency translation adjustments	(1,313)	8,114	(3,751)	13,151
Cash flow hedges:
Net unrealized gains (losses) arising during the period	6,741	(1,357)	7,593	(2,275)
Reclassification adjustments for net (gains) losses included in net income	(912)	1,115	(2,130)	1,061
Income tax (provision) benefit	(963)	52	(1,024)	260
Net change related to cash flow hedges	4,866	(190)	4,439	(954)
Net change related to unrecognized losses and transition obligations in connection with defined benefit plans	580	(379)	1,208	(3,498)
Available-for-sale securities:
Net unrealized losses arising during the period	(3,273)	(911)	(3,590)	(1,862)
Reclassification adjustments for net (gains) losses included in net income	3	(111)	2	(212)
Income tax benefit	702	219	770	445
Net change related to available-for-sale securities	(2,568)	(803)	(2,818)	(1,629)
Other comprehensive income (loss)	1,565	6,742	(922)	7,070
Less: Comprehensive income (loss) attributable to non-controlling interest	73	(268)	141	(693)
Total comprehensive income attributable to KLA	$ 719,009	$ 463,993	$ 1,784,939	$ 884,888

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Total KLA Stockholders’ Equity	Total KLA Stockholders’ EquityCumulative Effect, Period of Adoption, Adjustment	Common Stock and Capital in Excess of Par Value, Shares	Common Stock and Capital in Excess of Par Value, Amount	Retained Earnings	Retained EarningsCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss)	Non- Controlling Interest
Beginning balance (in shares) at Jun. 30, 2020					155,461
Beginning balance at Jun. 30, 2020	$ 2,681,010	$ (5,530)	$ 2,665,424	$ (5,530)		$ 2,090,268	$ 654,930	$ (5,530)	$ (79,774)	$ 15,586
Increase (Decrease) in Stockholders' Equity
Net income attributable to KLA	420,567		420,567				420,567
Net income (loss) attributable to non-controlling interest	(425)									(425)
Other comprehensive income	328		328						328
Net issuance under employee stock plans (in shares)					172
Net issuance under employee stock plans	(25,145)		(25,145)			(25,145)
Repurchase of common stock (in shares)					(1,027)
Repurchase of common stock	(193,897)		(193,897)			(19,400)	(174,497)
Cash dividends and dividend equivalents declared	(141,555)		(141,555)				(141,555)
Stock-based compensation expense	26,992		26,992			26,992
Ending balance (in shares) at Sep. 30, 2020					154,606
Ending balance at Sep. 30, 2020	2,762,345		2,747,184			2,072,715	753,915		(79,446)	15,161
Beginning balance (in shares) at Jun. 30, 2020					155,461
Beginning balance at Jun. 30, 2020	2,681,010	$ (5,530)	2,665,424	$ (5,530)		2,090,268	654,930	$ (5,530)	(79,774)	15,586
Increase (Decrease) in Stockholders' Equity
Net income attributable to KLA	877,818
Net income (loss) attributable to non-controlling interest	(693)
Other comprehensive income	7,070
Repurchase of common stock (in shares)					(1,801)
Repurchase of common stock	(371,389)
Ending balance (in shares) at Dec. 31, 2020					154,161
Ending balance at Dec. 31, 2020	2,950,306		2,935,182			2,104,190	903,696		(72,704)	15,124
Beginning balance (in shares) at Sep. 30, 2020					154,606
Beginning balance at Sep. 30, 2020	2,762,345		2,747,184			2,072,715	753,915		(79,446)	15,161
Increase (Decrease) in Stockholders' Equity
Net income attributable to KLA	457,251		457,251				457,251
Net income (loss) attributable to non-controlling interest	(268)									(268)
Other comprehensive income	6,742		6,742						6,742
Net issuance under employee stock plans (in shares)					329
Net issuance under employee stock plans	15,356		15,356			15,356
Repurchase of common stock (in shares)					(774)
Repurchase of common stock	(177,492)		(177,492)			(10,477)	(167,015)
Cash dividends and dividend equivalents declared	(140,455)		(140,455)				(140,455)
Stock-based compensation expense	26,827		26,596			26,596				231
Ending balance (in shares) at Dec. 31, 2020					154,161
Ending balance at Dec. 31, 2020	2,950,306		2,935,182			2,104,190	903,696		(72,704)	15,124
Beginning balance (in shares) at Jun. 30, 2021					152,776
Beginning balance at Jun. 30, 2021	3,375,642		3,377,554			2,175,988	1,277,123		(75,557)	(1,912)
Increase (Decrease) in Stockholders' Equity
Net income attributable to KLA	1,068,417		1,068,417				1,068,417
Net income (loss) attributable to non-controlling interest	68									68
Other comprehensive income	(2,487)		(2,487)						(2,487)
Net issuance under employee stock plans (in shares)					160
Net issuance under employee stock plans	(46,532)		(46,532)			(46,532)
Repurchase of common stock (in shares)					(1,190)
Repurchase of common stock	(399,677)		(399,677)			(16,966)	(382,711)
Cash dividends and dividend equivalents declared	(161,561)		(161,561)				(161,561)
Stock-based compensation expense	25,216		25,216			25,216				0
Ending balance (in shares) at Sep. 30, 2021					151,746
Ending balance at Sep. 30, 2021	3,859,086		3,860,930			2,137,706	1,801,268		(78,044)	(1,844)
Beginning balance (in shares) at Jun. 30, 2021					152,776
Beginning balance at Jun. 30, 2021	3,375,642		3,377,554			2,175,988	1,277,123		(75,557)	(1,912)
Increase (Decrease) in Stockholders' Equity
Net income attributable to KLA	1,785,861
Net income (loss) attributable to non-controlling interest	141
Other comprehensive income	(922)
Repurchase of common stock (in shares)					(2,294)
Repurchase of common stock	(829,551)
Ending balance (in shares) at Dec. 31, 2021					150,847
Ending balance at Dec. 31, 2021	4,046,756		4,048,527			2,181,025	1,943,981		(76,479)	(1,771)
Beginning balance (in shares) at Sep. 30, 2021					151,746
Beginning balance at Sep. 30, 2021	3,859,086		3,860,930			2,137,706	1,801,268		(78,044)	(1,844)
Increase (Decrease) in Stockholders' Equity
Net income attributable to KLA	717,444		717,444				717,444
Net income (loss) attributable to non-controlling interest	73									73
Other comprehensive income	1,565		1,565						1,565
Net issuance under employee stock plans (in shares)					205
Net issuance under employee stock plans	31,157		31,157			31,157
Repurchase of common stock (in shares)					(1,104)
Repurchase of common stock	(429,874)		(429,874)			(15,604)	(414,270)
Cash dividends and dividend equivalents declared	(160,461)		(160,461)				(160,461)
Stock-based compensation expense	27,766		27,766			27,766				0
Ending balance (in shares) at Dec. 31, 2021					150,847
Ending balance at Dec. 31, 2021	$ 4,046,756		$ 4,048,527			$ 2,181,025	$ 1,943,981		$ (76,479)	$ (1,771)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	Dec. 01, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends declared (in dollars per share)	$ 1.05	$ 1.05	$ 0.90	$ 0.90

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net income	$ 1,786,002	$ 877,125
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	170,369	164,323
Unrealized foreign exchange (gain) loss and other	21,728	(18,570)
Asset impairment charges	5,962	865
Stock-based compensation expense	52,982	53,819
Deferred income taxes	(371,228)	(39,507)
Changes in assets and liabilities, net of assets acquired and liabilities assumed in business acquisitions:
Accounts receivable	(444,685)	(117,189)
Inventories	(239,890)	(112,206)
Other assets	2,243	(11,780)
Accounts payable	40,579	(1,783)
Deferred system revenue	145,856	(61,595)
Deferred service revenue	33,468	(1,431)
Other liabilities	471,209	341,181
Net cash provided by operating activities	1,674,595	1,073,252
Cash flows from investing activities:
Proceeds from sale of assets	0	1,855
Business acquisitions, net of cash acquired	(37,986)	0
Capital expenditures	(133,856)	(115,069)
Purchases of available-for-sale securities	(525,840)	(492,048)
Proceeds from sale of available-for-sale securities	40,792	110,812
Proceeds from maturity of available-for-sale securities	372,953	259,327
Purchases of trading securities	(58,342)	(35,371)
Proceeds from sale of trading securities	59,914	39,668
Proceeds from other investments	795	614
Net cash used in investing activities	(281,570)	(230,212)
Cash flows from financing activities:
Proceeds from issuance of debt, net of issuance costs	0	40,343
Proceeds from revolving credit facility	300,000	0
Repayment of debt	(300,000)	(50,000)
Common stock repurchases	(829,551)	(365,389)
Payment of dividends to stockholders	(321,950)	(280,748)
Issuance of common stock	36,912	26,356
Tax withholding payments related to vested and released restricted stock units	(52,287)	(36,145)
Net cash used in financing activities	(1,166,876)	(665,583)
Effect of exchange rate changes on cash and cash equivalents	(3,702)	19,600
Net increase in cash and cash equivalents	222,447	197,057
Cash and cash equivalents at beginning of period	1,434,610	1,234,409
Cash and cash equivalents at end of period	1,657,057	1,431,466
Supplemental cash flow disclosures:
Income taxes paid	226,943	113,949
Interest paid	76,771	76,996
Non-cash activities:
Contingent consideration (receivable) payable - financing activities	14,663	(8,748)
Dividends payable - financing activities	3,737	3,321
Unsettled common stock repurchase - financing activities	5,999	6,000
Accrued purchases of land, property and equipment - investing activities	$ 18,504	$ 25,987

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION Basis of Presentation. For purposes of this report, “KLA,” the “Company,” “we,” “our,” “us,” or similar references mean KLA Corporation and its majority-owned subsidiaries unless the context requires otherwise. The Condensed Consolidated Financial Statements have been prepared by us pursuant to the rules and regulations of the U.S. Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. The unaudited interim Condensed Consolidated Financial Statements do not include all of the information and footnotes required by GAAP for audited financial statements. The balance sheet as of June 30, 2021 was derived from the Company’s audited Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021 but does not include all disclosures required by GAAP for audited financial statements. The unaudited interim Condensed Consolidated Financial Statements reflect all adjustments (consisting only of normal, recurring adjustments) necessary for a fair statement of the financial position, results of operations, comprehensive income, stockholders’ equity and cash flows for the periods indicated. These Condensed Consolidated Financial Statements and notes, however, should be read in conjunction with Item 8 “Financial Statements and Supplementary Data” included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. The Condensed Consolidated Financial Statements include the accounts of KLA and its majority-owned subsidiaries. All significant intercompany balances and transactions have been eliminated. The results of operations for the three and six months ended December 31, 2021 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year ending June 30, 2022. Management Estimates. The preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions in applying our accounting policies that affect the reported amounts of assets and liabilities (and related disclosure of contingent assets and liabilities) at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses for the reporting periods. Actual results could differ from those estimates. Significant Accounting Policies. There have been no material changes to our significant accounting policies summarized in Note 1 “Description of Business and Summary of Significant Accounting Policies” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. Recent Accounting Pronouncements In October 2021, Financial Accounting Standards Board (“FASB”) issued authoritative guidance that requires companies to apply revenue guidance to recognize and measure contract assets and contract liabilities from contracts with customers acquired in a business combination at carrying value. Under the current business combination guidance, such assets and liabilities are recognized by the acquirer at fair value on the acquisition date. This update is effective for us in the first quarter of our fiscal year ending June 30, 2024 and should be applied on a prospective basis. Early adoption is permitted. We are currently evaluating the impact of this guidance on our condensed consolidated financial statements. Recently Adopted In December 2019, the FASB issued an Accounting Standards Update (“ASU”) to simplify the accounting for income taxes in Accounting Standards Codification (“ASC”) 740, Income Taxes (“ASC 740”). This amendment removes certain exceptions and improves consistent application of accounting principles for certain areas in ASC 740. We adopted this update beginning in the first quarter of our fiscal year ending June 30, 2022 on a prospective basis and the adoption had no material impact on our Condensed Consolidated Financial Statements. In August 2020, the FASB issued an ASU to simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The standard eliminates beneficial conversion features and cash conversion models resulting in more convertible instruments being accounted for as a single unit, and modifies the guidance on the computation of earnings per share for convertible instruments and contracts on an

REVENUE

REVENUE	6 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
REVENUE	REVENUE Contract Balances The following table represents the opening and closing balances of accounts receivable, net, contract assets and contract liabilities as of the indicated dates. As of As of (Dollar amounts in thousands) December 31, 2021 June 30, 2021 $ Change % Change Accounts receivable, net $ 1,728,376 $ 1,305,479 $ 422,897 32 % Contract assets $ 96,676 $ 91,052 $ 5,624 6 % Contract liabilities $ 842,880 $ 667,703 $ 175,177 26 % Our payment terms and conditions vary by contract type, although the terms generally include a requirement of payment of 70% to 90% of total contract consideration within 30 to 60 days of product shipment, with the remainder payable within 30 days of acceptance. The change in contract assets during the six months ended December 31, 2021 was mainly due to $62.1 million of revenue recognized for which the payment is subject to conditions other than passage of time, partially offset by $56.9 million of contract assets reclassified to net accounts receivable as our right to consideration for these contract assets became unconditional. Contract assets are included in Other current assets on our Condensed Consolidated Balance Sheets. The change in contract liabilities during the six months ended December 31, 2021 was mainly due to the recognition in revenue of $424.4 million that was included in contract liabilities as of July 1, 2021, partially offset by the value of products and services billed to customers for which control of the products and service has not transferred to the customers. The change in contract liabilities during the six months ended December 31, 2020 was mainly due to the recognition in revenue of $439.9 million that was included in contract liabilities as of July 1, 2020, partially offset by the value of products and services billed to customers for which control of the products and service has not transferred to the customers. Contract liabilities are included in current and non-current liabilities on our Condensed Consolidated Balance Sheets. Remaining Performance Obligations As of December 31, 2021, we had $8.35 billion of remaining performance obligations, which represents our obligation to deliver products and services, and consists primarily of sales orders where written customer requests have been received. We expect to recognize approximately 25% to 40% of these performance obligations as revenue beyond the next 12 months, but this estimate is subject to constant change depending upon supply chain constraints, customer slot change requests and potential elevated demand levels which could have even longer lead times.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS Our financial assets and liabilities are measured and recorded at fair value, except for our debt and certain equity investments in privately held companies. Equity investments without a readily available fair value are accounted for using the measurement alternative. The measurement alternative is calculated as cost minus impairment, if any, plus or minus changes resulting from observable price changes. See Note 8 “Debt” to our Condensed Consolidated Financial Statements for disclosure of the fair value of our Senior Notes. Our non-financial assets, such as goodwill, intangible assets, and land, property and equipment, are assessed for impairment when an event or circumstance indicates that an other-than-temporary decline in value may have occurred. Fair Value of Financial Instruments. We have evaluated the estimated fair value of financial instruments using available market information and valuations as provided by third-party sources. The use of different market assumptions and/or estimation methodologies could have a significant effect on the estimated fair value amounts. The fair value of our cash equivalents, accounts receivable, accounts payable and other current assets and liabilities approximate their carrying amounts due to the relatively short maturity of these items. Fair Value Hierarchy. The authoritative guidance for fair value measurements establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1 Valuations based on quoted prices in active markets for identical assets or liabilities that the entity has the ability to access. Level 2 Valuations based on quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities. Level 3 Valuations based on inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Besides the transfer listed in the table below, there were no other transfers between Level 1, Level 2 and Level 3 fair value measurements during the six months ended December 31, 2021. The types of instruments valued based on quoted market prices in active markets include money market funds, certain U.S. Treasury securities, U.S. Government agency securities and equity securities. Such instruments are generally classified within Level 1 of the fair value hierarchy. The types of instruments valued based on other observable inputs include corporate debt securities, sovereign securities, municipal securities, and certain U.S. Treasury securities. The market inputs used to value these instruments generally consist of market yields, reported trades and broker/dealer quotes. Such instruments are generally classified within Level 2 of the fair value hierarchy. The principal market in which we execute our foreign currency contracts is the institutional market in an over-the-counter environment with a relatively high level of price transparency. The market participants generally are large financial institutions. Our foreign currency contracts’ valuation inputs are based on quoted prices and quoted pricing intervals from public data sources and do not involve management judgment. These contracts are typically classified within Level 2 of the fair value hierarchy. The fair values of deferred payments and contingent consideration payable, the majority of which were recorded in connection with business combinations, were classified as Level 3 and estimated using significant inputs that were not observable in the market. See Note 6 “Business Combinations” to our Condensed Consolidated Financial Statements for additional information. Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the date indicated below, were presented on our Condensed Consolidated Balance Sheets as follows: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Little or No Market Activity Inputs As of December 31, 2021 (In thousands) Total (Level 1) (Level 2) (Level 3) Assets Cash equivalents: Money market funds and other $ 776,782 $ 776,782 $ — $ — Marketable securities: Corporate debt securities 479,974 — 479,974 — Municipal securities 67,268 — 67,268 — Sovereign securities 5,031 — 5,031 — U.S. Government agency securities 121,089 121,089 — — U.S. Treasury securities 294,380 288,082 6,298 — Equity securities (1) 21,033 21,033 — — Total cash equivalents and marketable securities (2) 1,765,557 1,206,986 558,571 — Other current assets: Derivative assets 14,039 — 14,039 — Other non-current assets: Executive Deferred Savings Plan 274,529 208,307 66,222 — Total financial assets (2) $ 2,054,125 $ 1,415,293 $ 638,832 $ — Liabilities Derivative liabilities $ (3,817) $ — $ (3,817) $ — Deferred payments (4,700) — — (4,700) Contingent consideration payable (23,177) — — (23,177) Total financial liabilities $ (31,694) $ — $ (3,817) $ (27,877) ________________ (1) Transfer from Level 2 to Level 1 as the security specific restriction expired during the first quarter of the fiscal year ending June 30, 2022. (2) Excludes cash of $783.0 million held in operating accounts and time deposits of $261.9 million (of which $97.3 million were cash equivalents) as of December 31, 2021. Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the date indicated below, were presented on our Condensed Consolidated Balance Sheets as follows: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Little or No Market Activity Inputs As of June 30, 2021 (In thousands) Total (Level 1) (Level 2) (Level 3) Assets Cash equivalents: Money market funds and other $ 691,375 $ 691,375 $ — $ — Marketable securities: Corporate debt securities 468,746 — 468,746 — Municipal securities 70,228 — 70,228 — Sovereign securities 3,052 — 3,052 — U.S. Government agency securities 145,921 145,921 — — U.S. Treasury securities 233,064 205,055 28,009 — Equity securities 29,930 — 29,930 — Total cash equivalents and marketable securities (1) 1,642,316 1,042,351 599,965 — Other current assets: Derivative assets 8,252 — 8,252 — Other non-current assets: Executive Deferred Savings Plan 266,199 200,925 65,274 — Total financial assets (1) $ 1,916,767 $ 1,243,276 $ 673,491 $ — Liabilities Derivative liabilities $ (2,807) $ — $ (2,807) $ — Deferred payments (4,550) — — (4,550) Contingent consideration payable (8,514) — — (8,514) Total financial liabilities $ (15,871) $ — $ (2,807) $ (13,064) ________________ (1) Excludes cash of $641.6 million held in operating accounts and time deposits of $210.6 million (of which $101.7 million were cash equivalents) as of June 30, 2021.

FINANCIAL STATEMENT COMPONENTS

FINANCIAL STATEMENT COMPONENTS	6 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
FINANCIAL STATEMENT COMPONENTS	FINANCIAL STATEMENT COMPONENTS Condensed Consolidated Balance Sheets As of As of (In thousands) December 31, 2021 June 30, 2021 Accounts receivable, net: Accounts receivable, gross $ 1,747,734 $ 1,323,515 Allowance for credit losses (19,358) (18,036) $ 1,728,376 $ 1,305,479 Inventories: Customer service parts $ 371,341 $ 349,743 Raw materials 786,744 595,151 Work-in-process 427,972 453,432 Finished goods 243,355 177,054 $ 1,829,412 $ 1,575,380 Other current assets: Contract assets $ 96,676 $ 91,052 Deferred costs of revenues 83,153 59,953 Prepaid expenses 78,064 76,649 Prepaid income and other taxes 37,731 68,847 Other current assets 37,602 24,366 $ 333,226 $ 320,867 Land, property and equipment, net: Land $ 67,862 $ 67,862 Buildings and leasehold improvements 469,025 458,605 Machinery and equipment 756,921 743,710 Office furniture and fixtures 33,067 32,856 Construction-in-process 236,543 182,320 1,563,418 1,485,353 Less: accumulated depreciation (846,240) (822,326) $ 717,178 $ 663,027 Other non-current assets: Executive Deferred Savings Plan (1) $ 274,529 $ 266,199 Operating lease right of use assets 97,836 102,883 Other non-current assets 78,580 75,823 $ 450,945 $ 444,905 Other current liabilities: Compensation and benefits $ 500,301 $ 305,445 Customer credits and advances 482,991 250,784 Executive Deferred Savings Plan (1) 274,508 268,028 Other accrued expenses 184,347 180,982 Income taxes payable 125,535 87,320 Interest payable 35,970 36,135 Operating lease liabilities 32,467 32,322 $ 1,636,119 $ 1,161,016 Other non-current liabilities: Income taxes payable $ 340,890 $ 333,866 Pension liabilities 85,677 87,602 Operating lease liabilities 62,553 70,739 Other non-current liabilities 161,693 139,083 $ 650,813 $ 631,290 ________________ (1) We have a non-qualified deferred compensation plan (known as “Executive Deferred Savings Plan” or “EDSP”) under which certain employees and non-employee directors may defer a portion of their compensation. The expense associated with changes in the EDSP liability included in selling, general and administrative (“SG&A”) expense was $12.0 million and $22.1 million during the three months ended December 31, 2021 and 2020, respectively and was $11.0 million and $35.3 million during the six months ended December 31, 2021 and 2020, respectively. The amount of net gains associated with changes in the EDSP assets included in SG&A expense was $11.8 million and $22.2 million during the three months ended December 31, 2021 and 2020, respectively and was $10.7 million and $35.5 million during the six months ended December 31, 2021 and 2020, respectively. For additional details, refer to Note 1 “Description of Business and Summary of Significant Accounting Policies” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. Accumulated Other Comprehensive Income (Loss) (“AOCI”) The components of AOCI as of the dates indicated below were as follows: (In thousands) Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Gains (Losses) on Derivatives Unrealized Gains (Losses) on Defined Benefit Plans Total Balance as of December 31, 2021 $ (36,314) $ (2,223) $ (15,653) $ (22,289) $ (76,479) Balance as of June 30, 2021 $ (32,563) $ 595 $ (20,092) $ (23,497) $ (75,557) The effects on net income (loss) of amounts reclassified from AOCI to the Condensed Consolidated Statements of Operations for the indicated period were as follows (in thousands): AOCI Components Three Months Ended Six Months Ended Location in the Condensed Consolidated December 31, December 31, Statement of Operations 2021 2020 2021 2020 Unrealized gains (losses) on cash flow hedges from foreign exchange and interest rate contracts Revenues $ 1,539 $ (711) $ 3,268 $ (928) Costs of revenues and operating expenses (348) (125) (580) 425 Interest expense (279) (279) (558) (558) Net gains (losses) reclassified from AOCI $ 912 $ (1,115) $ 2,130 $ (1,061) Unrealized gains (losses) on available-for-sale securities Other expense (income), net $ (3) $ 111 $ (2) $ 212 The amounts reclassified out of AOCI related to our defined benefit pension plans that were recognized as a component of net periodic cost for the three months ended December 31, 2021 and 2020 were $0.4 million and $0.3 million, respectively and for the six months ended December 31, 2021 and 2020 were $0.7 million and $0.5 million, respectively. For additional details, refer to Note 13 “Employee Benefit Plans” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021.

MARKETABLE SECURITIES

MARKETABLE SECURITIES	6 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
MARKETABLE SECURITIES	MARKETABLE SECURITIES The amortized cost and fair value of marketable securities as of the dates indicated below were as follows: As of December 31, 2021 (In thousands) Amortized Gross Gross Fair Corporate debt securities $ 481,191 $ 95 $ (1,312) $ 479,974 Money market funds and other 776,782 — — 776,782 Municipal securities 67,501 14 (247) 67,268 Sovereign securities 5,036 5 (10) 5,031 U.S. Government agency securities 121,255 58 (224) 121,089 U.S. Treasury securities 295,590 4 (1,214) 294,380 Equity securities (1) 3,211 17,822 — 21,033 Subtotal 1,750,566 17,998 (3,007) 1,765,557 Add: Time deposits (2) 261,942 — — 261,942 Less: Cash equivalents 874,095 — — 874,095 Marketable securities $ 1,138,413 $ 17,998 $ (3,007) $ 1,153,404 As of June 30, 2021 (In thousands) Amortized Gross Gross Fair Corporate debt securities $ 468,192 $ 689 $ (135) $ 468,746 Money market funds and other 691,375 — — 691,375 Municipal securities 70,155 106 (33) 70,228 Sovereign securities 3,045 7 — 3,052 U.S. Government agency securities 145,810 160 (49) 145,921 U.S. Treasury securities 233,052 129 (117) 233,064 Equity securities (1) 3,211 26,719 — 29,930 Subtotal 1,614,840 27,810 (334) 1,642,316 Add: Time deposits (2) 210,636 — — 210,636 Less: Cash equivalents 793,040 — — 793,040 Marketable securities $ 1,032,436 $ 27,810 $ (334) $ 1,059,912 ________________ (1) Unrealized gains on equity securities included in our portfolio include the initial fair value adjustment recorded upon a security becoming marketable. (2) Time deposits excluded from fair value measurements. Our investment portfolio includes both corporate and government securities that have a maximum maturity of three years. The longer the duration of these securities, the more susceptible they are to changes in market interest rates and bond yields. As yields increase, those securities with a lower yield-at-cost show a mark-to-market unrealized loss. Most of our unrealized losses are due to changes in market interest rates and bond yields. We believe that we have the ability to realize the full value of all of these investments upon maturity. As of December 31, 2021, we had 488 investments in a gross unrealized loss position. The following table summarizes the fair value and gross unrealized losses of our investments that were in an unrealized loss position as of the date indicated below, none of which were in a continuous loss position for 12 months or more: As of December 31, 2021 (In thousands) Fair Value Gross Corporate debt securities $ 383,964 $ (1,312) Sovereign securities 1,993 (10) Municipal securities 60,649 (247) U.S. Government agency securities 66,225 (224) U.S. Treasury securities 278,686 (1,214) Total $ 791,517 $ (3,007) As of June 30, 2021 (In thousands) Fair Value Gross Corporate debt securities $ 161,012 $ (135) Municipal securities 21,605 (33) U.S. Government agency securities 38,904 (49) U.S. Treasury securities 117,761 (117) Total $ 339,282 $ (334) The contractual maturities of securities classified as available-for-sale, regardless of their classification on our Condensed Consolidated Balance Sheets, as of the date indicated below were as follows: As of December 31, 2021 (In thousands) Amortized Cost Fair Value Due within one year $ 519,562 $ 537,300 Due after one year through three years 618,851 616,104 Total $ 1,138,413 $ 1,153,404 Actual maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Realized gains and losses on available-for-sale securities for the three and six months ended December 31, 2021 and 2020 were immaterial.

BUSINESS COMBINATIONS

BUSINESS COMBINATIONS	6 Months Ended
	Dec. 31, 2021
Business Combinations [Abstract]
BUSINESS COMBINATIONS	BUSINESS COMBINATIONS On September 17, 2021, we signed a purchase agreement to acquire the outstanding shares of a privately held company for $460.0 million plus closing cash, less closing debt and certain other expenses. The purpose of the proposed acquisition is to expand our products and service offerings. We expect the acquisition to be completed in the third quarter of fiscal year 2022, subject to the satisfaction or waiver of the closing conditions to the purchase agreement. On July 1, 2021, we acquired the outstanding shares of Anchor Semiconductor Inc., a privately-held company, primarily to expand our products and services offerings, for a total purchase consideration of $81.7 million, including a post-closing working capital adjustment accrued in the quarter ended December 31, 2021, as well as the fair value of the promise to pay an additional consideration up to $35.0 million contingent on the achievement of certain revenue milestones. As of December 31, 2021, the estimated fair value of the additional consideration was $13.0 million, which was classified as a non-current liability on the Condensed Consolidated Balance Sheets. The total purchase consideration was allocated as follows: $31.7 million to identifiable intangible assets, $26.4 million to net tangible assets, $8.0 million to deferred tax liabilities, and $31.6 million to goodwill. The total purchase consideration is preliminary, and as additional information becomes available, we may further revise it during the remainder of the measurement period, which will not exceed 12 months from the closing of the acquisition. The $31.6 million of goodwill was assigned to the Wafer Inspection and Patterning reporting unit, and the amount recognized was not deductible for tax purposes. We have included the financial results of the acquisition completed during the first quarter of the fiscal year 2022 in our Condensed Consolidated Financial Statements from the date of acquisition. These results were not material to our Condensed Consolidated Financial Statements. As of December 31, 2021, we have $23.2 million of contingent consideration recorded for this acquisition and other acquisitions from the fiscal year ended June 30, 2019, of which $1.1 million is classified as a current liability and $22.1 million as a non-current liability on the Condensed Consolidated Balance Sheet.

GOODWILL AND PURCHASED INTANGIB

GOODWILL AND PURCHASED INTANGIBLE ASSETS	6 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND PURCHASED INTANGIBLE ASSETS	GOODWILL AND PURCHASED INTANGIBLE ASSETS Goodwill Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in the current and prior quarters ’ business combinations. We have four reportable segments and six operating segments. The operating segments are determined to be the same as reporting units. For additional details, refer to Note 18 “Segment Reporting and Geographic Information” to our Condensed Consolidated Financial Statements. The following table presents changes in goodwill carrying value during the six months ended December 31, 2021 (1) : (In thousands) Wafer Inspection and Patterning Global Service and Support ( “ GSS ” ) Specialty Semiconductor Process PCB and Display Component Inspection Total Balance as of June 30, 2021 $ 416,860 $ 25,908 $ 681,858 $ 872,971 $ 13,575 $ 2,011,172 Acquired goodwill 31,621 — — — — 31,621 Foreign currency adjustments 1 — — — — 1 Balance as of December 31, 2021 $ 448,482 $ 25,908 $ 681,858 $ 872,971 $ 13,575 $ 2,042,794 _________________ (1) No goodwill was assigned to the Other reporting unit and, accordingly, it was excluded from the table above. Goodwill is not subject to amortization but is tested for impairment annually during the third fiscal quarter, as well as whenever events or changes in circumstances indicate that the carrying value may not be recoverable. As of December 31, 2021, there have been no significant events or circumstances affecting the valuation of goodwill subsequent to the annual assessment performed in the third quarter of the fiscal year ended June 30, 2021. There was no goodwill impairment as a result of that assessment. For additional details, refer to Note 7 “Goodwill and Purchased Intangible Assets” to our Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2021. Purchased Intangible Assets The components of purchased intangible assets as of the dates indicated below were as follows: (In thousands) As of December 31, 2021 As of June 30, 2021 Category Range of Useful Lives (in years) Gross Accumulated Net Gross Accumulated Net Existing technology 4-8 $ 1,400,191 $ 581,249 $ 818,942 $ 1,382,612 $ 499,219 $ 883,393 Customer relationships 4-9 313,317 148,452 164,865 305,817 131,386 174,431 Trade name / Trademark 4-7 117,983 60,707 57,276 117,383 53,493 63,890 Backlog and other <1-9 52,836 50,522 2,314 50,403 49,962 441 Intangible assets subject to amortization 1,884,327 840,930 1,043,397 1,856,215 734,060 1,122,155 In-process research and development 67,656 6,062 61,594 63,256 100 63,156 Total $ 1,951,983 $ 846,992 $ 1,104,991 $ 1,919,471 $ 734,160 $ 1,185,311 Purchased intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be fully recoverable. The impairment indicator primarily includes the declines in our operating cash flows from the use of these assets. If the impairment indicators are present, we are required to perform a recoverability test by comparing the sum of the estimated undiscounted future cash flows attributable to these long-lived assets to their carrying value. As of December 31, 2021, there were no impairment indicators for purchased intangible assets. Amortization expense for purchased intangible assets for the periods indicated below was as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Amortization expense - Costs of revenues $ 41,124 $ 38,738 $ 82,248 $ 75,778 Amortization expense - SG&A 12,389 12,301 24,778 25,730 Amortization expense - Research and development 31 31 62 62 Total $ 53,544 $ 51,070 $ 107,088 $ 101,570 Based on the purchased intangible assets gross carrying amount recorded as of December 31, 2021, the remaining estimated annual amortization expense is expected to be as follows: Fiscal year ending June 30: Amortization (In thousands) 2022 (remaining six months) $ 107,197 2023 212,659 2024 209,665 2025 197,596 2026 182,271 2027 and thereafter 134,009 Total $ 1,043,397

DEBT

DEBT	6 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
DEBT	DEBT The following table summarizes our debt as of December 31, 2021 and June 30, 2021: As of December 31, 2021 As of June 30, 2021 Amount Effective Amount Effective Fixed-rate 4.650% Senior Notes due on November 1, 2024 $ 1,250,000 4.682 % $ 1,250,000 4.682 % Fixed-rate 5.650% Senior Notes due on November 1, 2034 250,000 5.670 % 250,000 5.670 % Fixed-rate 4.100% Senior Notes due on March 15, 2029 800,000 4.159 % 800,000 4.159 % Fixed-rate 5.000% Senior Notes due on March 15, 2049 400,000 5.047 % 400,000 5.047 % Fixed-rate 3.300% Senior Notes due on March 1, 2050 750,000 3.302 % 750,000 3.302 % Fixed-rate 3.590% Note Payable due on February 20, 2022 20,000 2.300 % 20,000 2.300 % Total 3,470,000 3,470,000 Unamortized discount/premium, net (6,878) (7,168) Unamortized debt issuance costs (19,016) (20,065) Total $ 3,444,106 $ 3,442,767 Reported as: Short-term debt $ 20,000 $ 20,000 Long-term debt 3,424,106 3,422,767 Total $ 3,444,106 $ 3,442,767 As of December 31, 2021, future minimum principal payments for our debt are as follows: $20.0 million in fiscal year 2022, $1.25 billion in fiscal year 2025 and $2.20 billion after fiscal year 2026. Senior Notes and Debt Redemption In February 2020, we issued $750.0 million aggregate principal amount of senior, unsecured long-term notes (the “2020 Senior Notes”). In March 2019 and November 2014, we issued $1.20 billion (the “2019 Senior Notes”) and $2.50 billion (the “2014 Senior Notes,” and, together with the 2019 Senior Notes and the 2020 Senior Notes, the “Senior Notes”), respectively, aggregate principal amount of senior, unsecured long-term notes. In each of the second quarters of fiscal 2018 and 2020, we repaid $250.0 million of the 2014 Senior Notes and in the third quarter of fiscal 2020 we repaid another $500.0 million of the 2014 Senior Notes using the proceeds from the issuance of the 2020 Senior Notes, bringing the outstanding aggregate principal amount of the 2014 Senior Notes to $1.50 billion as of December 31, 2021. The interest rates for our Senior Notes are not subject to adjustment. Interest is payable as follows: semi-annually on March 1 and September 1 of each year for the 2020 Senior Notes; semi-annually on March 15 and September 15 of each year for the 2019 Senior Notes; and semi-annually on May 1 and November 1 of each year for the 2014 Senior Notes. The indenture for the Senior Notes (the “Indenture”) includes covenants that limit our ability to grant liens on our facilities and enter into sale and leaseback transactions, subject to certain allowances under which certain sale and leaseback transactions are not restricted. In certain circumstances involving a change of control followed by a downgrade of the rating of a series of Senior Notes by at least two of Moody’s Investors Service, S&P Global Ratings and Fitch Inc., unless we have exercised our rights to redeem the Senior Notes of such series, we will be required to make an offer to repurchase all or, at the holder’s option, any part, of each holder’s Senior Notes of that series pursuant to the offer described below (the “Change of Control Offer”). In the Change of Control Offer, we will be required to offer payment in cash equal to 101% of the aggregate principal amount of Senior Notes repurchased plus accrued and unpaid interest, if any, on the Senior Notes repurchased, up to, but not including, the date of repurchase. Based on the trading prices of the Senior Notes on the applicable dates, the fair value of the Senior Notes as of December 31, 2021 and June 30, 2021 was $3.92 billion and $3.98 billion, respectively. While the Senior Notes are recorded at cost, the fair value of the long-term debt was determined based on quoted prices in markets that are not active; accordingly, the long-term debt is categorized as Level 2 for purposes of the fair value measurement hierarchy. As of December 31, 2021, we were in compliance with all of our covenants under the Indenture associated with the Senior Notes. Revolving Credit Facility We have in place a Credit Agreement (the “Credit Agreement”) providing for a $1.00 billion unsecured Revolving Credit Facility (the "Revolving Credit Facility") with a maturity date of November 30, 2023. During the first quarter of the fiscal year ending June 30, 2022, we borrowed $300.0 million from the Revolving Credit Facility, which was paid in full in the same quarter. As of December 31, 2021, we had no outstanding borrowings under the Revolving Credit Facility. We may borrow, repay and reborrow funds under the Revolving Credit Facility until the maturity date, at which time such Revolving Credit Facility will terminate, and all outstanding loans under such facility, together with all accrued and unpaid interest, must be repaid. We may prepay outstanding borrowings under the Revolving Credit Facility at any time without a prepayment penalty. Borrowings under the Revolving Credit Facility will bear interest, at our option, at either: (i) the Alternative Base Rate (“ABR”) plus a spread, which ranges from 0 bps to 75 bps, or (ii) the London Interbank Offered Rate (“LIBOR”) plus a spread, which ranges from 100 bps to 175 bps. The spreads under ABR and LIBOR are subject to adjustment in conjunction with credit rating downgrades or upgrades. We are also obligated to pay an annual commitment fee on the daily undrawn balance of the Revolving Credit Facility, which ranges from 10 bps to 25 bps, subject to an adjustment in conjunction with changes to our credit rating. As of December 31, 2021, we elected to pay interest on the borrowed amount under the Revolving Credit Facility at LIBOR plus a spread of 100 bps, and we pay an annual commitment fee of 10 bps on the daily undrawn balance of the Revolving Credit Facility. The Revolving Credit Facility requires us to maintain an interest expense coverage ratio as described in the Credit Agreement, on a quarterly basis, covering the trailing four consecutive fiscal quarters of no less than 3.50 to 1.00. In addition, we are required to maintain the maximum leverage ratio as described in the Credit Agreement, on a quarterly basis of 3.00 to 1.00, covering the trailing four consecutive fiscal quarters for each fiscal quarter, which can be increased to 4.00 to 1.00 for a period of time in connection with a material acquisition or a series of material acquisitions. As of December 31, 2021, our maximum allowed leverage ratio was 3.00 to 1.00. We were in compliance with all covenants under the Credit Agreement as of December 31, 2021. Notes Payable In December 2020 we sold promissory notes to a financial institution, borrowing an aggregate principal amount of $40.0 million ("Notes Payable"). Of the aggregate amount borrowed, $20.0 million matured and was paid on February 20, 2021 and the balance of $20.0 million matures on February 20, 2022. The premium of $0.3 million from the sale of the Notes Payable is being amortized over the life of the debt. The net proceeds from the sale of the Notes Payable were used for general corporate purposes. For additional details, refer to Note 8 “Debt” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021.

LEASES

LEASES	6 Months Ended
	Dec. 31, 2021
Leases [Abstract]
LEASES	LEASES We have operating leases for facilities, vehicles and other equipment. Our facility leases are primarily used for administrative functions, research and development (“R&D”), manufacturing, and storage and distribution. Our finance leases are not material. Our existing leases do not contain significant restrictive provisions or residual value guarantees; however, certain leases contain provisions for the payment of maintenance, real estate taxes, or insurance costs by us. Our leases have remaining lease terms ranging from less than one year to 16 years, including periods covered by options to extend the lease when it is reasonably certain that the option will be exercised. Lease expense was $9.1 million and $18.3 million for the three and six months ended December 31, 2021, respectively, and $10.0 million and $19.6 million for the three and six months ended December 31, 2020, respectively. Expense related to short-term leases, which are not recorded on the Condensed Consolidated Balance Sheets, was not material for three and six months ended December 31, 2021 and 2020. As of December 31, 2021 and June 30, 2021, the weighted-average remaining lease term was 4.3 years and 4.6 years, respectively, and the weighted-average discount rate for operating leases was 1.62% and 1.64%, respectively. Supplemental cash flow information related to leases was as follows: Six Months Ended December 31, In thousands 2021 2020 Operating cash outflows from operating leases $ 19,050 $ 19,253 Right of use assets obtained in exchange for new operating lease liabilities $ 11,389 $ 20,584 Maturities of lease liabilities as of December 31, 2021 were as follows: Fiscal Year Ending June 30: (In thousands) 2022 (remaining six months) $ 18,100 2023 27,797 2024 17,891 2025 12,716 2026 9,633 2027 and thereafter 12,798 Total lease payments 98,935 Less imputed interest (3,915) Total $ 95,020 As of December 31, 2021, we did not have any material leases that had not yet commenced.

EQUITY, LONG-TERM INCENTIVE COM

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST	6 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST	EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST Equity Incentive Program As of December 31, 2021, 9.9 million shares remained available for issuance under our 2004 Equity Incentive Plan (the “2004 Plan”). For details of the 2004 Plan refer to Note 10 “Equity, Long-Term Incentive Compensation Plans and Non-Controlling Interest” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. Assumed Equity Plans As part of the acquisition of Orbotech Ltd. (“Orbotech”) in February 2019, we assumed outstanding equity incentive awards under the following Orbotech equity incentive plans: (i) Equity Remuneration Plan for Key Employees of Orbotech and its Affiliates and Subsidiaries (as Amended and Restated in 2005), (ii) 2010 Equity-Based Incentive Plan, and (iii) 2015 Equity-Based Incentive Plan (the “Assumed Equity Plans”). As of December 31, 2021, there were 23,788 shares of our common stock underlying the outstanding Assumed restricted stock units (“RSUs”) under the Assumed Equity Plans. For details on the Assumed Equity Plans refer to Note 10 “Equity, Long-Term Incentive Compensation Plans and Non-Controlling Interest” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. Equity Incentive Plans - General Information The following table summarizes the combined activity under our equity incentive plans: (In thousands) Available For Grant (1) (2) Balance as of June 30, 2021 10,253 RSUs granted (3) (467) RSUs granted adjustment (4) 39 RSUs canceled 62 Balance as of December 31, 2021 9,887 __________________ (1) The number of RSUs reflects the application of the award multiplier of 2.0x to calculate the impact of the award on the shares reserved under the 2004 Plan. (2) No additional stock options, RSUs or other awards will be granted under the Assumed Equity Plans. (3) Includes RSUs granted to senior management during the six months ended December 31, 2021 with performance-based vesting criteria (in addition to service-based vesting criteria for any of such RSUs that are deemed to have been earned) (“performance-based RSUs”). This line item includes all such performance-based RSUs granted during the six months ended December 31, 2021 reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.2 million shares for the six months ended December 31, 2021 reflects the application of the multiplier described above). (4) Represents the portion of RSUs granted with performance-based vesting criteria and reported at the actual number of shares issued upon achievement of the performance-based vesting criteria during the six months ended December 31, 2021. The fair value of stock-based awards is measured at the grant date and is recognized as an expense over the employee’s requisite service period. For RSUs granted without “dividend equivalent” rights, fair value is calculated using the closing price of our common stock on the grant date, adjusted to exclude the present value of dividends which are not accrued on those RSUs. The fair value for RSUs granted with “dividend equivalent” rights is determined using the closing price of our common stock on the grant date. Compensation expense for RSUs with performance metrics is calculated based upon expected achievement of the metrics specified in the grant, or when a grant contains a market condition, the grant date fair value using a Monte Carlo simulation. The following table shows stock-based compensation expense for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Stock-based compensation expense by: Costs of revenues $ 4,094 $ 4,104 $ 7,932 $ 7,771 R&D 4,901 5,225 9,595 10,696 SG&A 18,771 17,498 35,455 35,352 Total stock-based compensation expense $ 27,766 $ 26,827 $ 52,982 $ 53,819 Stock-based compensation capitalized as inventory as of December 31, 2021 and June 30, 2021 was $7.4 million and $8.0 million, respectively. Restricted Stock Units The following table shows the activity and weighted-average grant date fair values for RSUs during the six months ended December 31, 2021: Shares (1) (In thousands) Weighted-Average Outstanding RSUs as of June 30, 2021 (2) 1,710 $ 133.76 Granted (3) 234 $ 356.39 Granted adjustments (19) $ 118.47 Vested and released (226) $ 126.60 Withheld for taxes (148) $ 126.60 Forfeited (35) $ 137.88 Outstanding RSUs as of December 31, 2021 (2) 1,516 $ 169.87 __________________ (1) Share numbers reflect actual shares subject to awarded RSUs. (2) Includes performance-based RSUs. (3) This line item includes performance-based RSUs granted during the six months ended December 31, 2021 reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.1 million shares for the six months ended December 31, 2021). The RSUs granted by us generally vest as follows: with respect to awards with only service-based vesting criteria, over periods ranging from two The following table shows the weighted-average grant date fair value per unit for the RSUs granted, vested, and tax benefits realized by us in connection with vested and released RSUs for the indicated periods : Three Months Ended December 31, Six Months Ended December 31, (In thousands, except for weighted-average grant date fair value) 2021 2020 2021 2020 Weighted-average grant date fair value per unit $ 393.67 $ 220.53 $ 356.39 $ 202.60 Grant date fair value of vested RSUs $ 10,563 $ 23,267 $ 47,303 $ 50,569 Tax benefits realized by us in connection with vested and released RSUs $ 4,913 $ 6,694 $ 13,921 $ 13,431 As of December 31, 2021, the unrecognized stock-based compensation expense balance related to RSUs was $177.5 million, excluding the impact of estimated forfeitures, and will be recognized over a weighted-average remaining contractual term and an estimated weighted-average amortization period of 1.4 years. The intrinsic value of outstanding RSUs as of December 31, 2021 was $652.2 million. Cash-Based Long-Term Incentive Compensation We have adopted a cash-based long-term incentive (“Cash LTI”) program (“Cash LTI Plan”) for many of our employees as part of our employee compensation program. Executives and non-employee members of the Board of Directors do not participate in the Cash LTI Plan. During the six months ended December 31, 2021 and 2020, we approved Cash LTI awards of $12.9 million and $4.1 million, respectively. Cash LTI awards issued to employees under the Cash LTI Plan will vest in three or four equal installments, with one-third or one-fourth of the aggregate amount of the Cash LTI award vesting on each anniversary of the grant date over a three the six months ended December 31, 2021 and 2020, we recognized $44.0 million and $36.7 million, respectively, in compensation expense under the Cash LTI Plan. As of December 31, 2021, the unrecognized compensation balance (excluding the impact of estimated forfeitures) related to the Cash LTI Plan was $184.5 million. For details, refer to Note 10 “Equity, Long-Term Incentive Compensation Plans and Non-Controlling Interest” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. Employee Stock Purchase Plan Our Employee Stock Purchase Plan (“ESPP”) provides that eligible employees may contribute up to 15% of their eligible earnings toward the semi-annual purchase of our common stock. The ESPP is qualified under Section 423 of the Internal Revenue Code. The employee’s purchase price is derived from a formula based on the closing price of the common stock on the first day of the offering period versus the closing price on the date of purchase (or, if not a trading day, on the immediately preceding trading day). The offering period (or length of the look-back period) under the ESPP has a duration of six months, and the purchase price with respect to each offering period, until otherwise amended, equal to 85% of the lesser of (i) the fair market value of our common stock at the commencement of the applicable six-month offering period or (ii) the fair market value of our common stock on the purchase date. We estimate the fair value of purchase rights under the ESPP using a Black-Scholes model. The fair value of each purchase right under the ESPP was estimated on the date of grant using the Black-Scholes model and the straight-line attribution approach with the following weighted-average assumptions: Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Stock purchase plan: Expected stock price volatility 34.9 % 51.9 % 34.9 % 51.9 % Risk-free interest rate 0.1 % 0.7 % 0.1 % 0.7 % Dividend yield 1.4 % 1.9 % 1.4 % 1.9 % Expected life (in years) 0.5 0.5 0.5 0.5 The following table shows total cash received from employees for the issuance of shares under the ESPP, the number of shares purchased by employees through the ESPP, the tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP and the weighted-average fair value per share for the indicated periods: (In thousands, except for weighted-average fair value per share) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Total cash received from employees for the issuance of shares under the ESPP $ 36,912 $ 26,356 $ 36,912 $ 26,356 Number of shares purchased by employees through the ESPP 139 161 139 161 Tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP $ 231 $ 272 $ 1,198 $ 1,164 Weighted-average fair value per share based on Black-Scholes model $ 71.82 $ 52.23 $ 71.82 $ 52.23 The ESPP shares are replenished annually on the first day of each fiscal year by virtue of an evergreen provision. The provision allows for share replenishment equal to the lesser of 2.0 million shares or the number of shares which we estimate will be required to be issued under the ESPP during the forthcoming fiscal year. As of December 31, 2021, a total of 2.1 million shares were reserved and available for issuance under the ESPP. Quarterly Cash Dividends On December 1, 2021, we paid a quarterly cash dividend of $1.05 per share to stockholders of record as of the close of business on November 15, 2021. The total amount of regular quarterly cash dividends and dividend equivalents paid during the three months ended December 31, 2021 and 2020 was $159.1 million and 139.6 million, respectively. The total amount of regular quarterly cash dividends and dividend equivalents paid during the six months ended December 31, 2021 and 2020 was $322.0 million and $280.7 million, respectively. The amount of accrued dividend equivalents payable for regular quarterly cash dividends on unvested RSUs with dividend equivalent rights as of December 31, 2021 and June 30, 2021 was $10.4 million and $10.3 million, respectively. These amounts will be paid upon vesting of the underlying RSUs. Non-Controlling Interest We have consolidated the results of Orbograph Ltd. (“Orbograph”), in which we own approximately 94% of the outstanding equity interest. Orbograph is engaged in the development and marketing of character recognition solutions to banks, financial and other payment processing institutions and healthcare providers.

STOCK REPURCHASE PROGRAM

STOCK REPURCHASE PROGRAM	6 Months Ended
	Dec. 31, 2021
Equity [Abstract]
STOCK REPURCHASE PROGRAM	STOCK REPURCHASE PROGRAM Our Board of Directors has authorized a program that permits us to repurchase our common stock. As of June 30, 2021, there was an aggregate of approximately $93 million remaining available for repurchase under previous authorizations, and on July 29, 2021, the Board of Directors authorized an additional $2.00 billion. The intent of this program is to offset the dilution from our equity incentive plans, shares issued in connection with purchases under our ESPP, as well as to return excess cash to our stockholders. Subject to market conditions, applicable legal requirements and other factors, the repurchases were made in the open market in compliance with applicable securities laws, including the Securities Exchange Act of 1934 and the rules promulgated thereunder, such as Rule 10b-18 and, if pursuant to a written plan, Rule 10b5-1. This stock repurchase program has no expiration date and may be suspended at any time. As of December 31, 2021, an aggregate of $1.26 billion was available for repurchase under the stock repurchase program. Share repurchases for the indicated periods (based on the trade date of the applicable repurchase) were as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Number of shares of common stock repurchased 1,104 774 2,294 1,801 Total cost of repurchases $ 429,874 $ 177,492 $ 829,551 $ 371,389

NET INCOME PER SHARE

NET INCOME PER SHARE	6 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
NET INCOME PER SHARE	NET INCOME PER SHARE Basic net income per share is calculated by dividing net income available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income per share is calculated by using the weighted-average number of common shares outstanding during the period, increased to include the number of additional shares of common stock that would have been outstanding if the shares of common stock underlying our outstanding dilutive RSUs had been issued. The dilutive effect of outstanding RSUs is reflected in diluted net income per share by application of the treasury stock method. The following table sets forth the computation of basic and diluted net income per share attributable to KLA: (In thousands, except per share amounts) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Numerator: Net income attributable to KLA $ 717,444 $ 457,251 $ 1,785,861 $ 877,818 Denominator: Weighted-average shares - basic, excluding unvested RSUs 151,251 154,273 151,791 154,777 Effect of dilutive RSUs and options 1,080 1,287 1,095 1,280 Weighted-average shares - diluted 152,331 155,560 152,886 156,057 Basic net income per share attributable to KLA $ 4.74 $ 2.96 $ 11.77 $ 5.67 Diluted net income per share attributable to KLA $ 4.71 $ 2.94 $ 11.68 $ 5.62 Anti-dilutive securities excluded from the computation of diluted net income per share — — 5 —

INCOME TAXES

INCOME TAXES	6 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The following table provides details of income taxes: Three Months Ended December 31, Six Months Ended December 31, (Dollar amounts in thousands) 2021 2020 2021 2020 Income before income taxes $ 926,905 $ 527,402 $ 1,693,253 $ 1,011,208 Provision (benefit) for income taxes $ 209,388 $ 70,419 $ (92,749) $ 134,083 Effective tax rate 22.6 % 13.4 % (5.5) % 13.3 % Our effective tax rate is higher than the U.S. federal statutory rate during the three months ended December 31, 2021 primarily due to a non-recurring tax expense resulting from a new Israel tax law enacted on November 15, 2021; partially offset by the proportion of earnings generated in jurisdictions with tax rates lower than the U.S. statutory rate and the proportion of U.S. earnings eligible for the Foreign Derived Intangible Income deduction. The new Israel tax law limits our ability to maintain our previous assertion that certain historical earnings of our subsidiaries were permanently reinvested in Israel. Given this, we recorded a deferred tax liability and related tax expense of $163.7 million during the three months ended December 31, 2021 for the future Israel income tax due upon repatriation of these historical earnings in accordance with the new Israel tax law. Our effective tax rate is lower than the U.S. federal statutory rate during the six months ended December 31, 2021 primarily due to a non-recurring tax benefit resulting from the intra-entity transfers of certain intellectual property rights (“IP rights”). During the six months ended December 31, 2021, we completed intra-entity transfers of IP rights to one of our Singapore subsidiaries in order to better align the ownership of these rights with how our business operates. The transfers did not result in taxable gains; however, our Singapore subsidiary recognized deferred tax assets for the book and tax basis difference of the eligible transferred IP rights. As a result of these transactions, we recorded deferred tax assets and related tax benefits of $394.5 million, based on the fair value of the eligible IP rights transferred in September 2021. The tax-deductible amortization related to the eligible transferred IP rights will be recognized over 15 years as allowed under Singapore tax law. In the normal course of business, we are subject to examination by tax authorities throughout the world. We are subject to U.S. federal income tax examinations for all years beginning from the fiscal year ended June 30, 2018 and are under United States income tax examination for the fiscal year ended June 30, 2018, June 30, 2019 and June 30, 2020. We are subject to state income tax examinations for all years beginning from the fiscal year ended June 30, 2017. We are also subject to examinations in other major foreign jurisdictions, including Singapore and Israel, for all years beginning from the calendar year ended December 31, 2012. We are under audit in Germany related to Orbotech for the calendar years ended December 31, 2013 to December 31, 2015. It is possible that certain examinations may be concluded in the next 12 months. The timing and resolution of income tax examinations is uncertain. Given the uncertainty around the timing of the resolution of these ongoing examinations, we are unable to estimate the full range of possible adjustments to our unrecognized tax benefits within the next 12 months. In May 2017, Orbotech received an assessment from the Israel Tax Authority (“ITA”) with respect to its fiscal years 2012 through 2014 (the “Assessment”), for an aggregate amount of tax, after offsetting all net operating losses (“NOL”) available through the end of 2014, of approximately NIS 229 million (equivalent to approximately $66 million which includes related interest and linkage differentials to the Israeli consumer price index as of the date of the issuance of the Tax Decrees, as defined below). On August 31, 2018, Orbotech filed an objection in respect of the Assessment (the “Objection”). The ITA completed the second stage of the audit, in which the claims Orbotech raised in the Objection were examined by different personnel at the ITA. In addition, the ITA examined additional items during this second stage of the audit. As Orbotech and the ITA did not reach an agreement during the second stage, the ITA issued Tax Decrees to Orbotech on August 28, 2019 (“Tax Decrees”) for an aggregate amount of tax, after offsetting all NOLs available through the end of 2014, of approximately NIS 257 million (equivalent to approximately $73 million which includes related interest and linkage differentials to the Israeli consumer price index as of the date of the issuance of the Tax Decrees). These Tax Decrees replaced the Assessment. We believe that our recorded unrecognized tax benefits are sufficient to cover the resolution of these Tax Decrees. Orbotech filed a notice of appeal with respect to the above Tax Decrees with the District Court of Tel Aviv on September 26, 2019. On February 27, 2020 the ITA filed its arguments in support of the Tax Decrees. Orbotech filed the grounds of appeal with respect to the above Tax Decrees on July 30, 2020. We are currently in the pre-trial hearing stage of the process. The ITA and Orbotech are continuing discussions in an effort to resolve this matter in a mutually agreeable manner. In connection with the above, there is an ongoing criminal investigation in Israel against Orbotech, certain of its employees and its tax consultant. On April 11, 2018, Orbotech received a “suspect notification letter” (dated March 28, 2018) from the Tel Aviv District Attorney’s Office (Fiscal and Financial). In the letter, it was noted that the investigation file was transferred from the Assessment Investigation Officer to the District Attorney’s Office. The letter further states that the District Attorney’s Office has not yet made a decision regarding submission of an indictment against Orbotech; and that if after studying the case, a decision is made to consider prosecuting Orbotech, Orbotech will receive an additional letter and, within 30 days, Orbotech may present its arguments to the District Attorney’s Office as to why it should not be indicted. On October 27, 2019, we received a request for additional information from the District Attorney ’ s Office. We will continue to monitor the progress of the District Attorney’s Office investigation; however, we cannot anticipate when the review of the case will be completed and what will be the results thereof. We intend to cooperate with the District Attorney’s Office to enable them to conclude their investigation. In December 2020, Orbotech received an assessment from the ITA with respect to its fiscal years 2015 through 2018 (the “Second Assessment”) for an aggregate amount of tax, after offsetting all NOLs available through the end of 2018, of approximately NIS 227 million (equivalent to approximately $68 million which includes related interest and linkage differentials to the Israeli consumer price index as of the date of the issuance of the Second Assessment). We filed an objection to the Second Assessment with the ITA in March 2021. The objection moved the 2015-2018 audit to the second stage, in which the ITA will review the objections. We believe that our recorded unrecognized tax benefits are sufficient to cover the resolution of the Second Assessment.

LITIGATION AND OTHER LEGAL MATT

LITIGATION AND OTHER LEGAL MATTERS	6 Months Ended
	Dec. 31, 2021
Loss Contingency, Information about Litigation Matters [Abstract]
LITIGATION AND OTHER LEGAL MATTERS	LITIGATION AND OTHER LEGAL MATTERSWe are named from time to time as a party to lawsuits and other types of legal proceedings and claims in the normal course of our business. Actions filed against us include commercial, intellectual property, customer, and labor and employment related claims, including complaints of alleged wrongful termination and potential class action lawsuits regarding alleged violations of federal and state wage and hour and other laws. In general, legal proceedings and claims, regardless of their merit, and associated internal investigations (especially those relating to intellectual property or confidential information disputes) are often expensive to prosecute, defend or conduct and may divert management’s attention and other Company resources. Moreover, the results of legal proceedings are difficult to predict, and the costs incurred in litigation can be substantial, regardless of outcome. We believe the amounts provided in our Condensed Consolidated Financial Statements are adequate in light of the probable and estimated liabilities. However, because such matters are subject to many uncertainties and the ultimate outcomes are not predictable, there can be no assurances that the actual amounts required to satisfy alleged liabilities from the matters described above will not exceed the amounts reflected in our Condensed Consolidated Financial Statements or will not have a material adverse effect on our results of operations, financial condition or cash flows.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Factoring. We have factoring agreements with financial institutions to sell certain of our trade receivables and promissory notes from customers without recourse. We do not believe we are at risk for any material losses as a result of these agreements. In addition, we periodically sell certain letters of credit (“LC”), without recourse, received from customers in payment for goods and services. The following table shows total receivables sold under factoring agreements and proceeds from sales of LC for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Receivables sold under factoring agreements $ 79,918 $ 49,917 $ 147,036 $ 138,562 Proceeds from sales of LC $ 19,493 $ 21,709 $ 41,166 $ 40,839 Factoring and LC fees for the sale of certain trade receivables were recorded in other expense (income), net and were not material for the periods presented. Purchase Commitments. We maintain commitments to purchase inventory from our suppliers as well as goods, services and other assets in the ordinary course of business. Our liability under these purchase commitments is generally restricted to a forecasted time-horizon as mutually agreed upon between the parties. This forecasted time-horizon can vary among different suppliers. Our estimate of our significant purchase commitments primarily for material, services, supplies and asset purchases is approximately $2.5 billion as of December 31, 2021, which are primarily due within the next 12 months. Actual expenditures will vary based upon the volume of the transactions and length of contractual service provided. In addition, the amounts paid under these arrangements may be less in the event that the arrangements are renegotiated or canceled. Certain agreements provide for potential cancellation penalties. Cash LTI Plan. As of December 31, 2021, we have committed $245.5 million for future payment obligations under our Cash LTI Plan. The calculation of compensation expense related to the Cash LTI Plan includes estimated forfeiture rate assumptions. Cash LTI awards issued to employees under the Cash LTI Plan vest in three or four equal installments, with one-third or one-fourth of the aggregate amount of the Cash LTI award vesting on each anniversary of the grant date over a three Guarantees and Contingencies. We maintain guarantee arrangements available through various financial institutions for up to $84.7 million, of which $59.5 million had been issued as of December 31, 2021, primarily to fund guarantees to customs authorities for value-added tax and other operating requirements of our subsidiaries in Europe, Israel and Asia. Indemnification Obligations. Subject to certain limitations, we are obligated to indemnify our current and former directors, officers and employees with respect to certain litigation matters and investigations that arise in connection with their service to us. These obligations arise under the terms of our certificate of incorporation, our bylaws, applicable contracts, and Delaware and California law. The obligation to indemnify generally means that we are required to pay or reimburse the individuals’ reasonable legal expenses and possibly damages and other liabilities incurred by several of our current and former directors, officers and employees in connection with these matters. For example, we have paid or reimbursed legal expenses incurred in connection with the investigation of our historical stock option practices and the related litigation and government inquiries. Although the maximum potential amount of future payments we could be required to make under the indemnification obligations generally described in this paragraph is theoretically unlimited, we believe the fair value of this liability, to the extent estimable, is appropriately considered within the reserve we have established for currently pending legal proceedings. We are a party to a variety of agreements pursuant to which we may be obligated to indemnify the other party with respect to certain matters. Typically, these obligations arise in connection with contracts and license agreements or the sale of assets, under which we customarily agree to hold the other party harmless against losses arising therefrom, or provide customers with other remedies to protect against, bodily injury or damage to personal property caused by our products, non-compliance with our product performance specifications, infringement by our products of third-party intellectual property rights and a breach of warranties, representations and covenants related to matters such as title to assets sold, validity of certain intellectual property rights, non-infringement of third-party rights, and certain income tax-related matters. In each of these circumstances, payment by us is typically subject to the other party making a claim to and cooperating with us pursuant to the procedures specified in the particular contract. This usually allows us to challenge the other party’s claims or, in case of breach of intellectual property representations or covenants, to control the defense or settlement of any third-party claims brought against the other party. Further, our obligations under these agreements may be limited in terms of amounts, activity (typically at our option to replace or correct the products or terminate the agreement with a refund to the other party), and duration. In some instances, we may have recourse against third parties and/or insurance covering certain payments made by us. In addition, we may in limited circumstances enter into agreements that contain customer-specific commitments on pricing, tool reliability, spare parts stocking levels, response time and other commitments. Furthermore, we may give these customers limited audit or inspection rights to enable them to confirm that we are complying with these commitments. If a customer elects to exercise its audit or inspection rights, we may be required to expend significant resources to support the audit or inspection, as well as to defend or settle any dispute with a customer that could potentially arise out of such audit or inspection. To date, we have made no significant accruals in our Condensed Consolidated Financial Statements for this contingency. While we have not in the past incurred significant expenses for resolving disputes regarding these types of commitments, we cannot make any assurance that we will not incur any such liabilities in the future. It is not possible to predict the maximum potential amount of future payments under these or similar agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each particular agreement. Historically, payments made by us under these agreements have not had a material effect on our business, financial condition, results of operations or cash flows.

DERIVATIVE INSTRUMENTS AND HEDG

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	6 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIESThe authoritative guidance requires companies to recognize all derivative instruments and hedging activities, including foreign currency exchange contracts and interest rate lock agreements, (collectively, “derivatives”) as either assets or liabilities at fair value on the Condensed Consolidated Balance Sheets. In accordance with the accounting guidance, we designate foreign currency exchange contracts and interest rate lock agreements as cash flow hedges of certain forecasted foreign currency denominated sales, purchase and spending transactions, and the benchmark interest rate of the corresponding debt financing, respectively. In accordance with the accounting guidance, we also designate foreign currency exchange contracts to hedge a portion of our investment in a foreign denominated subsidiary. Our foreign subsidiaries operate and sell our products in various global markets. As a result, we are exposed to risks relating to changes in foreign currency exchange rates. We utilize foreign currency forward exchange contracts and option contracts to hedge against future movements in foreign currency exchange rates that affect certain existing and forecasted foreign currency denominated sales and purchase transactions, such as the Japanese yen, the euro, the pound sterling and the Israeli new shekel. We routinely hedge our exposures to certain foreign currencies with various financial institutions in an effort to minimize the impact of certain currency exchange rate fluctuations. These currency forward exchange contracts and options, designated as cash flow hedges, generally have maturities of less than 18 months. Cash flow hedges are evaluated for effectiveness monthly, based on changes in total fair value of the derivatives. If a financial counterparty to any of our hedging arrangements experiences financial difficulties or is otherwise unable to honor the terms of the foreign currency hedge, we may experience material losses. In January 2020, we entered into a series of forward contracts (the “2020 Rate Lock Agreements”) with a notional amount of $350.0 million in aggregate to lock the benchmark interest rate on a portion of the 2020 Senior Notes. The 2020 Rate Lock Agreements were terminated on the date of the pricing of the 2020 Senior Notes and we recorded the fair value of $21.5 million as a loss within AOCI as of March 31, 2020, which is being amortized over the life of the debt. We entered into similar forward contracts in prior years to lock the benchmark interest rates prior to expected debt issuances, for which the original fair values of $13.6 million loss in fiscal 2019 and $7.5 million gain in fiscal 2015 were recognized in AOCI, and are being amortized to interest expense over the lives of the associated debt. We recognized net expenses of $0.3 million and $0.6 million for the three and six months ended December 31, 2021, respectively, and net expenses of $0.3 million and $0.6 million for the three and six months ended December 31, 2020, respectively, for the amortization of the net of the three rate lock agreements that had been recognized in AOCI, which increased the interest expense on a net basis. As of December 31, 2021, the aggregate unamortized portion of the fair value of the forward contracts for the Rate Lock Agreements was $28.4 million. For derivatives that are designated and qualify as cash flow hedges, the effective portion of the gains or losses is reported in AOCI and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Prior to adopting the new accounting guidance for hedge accounting, time value was excluded from the assessment of effectiveness for derivatives designated as cash flow hedges. Time value was amortized on a mark-to-market basis and recognized in earnings over the life of the derivative contract. For derivative contracts executed after adopting the new accounting guidance, the election to include time value for the assessment of effectiveness is made on all forward contracts designated as cash flow hedges. The change in fair value of the derivative is recorded in AOCI until the hedged item is recognized in earnings. The assessment of effectiveness of options contracts designated as cash flow hedges continues to exclude time value after adopting the new accounting guidance. The initial value of the component excluded from the assessment of effectiveness is recognized in earnings over the life of the derivative contract. Any difference between change in the fair value of the excluded components and the amounts recognized in earnings are recorded in AOCI. For derivatives that are designated and qualify as a net investment hedge in a foreign operation and that meet the effectiveness requirements, the net gains or losses attributable to changes in spot exchange rates are recorded in cumulative translation within AOCI. The remainder of the change in value of such instruments is recorded in earnings using the mark-to-market approach. Recognition in earnings of amounts previously recorded in cumulative translation is limited to circumstances such as complete or substantially complete liquidation or sale of the net investment in the hedged foreign operations. For derivatives that are not designated as hedges, gains and losses are recognized in other expense (income), net. We use foreign currency forward contracts to hedge certain foreign currency denominated assets or liabilities. The gains and losses on these derivative instruments are largely offset by the changes in the fair value of the assets or liabilities being hedged. Derivatives Designated in Hedging Relationships: Foreign Exchange and Interest Rate Contracts The gains (losses) on derivatives in cash flow and net investment hedging relationships recognized in other comprehensive income for the indicated periods were as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Derivatives Designated as Cash Flow Hedging Instruments: Foreign exchange contracts: Amounts included in the assessment of effectiveness $ 6,749 $ (1,310) $ 7,602 $ (2,182) Amounts excluded from the assessment of effectiveness $ (8) $ (47) $ (9) $ (93) Derivatives Designated as Net Investment Hedging Instruments: Foreign exchange contracts (1) : $ (293) $ — $ 357 $ — __________________ (1) No amounts were reclassified from AOCI into earnings related to the sale of a subsidiary, as there were no such sales during the periods presented. The locations and amounts of designated and non-designated derivatives’ gains and losses reported in the Condensed Consolidated Statements of Operations for the indicated periods were as follows: Three Months Ended December 31, Three Months Ended December 31, 2021 2020 (In thousands) Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Total amounts presented in the Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded $ 2,352,630 $ 1,386,672 $ 37,852 $ 1,201 $ 1,650,870 $ 1,080,706 $ 38,880 $ 3,882 Gains (Losses) on Derivatives Designated as Hedging Instruments: Rate lock agreements: Amount of gains (losses) reclassified from AOCI to earnings $ — $ — $ (279) $ — $ — $ — $ (279) $ — Foreign exchange contracts: Amount of gains (losses) reclassified from AOCI to earnings $ 1,643 $ (348) $ — $ — $ (560) $ (125) $ — $ — Amount excluded from the assessment of effectiveness recognized in earnings $ (104) $ — $ — $ 658 $ (151) $ — $ — $ — Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Amount of gains (losses) recognized in earnings $ — $ — $ — $ 5,994 $ — $ — $ — $ 2,661 Six Months Ended December 31, Six Months Ended December 31, 2021 2020 (In thousands) Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Total amounts presented in the Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded $ 4,436,468 $ 2,651,710 $ 76,164 $ 15,341 $ 3,189,490 $ 2,092,937 $ 78,266 $ 7,079 Gains (Losses) on Derivatives Designated as Hedging Instruments: Rate lock agreements: Amount of gains (losses) reclassified from AOCI to earnings $ — $ — $ (558) $ — $ — $ — $ (558) $ — Foreign exchange contracts: Amount of gains (losses) reclassified from AOCI to earnings $ 3,486 $ (580) $ — $ — $ (650) $ 425 $ — $ — Amount excluded from the assessment of effectiveness recognized in earnings $ (218) $ — $ — $ 1,315 $ (278) $ — $ — $ — Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Amount of gains (losses) recognized in earnings $ — $ — $ — $ 7,063 $ — $ — $ — $ (2,937) The U.S. dollar equivalent of all outstanding notional amounts of foreign currency hedge contracts, with maximum remaining maturities of approximately eleven months as of the dates indicated below, were as follows: As of As of (In thousands) December 31, 2021 June 30, 2021 Cash flow hedge contracts - foreign currency Purchase $ 125,914 $ 12,550 Sell $ 177,766 $ 134,845 Net Investment hedge contracts - foreign currency Sell $ 66,848 $ 66,848 Other foreign currency hedge contracts Purchase $ 386,460 $ 264,292 Sell $ 342,420 $ 278,635 The locations and fair value of our derivatives reported in our Condensed Consolidated Balance Sheets as of the dates indicated below were as follows: Asset Derivatives Liability Derivatives Balance Sheet As of As of Balance Sheet As of As of Location December 31, 2021 June 30, 2021 Location December 31, 2021 June 30, 2021 (In thousands) Fair Value Fair Value Derivatives designated as hedging instruments Foreign exchange contracts Other current assets $ 8,057 $ 3,940 Other current liabilities $ (175) $ 272 Total derivatives designated as hedging instruments 8,057 3,940 (175) 272 Derivatives not designated as hedging instruments Foreign exchange contracts Other current assets 5,982 4,312 Other current liabilities (3,642) 2,535 Total derivatives not designated as hedging instruments 5,982 4,312 (3,642) 2,535 Total derivatives $ 14,039 $ 8,252 $ (3,817) $ 2,807 The changes in AOCI, before taxes, related to derivatives for the indicated periods were as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Beginning AOCI $ (25,546) $ (30,574) $ (25,830) $ (29,602) Amount reclassified to earnings as net (gains) losses (912) 1,115 (2,130) 1,061 Net change in unrealized gains (losses) 5,627 (1,357) 7,129 (2,275) Ending AOCI $ (20,831) $ (30,816) $ (20,831) $ (30,816) Offsetting of Derivative Assets and Liabilities We present derivatives at gross fair values in the Condensed Consolidated Balance Sheets. We have entered into arrangements with each of our counterparties, which reduce credit risk by permitting net settlement of transactions with the same counterparty under certain conditions. The information related to the offsetting arrangements for the periods indicated was as follows (in thousands): As of December 31, 2021 Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Derivatives - Assets $ 14,039 $ — $ 14,039 $ (3,427) $ — $ 10,612 Derivatives - Liabilities $ (3,817) $ — $ (3,817) $ 3,427 $ — $ (390) As of June 30, 2021 Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Derivatives - Assets $ 8,252 $ — $ 8,252 $ (2,492) $ — $ 5,760 Derivatives - Liabilities $ (2,807) $ — $ (2,807) $ 2,492 $ — $ (315)

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	6 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS During the three and six months ended December 31, 2021 and 2020, we purchased from, or sold to, several entities where one or more of our executive officers or members of our Board of Directors or their immediate family members were, during the periods presented, an executive officer or a board member of a subsidiary, or in the case of The Vanguard Group, Inc., together with its affiliates, beneficially owns more than 10% of our outstanding stock, including Ansys, Inc., Citrix Systems, Inc., HP Inc., Keysight Technologies, Inc., and for the three and six months ended December 31, 2020 Proofpoint, Inc. The following table provides the transactions with these parties for the indicated periods (for the portion of such period that they were considered related): Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Total revenues $ 264 $ 324 $ 623 $ 638 Total purchases $ 193 $ 279 $ 272 $ 571

SEGMENT REPORTING AND GEOGRAPHI

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION	6 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
SEGMENT REPORTING AND GEOGRAPHIC INFORMATION	SEGMENT REPORTING AND GEOGRAPHIC INFORMATION ASC 280, Segment Reporting, establishes standards for reporting information about operating segments. Operating segments are defined as components of an enterprise about which separate financial information is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. Our CODM is our Chief Executive Officer. We have four reportable segments: Semiconductor Process Control (“SPC”); Specialty Semiconductor Process; Printed Circuit Board (“PCB”), Display and Component Inspection; and Other. The reportable segments are determined based on several factors including, but not limited to, customer base, homogeneity of products, technology, delivery channels and similar economic characteristics. Semiconductor Process Control The SPC segment offers a comprehensive portfolio of inspection, metrology and data analytics products, and related service, which helps integrated circuit ("IC") manufacturers achieve target yield throughout the entire semiconductor fabrication process – from R&D to final volume production. Our differentiated products and services are designed to provide comprehensive solutions that help our customers accelerate development and production ramp cycles, achieve higher and more stable semiconductor die yields and improve their overall profitability. This reportable segment is comprised of two operating segments, Wafer Inspection and Patterning and GSS. Specialty Semiconductor Process The Specialty Semiconductor Manufacturing segment develops and sells advanced vacuum deposition and etching process tools, which are used by a broad range of specialty semiconductor customers, including manufacturers of microelectromechanical systems, radio frequency communication chips and power semiconductors for automotive and industrial applications. This reportable segment is comprised of one operating segment. PCB, Display and Component Inspection The PCB, Display and Component Inspection segment enables electronic device manufacturers to inspect, test and measure PCBs, flat panel displays and ICs to verify their quality, pattern the desired electronic circuitry on the relevant substrate and perform three-dimensional shaping of metalized circuits on multiple surfaces. This segment also engages in the development and marketing of character recognition solutions to banks, financial and other payment processing institutions and healthcare providers. This reportable segment is comprised of two operating segments, PCB and Display and Component Inspection. Other The Other segment is comprised of one operating segment. During the fourth quarter of fiscal 2020, we entered into an Asset Purchase Agreement to sell certain core assets of our non-strategic solar energy business, which accounted for the majority of our Other reportable segment. The sale was completed in the first quarter of fiscal 2021. The CODM assesses the performance of each operating segment and allocates resources to those segments based on total revenues and segment gross profit and does not evaluate the segments using discrete asset information. Segment gross profit excludes corporate allocations and effects of foreign currency exchange rates, amortization of intangible assets, amortization of inventory fair value adjustments, and transaction costs associated with our acquisitions related to costs of revenues. The following is a summary of results for each of our four reportable segments for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 SPC: Revenues $ 2,052,202 $ 1,380,184 $ 3,831,285 $ 2,648,138 Segment gross profit 1,342,937 884,090 2,504,866 1,698,900 Specialty Semiconductor Process: Revenues 112,738 90,587 214,767 179,540 Segment gross profit 60,274 51,171 114,995 101,099 PCB, Display and Component Inspection: Revenues 187,977 179,267 390,785 360,444 Segment gross profit 82,322 84,584 176,798 174,753 Other: Revenues — 449 — 590 Segment gross profit — (121) — (108) Totals: Revenues for reportable segments $ 2,352,917 $ 1,650,487 $ 4,436,837 $ 3,188,712 Segment gross profit $ 1,485,533 $ 1,019,724 $ 2,796,659 $ 1,974,644 The following table reconciles total revenues for reportable segments to total revenues for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Total revenues for reportable segments $ 2,352,917 $ 1,650,487 $ 4,436,837 $ 3,188,712 Corporate allocations and effects of changes in foreign currency exchange rates (287) 383 (369) 778 Total revenues $ 2,352,630 $ 1,650,870 $ 4,436,468 $ 3,189,490 The following table reconciles total segment gross profit to total income before income taxes for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Total segment gross profit $ 1,485,533 $ 1,019,724 $ 2,796,659 $ 1,974,644 Acquisition-related charges, corporate allocations, and effects of changes in foreign currency exchange rates (1) 41,065 38,587 81,977 75,449 R&D 265,031 229,064 523,184 448,102 SG&A 213,479 181,909 406,740 354,540 Interest expense 37,852 38,880 76,164 78,266 Other expense (income), net 1,201 3,882 15,341 7,079 Income before income taxes $ 926,905 $ 527,402 $ 1,693,253 $ 1,011,208 __________________ (1) Acquisition-related charges primarily include amortization of intangible assets and amortization of inventory fair value adjustments presented as part of costs of revenues. Our significant operations outside the United States include manufacturing facilities in China, Germany, Israel and Singapore and sales, marketing and service offices in Japan, the rest of the Asia Pacific region and Europe. For geographical revenue reporting, revenues are attributed to the geographic location in which the customer is located. Long-lived assets consist of land, property and equipment, net, and are attributed to the geographic region in which they are located. The following is a summary of revenues by geographic region, based on ship-to location, for the indicated periods: (Dollar amounts in thousands) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Revenues: Taiwan $ 776,442 33 % $ 380,785 23 % $ 1,403,526 31 % $ 749,886 24 % China 544,537 23 % 382,157 23 % 1,229,693 28 % 868,246 27 % Korea 323,095 14 % 347,947 21 % 562,278 13 % 537,465 17 % North America 271,594 12 % 214,808 13 % 449,334 10 % 384,984 12 % Japan 196,282 8 % 156,721 10 % 371,449 8 % 321,140 10 % Europe and Israel 175,195 7 % 100,201 6 % 262,635 6 % 183,318 6 % Rest of Asia 65,485 3 % 68,251 4 % 157,553 4 % 144,451 4 % Total $ 2,352,630 100 % $ 1,650,870 100 % $ 4,436,468 100 % $ 3,189,490 100 % The following is a summary of revenues by major product categories for the indicated periods: (Dollar amounts in thousands) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Revenues: Wafer Inspection $ 1,104,032 48 % $ 687,030 42 % $ 1,991,544 45 % $ 1,206,581 38 % Patterning 508,785 22 % 307,512 19 % 948,376 21 % 678,444 21 % Specialty Semiconductor Process 104,932 4 % 71,978 4 % 198,052 4 % 146,005 5 % PCB, Display and Component Inspection 121,750 5 % 115,825 7 % 259,637 6 % 236,451 7 % Services 456,861 19 % 412,847 25 % 910,811 21 % 805,972 25 % Other 56,270 2 % 55,678 3 % 128,048 3 % 116,037 4 % Total $ 2,352,630 100 % $ 1,650,870 100 % $ 4,436,468 100 % $ 3,189,490 100 % Wafer Inspection and Patterning products are offered in the SPC segment. Services are offered in multiple segments. Other includes primarily refurbished systems, remanufactured legacy systems, and enhancements and upgrades for previous-generation products that are part of the SPC segment. In the three months ended December 31, 2021, two customers accounted for approximately 26% and 10% of total revenues. In the three months ended December 31, 2020 two customers each accounted for approximately 14% of total revenues. In the six months ended December 31, 2021, one customer accounted for approximately 25% of total revenues. In the six months ended December 31, 2020, two customers accounted for approximately 14% and 13% of total revenues. One customer on an individual basis accounted for greater than 10% of net accounts receivable at December 31, 2021 and at June 30, 2021, respectively. Land, property and equipment, net by geographic region as of the dates indicated below were as follows: As of As of (In thousands) December 31, 2021 June 30, 2021 Land, property and equipment, net: United States $ 490,597 $ 447,359 Singapore 79,880 76,882 Israel 65,269 57,403 Europe 55,262 56,895 Rest of Asia 26,170 24,488 Total $ 717,178 $ 663,027

RESTRUCTURING CHARGES

RESTRUCTURING CHARGES	6 Months Ended
	Dec. 31, 2021
Restructuring and Related Activities [Abstract]
RESTRUCTURING CHARGES	RESTRUCTURING CHARGESFrom time to time, management approves restructuring plans including workforce reductions in an effort to streamline operations.Restructuring charges were $0.5 million and $4.6 million for the three months ended December 31, 2021 and 2020, respectively. Restructuring charges were $0.9 million and $8.1 million for the six months ended December 31, 2021 and 2020, respectively. Restructuring charges for the three and six months ended December 31, 2020, included $1.0 million and $2.0 million, respectively, of non-cash charges for accelerated depreciation related to certain right-of-use assets and fixed assets to be abandoned. As of December 31, 2021 and June 30, 2021, the accrual for restructuring charges was $2.9 million and $3.3 million, respectively.

BASIS OF PRESENTATION (Policies

BASIS OF PRESENTATION (Policies)	6 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation. For purposes of this report, “KLA,” the “Company,” “we,” “our,” “us,” or similar references mean KLA Corporation and its majority-owned subsidiaries unless the context requires otherwise. The Condensed Consolidated Financial Statements have been prepared by us pursuant to the rules and regulations of the U.S. Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. The unaudited interim Condensed Consolidated Financial Statements do not include all of the information and footnotes required by GAAP for audited financial statements. The balance sheet as of June 30, 2021 was derived from the Company’s audited Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021 but does not include all disclosures required by GAAP for audited financial statements. The unaudited interim Condensed Consolidated Financial Statements reflect all adjustments (consisting only of normal, recurring adjustments) necessary for a fair statement of the financial position, results of operations, comprehensive income, stockholders’ equity and cash flows for the periods indicated. These Condensed Consolidated Financial Statements and notes, however, should be read in conjunction with Item 8 “Financial Statements and Supplementary Data” included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021. The Condensed Consolidated Financial Statements include the accounts of KLA and its majority-owned subsidiaries. All significant intercompany balances and transactions have been eliminated. The results of operations for the three and six months ended December 31, 2021 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year ending June 30, 2022.
Management Estimates	Management Estimates. The preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions in applying our accounting policies that affect the reported amounts of assets and liabilities (and related disclosure of contingent assets and liabilities) at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses for the reporting periods. Actual results could differ from those estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In October 2021, Financial Accounting Standards Board (“FASB”) issued authoritative guidance that requires companies to apply revenue guidance to recognize and measure contract assets and contract liabilities from contracts with customers acquired in a business combination at carrying value. Under the current business combination guidance, such assets and liabilities are recognized by the acquirer at fair value on the acquisition date. This update is effective for us in the first quarter of our fiscal year ending June 30, 2024 and should be applied on a prospective basis. Early adoption is permitted. We are currently evaluating the impact of this guidance on our condensed consolidated financial statements. Recently Adopted In December 2019, the FASB issued an Accounting Standards Update (“ASU”) to simplify the accounting for income taxes in Accounting Standards Codification (“ASC”) 740, Income Taxes (“ASC 740”). This amendment removes certain exceptions and improves consistent application of accounting principles for certain areas in ASC 740. We adopted this update beginning in the first quarter of our fiscal year ending June 30, 2022 on a prospective basis and the adoption had no material impact on our Condensed Consolidated Financial Statements. In August 2020, the FASB issued an ASU to simplify the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The standard eliminates beneficial conversion features and cash conversion models resulting in more convertible instruments being accounted for as a single unit, and modifies the guidance on the computation of earnings per share for convertible instruments and contracts on an
Fair Value Measurements	Our financial assets and liabilities are measured and recorded at fair value, except for our debt and certain equity investments in privately held companies. Equity investments without a readily available fair value are accounted for using the measurement alternative. The measurement alternative is calculated as cost minus impairment, if any, plus or minus changes resulting from observable price changes. See Note 8 “Debt” to our Condensed Consolidated Financial Statements for disclosure of the fair value of our Senior Notes. Our non-financial assets, such as goodwill, intangible assets, and land, property and equipment, are assessed for impairment when an event or circumstance indicates that an other-than-temporary decline in value may have occurred.
Fair Value of Financial Instruments	Fair Value of Financial Instruments. We have evaluated the estimated fair value of financial instruments using available market information and valuations as provided by third-party sources. The use of different market assumptions and/or estimation methodologies could have a significant effect on the estimated fair value amounts. The fair value of our cash equivalents, accounts receivable, accounts payable and other current assets and liabilities approximate their carrying amounts due to the relatively short maturity of these items. Fair Value Hierarchy. The authoritative guidance for fair value measurements establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below: Level 1 Valuations based on quoted prices in active markets for identical assets or liabilities that the entity has the ability to access. Level 2 Valuations based on quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable data for substantially the full term of the assets or liabilities. Level 3 Valuations based on inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Besides the transfer listed in the table below, there were no other transfers between Level 1, Level 2 and Level 3 fair value measurements during the six months ended December 31, 2021. The types of instruments valued based on quoted market prices in active markets include money market funds, certain U.S. Treasury securities, U.S. Government agency securities and equity securities. Such instruments are generally classified within Level 1 of the fair value hierarchy. The types of instruments valued based on other observable inputs include corporate debt securities, sovereign securities, municipal securities, and certain U.S. Treasury securities. The market inputs used to value these instruments generally consist of market yields, reported trades and broker/dealer quotes. Such instruments are generally classified within Level 2 of the fair value hierarchy. The principal market in which we execute our foreign currency contracts is the institutional market in an over-the-counter environment with a relatively high level of price transparency. The market participants generally are large financial institutions. Our foreign currency contracts’ valuation inputs are based on quoted prices and quoted pricing intervals from public data sources and do not involve management judgment. These contracts are typically classified within Level 2 of the fair value hierarchy.

REVENUE (Tables)

REVENUE (Tables)	6 Months Ended
	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Schedule of Contract Balances	The following table represents the opening and closing balances of accounts receivable, net, contract assets and contract liabilities as of the indicated dates. As of As of (Dollar amounts in thousands) December 31, 2021 June 30, 2021 $ Change % Change Accounts receivable, net $ 1,728,376 $ 1,305,479 $ 422,897 32 % Contract assets $ 96,676 $ 91,052 $ 5,624 6 % Contract liabilities $ 842,880 $ 667,703 $ 175,177 26 %

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the date indicated below, were presented on our Condensed Consolidated Balance Sheets as follows: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Little or No Market Activity Inputs As of December 31, 2021 (In thousands) Total (Level 1) (Level 2) (Level 3) Assets Cash equivalents: Money market funds and other $ 776,782 $ 776,782 $ — $ — Marketable securities: Corporate debt securities 479,974 — 479,974 — Municipal securities 67,268 — 67,268 — Sovereign securities 5,031 — 5,031 — U.S. Government agency securities 121,089 121,089 — — U.S. Treasury securities 294,380 288,082 6,298 — Equity securities (1) 21,033 21,033 — — Total cash equivalents and marketable securities (2) 1,765,557 1,206,986 558,571 — Other current assets: Derivative assets 14,039 — 14,039 — Other non-current assets: Executive Deferred Savings Plan 274,529 208,307 66,222 — Total financial assets (2) $ 2,054,125 $ 1,415,293 $ 638,832 $ — Liabilities Derivative liabilities $ (3,817) $ — $ (3,817) $ — Deferred payments (4,700) — — (4,700) Contingent consideration payable (23,177) — — (23,177) Total financial liabilities $ (31,694) $ — $ (3,817) $ (27,877) ________________ (1) Transfer from Level 2 to Level 1 as the security specific restriction expired during the first quarter of the fiscal year ending June 30, 2022. (2) Excludes cash of $783.0 million held in operating accounts and time deposits of $261.9 million (of which $97.3 million were cash equivalents) as of December 31, 2021. Financial assets (excluding cash held in operating accounts and time deposits) and liabilities measured at fair value on a recurring basis, as of the date indicated below, were presented on our Condensed Consolidated Balance Sheets as follows: Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Little or No Market Activity Inputs As of June 30, 2021 (In thousands) Total (Level 1) (Level 2) (Level 3) Assets Cash equivalents: Money market funds and other $ 691,375 $ 691,375 $ — $ — Marketable securities: Corporate debt securities 468,746 — 468,746 — Municipal securities 70,228 — 70,228 — Sovereign securities 3,052 — 3,052 — U.S. Government agency securities 145,921 145,921 — — U.S. Treasury securities 233,064 205,055 28,009 — Equity securities 29,930 — 29,930 — Total cash equivalents and marketable securities (1) 1,642,316 1,042,351 599,965 — Other current assets: Derivative assets 8,252 — 8,252 — Other non-current assets: Executive Deferred Savings Plan 266,199 200,925 65,274 — Total financial assets (1) $ 1,916,767 $ 1,243,276 $ 673,491 $ — Liabilities Derivative liabilities $ (2,807) $ — $ (2,807) $ — Deferred payments (4,550) — — (4,550) Contingent consideration payable (8,514) — — (8,514) Total financial liabilities $ (15,871) $ — $ (2,807) $ (13,064) ________________ (1) Excludes cash of $641.6 million held in operating accounts and time deposits of $210.6 million (of which $101.7 million were cash equivalents) as of June 30, 2021.

FINANCIAL STATEMENT COMPONENTS

FINANCIAL STATEMENT COMPONENTS (Tables)	6 Months Ended
	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Balance Sheet Components	Condensed Consolidated Balance Sheets As of As of (In thousands) December 31, 2021 June 30, 2021 Accounts receivable, net: Accounts receivable, gross $ 1,747,734 $ 1,323,515 Allowance for credit losses (19,358) (18,036) $ 1,728,376 $ 1,305,479 Inventories: Customer service parts $ 371,341 $ 349,743 Raw materials 786,744 595,151 Work-in-process 427,972 453,432 Finished goods 243,355 177,054 $ 1,829,412 $ 1,575,380 Other current assets: Contract assets $ 96,676 $ 91,052 Deferred costs of revenues 83,153 59,953 Prepaid expenses 78,064 76,649 Prepaid income and other taxes 37,731 68,847 Other current assets 37,602 24,366 $ 333,226 $ 320,867 Land, property and equipment, net: Land $ 67,862 $ 67,862 Buildings and leasehold improvements 469,025 458,605 Machinery and equipment 756,921 743,710 Office furniture and fixtures 33,067 32,856 Construction-in-process 236,543 182,320 1,563,418 1,485,353 Less: accumulated depreciation (846,240) (822,326) $ 717,178 $ 663,027 Other non-current assets: Executive Deferred Savings Plan (1) $ 274,529 $ 266,199 Operating lease right of use assets 97,836 102,883 Other non-current assets 78,580 75,823 $ 450,945 $ 444,905 Other current liabilities: Compensation and benefits $ 500,301 $ 305,445 Customer credits and advances 482,991 250,784 Executive Deferred Savings Plan (1) 274,508 268,028 Other accrued expenses 184,347 180,982 Income taxes payable 125,535 87,320 Interest payable 35,970 36,135 Operating lease liabilities 32,467 32,322 $ 1,636,119 $ 1,161,016 Other non-current liabilities: Income taxes payable $ 340,890 $ 333,866 Pension liabilities 85,677 87,602 Operating lease liabilities 62,553 70,739 Other non-current liabilities 161,693 139,083 $ 650,813 $ 631,290 ________________ (1) We have a non-qualified deferred compensation plan (known as “Executive Deferred Savings Plan” or “EDSP”) under which certain employees and non-employee directors may defer a portion of their compensation. The expense associated with changes in the EDSP liability included in selling, general and administrative (“SG&A”) expense was $12.0 million and $22.1 million during the three months ended December 31, 2021 and 2020, respectively and was $11.0 million and $35.3 million during the six months ended December 31, 2021 and 2020, respectively. The amount of net gains associated with changes in the EDSP assets included in SG&A expense was $11.8 million and $22.2 million during the three months ended December 31, 2021 and 2020, respectively and was $10.7 million and $35.5 million during the six months ended December 31, 2021 and 2020, respectively. For additional details, refer to Note 1 “Description of Business and Summary of Significant Accounting Policies” to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2021.
Schedule of Components of Accumulated Other Comprehensive Income (Loss)	The components of AOCI as of the dates indicated below were as follows: (In thousands) Currency Translation Adjustments Unrealized Gains (Losses) on Available-for-Sale Securities Unrealized Gains (Losses) on Derivatives Unrealized Gains (Losses) on Defined Benefit Plans Total Balance as of December 31, 2021 $ (36,314) $ (2,223) $ (15,653) $ (22,289) $ (76,479) Balance as of June 30, 2021 $ (32,563) $ 595 $ (20,092) $ (23,497) $ (75,557)
Schedule of Reclassification out of Accumulated Other Comprehensive Income	The effects on net income (loss) of amounts reclassified from AOCI to the Condensed Consolidated Statements of Operations for the indicated period were as follows (in thousands): AOCI Components Three Months Ended Six Months Ended Location in the Condensed Consolidated December 31, December 31, Statement of Operations 2021 2020 2021 2020 Unrealized gains (losses) on cash flow hedges from foreign exchange and interest rate contracts Revenues $ 1,539 $ (711) $ 3,268 $ (928) Costs of revenues and operating expenses (348) (125) (580) 425 Interest expense (279) (279) (558) (558) Net gains (losses) reclassified from AOCI $ 912 $ (1,115) $ 2,130 $ (1,061) Unrealized gains (losses) on available-for-sale securities Other expense (income), net $ (3) $ 111 $ (2) $ 212

MARKETABLE SECURITIES (Tables)

MARKETABLE SECURITIES (Tables)	6 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of Marketable Securities	The amortized cost and fair value of marketable securities as of the dates indicated below were as follows: As of December 31, 2021 (In thousands) Amortized Gross Gross Fair Corporate debt securities $ 481,191 $ 95 $ (1,312) $ 479,974 Money market funds and other 776,782 — — 776,782 Municipal securities 67,501 14 (247) 67,268 Sovereign securities 5,036 5 (10) 5,031 U.S. Government agency securities 121,255 58 (224) 121,089 U.S. Treasury securities 295,590 4 (1,214) 294,380 Equity securities (1) 3,211 17,822 — 21,033 Subtotal 1,750,566 17,998 (3,007) 1,765,557 Add: Time deposits (2) 261,942 — — 261,942 Less: Cash equivalents 874,095 — — 874,095 Marketable securities $ 1,138,413 $ 17,998 $ (3,007) $ 1,153,404 As of June 30, 2021 (In thousands) Amortized Gross Gross Fair Corporate debt securities $ 468,192 $ 689 $ (135) $ 468,746 Money market funds and other 691,375 — — 691,375 Municipal securities 70,155 106 (33) 70,228 Sovereign securities 3,045 7 — 3,052 U.S. Government agency securities 145,810 160 (49) 145,921 U.S. Treasury securities 233,052 129 (117) 233,064 Equity securities (1) 3,211 26,719 — 29,930 Subtotal 1,614,840 27,810 (334) 1,642,316 Add: Time deposits (2) 210,636 — — 210,636 Less: Cash equivalents 793,040 — — 793,040 Marketable securities $ 1,032,436 $ 27,810 $ (334) $ 1,059,912 ________________ (1) Unrealized gains on equity securities included in our portfolio include the initial fair value adjustment recorded upon a security becoming marketable. (2) Time deposits excluded from fair value measurements.
Schedule of Investments with Gross Unrealized Losses	The following table summarizes the fair value and gross unrealized losses of our investments that were in an unrealized loss position as of the date indicated below, none of which were in a continuous loss position for 12 months or more: As of December 31, 2021 (In thousands) Fair Value Gross Corporate debt securities $ 383,964 $ (1,312) Sovereign securities 1,993 (10) Municipal securities 60,649 (247) U.S. Government agency securities 66,225 (224) U.S. Treasury securities 278,686 (1,214) Total $ 791,517 $ (3,007) As of June 30, 2021 (In thousands) Fair Value Gross Corporate debt securities $ 161,012 $ (135) Municipal securities 21,605 (33) U.S. Government agency securities 38,904 (49) U.S. Treasury securities 117,761 (117) Total $ 339,282 $ (334)
Schedule of Contractual Maturities of Securities	The contractual maturities of securities classified as available-for-sale, regardless of their classification on our Condensed Consolidated Balance Sheets, as of the date indicated below were as follows: As of December 31, 2021 (In thousands) Amortized Cost Fair Value Due within one year $ 519,562 $ 537,300 Due after one year through three years 618,851 616,104 Total $ 1,138,413 $ 1,153,404

GOODWILL AND PURCHASED INTANG_2

GOODWILL AND PURCHASED INTANGIBLE ASSETS (Tables)	6 Months Ended
	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill Balances	The following table presents changes in goodwill carrying value during the six months ended December 31, 2021 (1) : (In thousands) Wafer Inspection and Patterning Global Service and Support ( “ GSS ” ) Specialty Semiconductor Process PCB and Display Component Inspection Total Balance as of June 30, 2021 $ 416,860 $ 25,908 $ 681,858 $ 872,971 $ 13,575 $ 2,011,172 Acquired goodwill 31,621 — — — — 31,621 Foreign currency adjustments 1 — — — — 1 Balance as of December 31, 2021 $ 448,482 $ 25,908 $ 681,858 $ 872,971 $ 13,575 $ 2,042,794 _________________ (1) No goodwill was assigned to the Other reporting unit and, accordingly, it was excluded from the table above.
Schedule of Components of Purchased Intangible Assets	The components of purchased intangible assets as of the dates indicated below were as follows: (In thousands) As of December 31, 2021 As of June 30, 2021 Category Range of Useful Lives (in years) Gross Accumulated Net Gross Accumulated Net Existing technology 4-8 $ 1,400,191 $ 581,249 $ 818,942 $ 1,382,612 $ 499,219 $ 883,393 Customer relationships 4-9 313,317 148,452 164,865 305,817 131,386 174,431 Trade name / Trademark 4-7 117,983 60,707 57,276 117,383 53,493 63,890 Backlog and other <1-9 52,836 50,522 2,314 50,403 49,962 441 Intangible assets subject to amortization 1,884,327 840,930 1,043,397 1,856,215 734,060 1,122,155 In-process research and development 67,656 6,062 61,594 63,256 100 63,156 Total $ 1,951,983 $ 846,992 $ 1,104,991 $ 1,919,471 $ 734,160 $ 1,185,311
Schedule of Amortization Expense for Purchased Intangible Assets	Amortization expense for purchased intangible assets for the periods indicated below was as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Amortization expense - Costs of revenues $ 41,124 $ 38,738 $ 82,248 $ 75,778 Amortization expense - SG&A 12,389 12,301 24,778 25,730 Amortization expense - Research and development 31 31 62 62 Total $ 53,544 $ 51,070 $ 107,088 $ 101,570
Schedule of Remaining Estimated Amortization Expense	Based on the purchased intangible assets gross carrying amount recorded as of December 31, 2021, the remaining estimated annual amortization expense is expected to be as follows: Fiscal year ending June 30: Amortization (In thousands) 2022 (remaining six months) $ 107,197 2023 212,659 2024 209,665 2025 197,596 2026 182,271 2027 and thereafter 134,009 Total $ 1,043,397

DEBT (Tables)

DEBT (Tables)	6 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Debt	The following table summarizes our debt as of December 31, 2021 and June 30, 2021: As of December 31, 2021 As of June 30, 2021 Amount Effective Amount Effective Fixed-rate 4.650% Senior Notes due on November 1, 2024 $ 1,250,000 4.682 % $ 1,250,000 4.682 % Fixed-rate 5.650% Senior Notes due on November 1, 2034 250,000 5.670 % 250,000 5.670 % Fixed-rate 4.100% Senior Notes due on March 15, 2029 800,000 4.159 % 800,000 4.159 % Fixed-rate 5.000% Senior Notes due on March 15, 2049 400,000 5.047 % 400,000 5.047 % Fixed-rate 3.300% Senior Notes due on March 1, 2050 750,000 3.302 % 750,000 3.302 % Fixed-rate 3.590% Note Payable due on February 20, 2022 20,000 2.300 % 20,000 2.300 % Total 3,470,000 3,470,000 Unamortized discount/premium, net (6,878) (7,168) Unamortized debt issuance costs (19,016) (20,065) Total $ 3,444,106 $ 3,442,767 Reported as: Short-term debt $ 20,000 $ 20,000 Long-term debt 3,424,106 3,422,767 Total $ 3,444,106 $ 3,442,767

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Schedule of Leases Cost	Supplemental cash flow information related to leases was as follows: Six Months Ended December 31, In thousands 2021 2020 Operating cash outflows from operating leases $ 19,050 $ 19,253 Right of use assets obtained in exchange for new operating lease liabilities $ 11,389 $ 20,584
Schedule of Maturities of Lease Liabilities	Maturities of lease liabilities as of December 31, 2021 were as follows: Fiscal Year Ending June 30: (In thousands) 2022 (remaining six months) $ 18,100 2023 27,797 2024 17,891 2025 12,716 2026 9,633 2027 and thereafter 12,798 Total lease payments 98,935 Less imputed interest (3,915) Total $ 95,020

EQUITY, LONG-TERM INCENTIVE C_2

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST (Tables)	6 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Combined Activity Under Equity Incentive Plans	The following table summarizes the combined activity under our equity incentive plans: (In thousands) Available For Grant (1) (2) Balance as of June 30, 2021 10,253 RSUs granted (3) (467) RSUs granted adjustment (4) 39 RSUs canceled 62 Balance as of December 31, 2021 9,887 __________________ (1) The number of RSUs reflects the application of the award multiplier of 2.0x to calculate the impact of the award on the shares reserved under the 2004 Plan. (2) No additional stock options, RSUs or other awards will be granted under the Assumed Equity Plans. (3) Includes RSUs granted to senior management during the six months ended December 31, 2021 with performance-based vesting criteria (in addition to service-based vesting criteria for any of such RSUs that are deemed to have been earned) (“performance-based RSUs”). This line item includes all such performance-based RSUs granted during the six months ended December 31, 2021 reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.2 million shares for the six months ended December 31, 2021 reflects the application of the multiplier described above). (4) Represents the portion of RSUs granted with performance-based vesting criteria and reported at the actual number of shares issued upon achievement of the performance-based vesting criteria during the six months ended December 31, 2021.
Schedule of Stock-based Compensation Expense	The following table shows stock-based compensation expense for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Stock-based compensation expense by: Costs of revenues $ 4,094 $ 4,104 $ 7,932 $ 7,771 R&D 4,901 5,225 9,595 10,696 SG&A 18,771 17,498 35,455 35,352 Total stock-based compensation expense $ 27,766 $ 26,827 $ 52,982 $ 53,819
Schedule of Restricted Stock Activity	The following table shows the activity and weighted-average grant date fair values for RSUs during the six months ended December 31, 2021: Shares (1) (In thousands) Weighted-Average Outstanding RSUs as of June 30, 2021 (2) 1,710 $ 133.76 Granted (3) 234 $ 356.39 Granted adjustments (19) $ 118.47 Vested and released (226) $ 126.60 Withheld for taxes (148) $ 126.60 Forfeited (35) $ 137.88 Outstanding RSUs as of December 31, 2021 (2) 1,516 $ 169.87 __________________ (1) Share numbers reflect actual shares subject to awarded RSUs. (2) Includes performance-based RSUs. (3) This line item includes performance-based RSUs granted during the six months ended December 31, 2021 reported at the maximum possible number of shares that may ultimately be issuable if all applicable performance-based criteria are achieved at their maximum levels and all applicable service-based criteria are fully satisfied (0.1 million shares for the six months ended December 31, 2021).
Schedule of Grant Date Fair Value, Weighted Average Grant Date Fair Value, and Tax Benefits for Restricted Stock Units	The following table shows the weighted-average grant date fair value per unit for the RSUs granted, vested, and tax benefits realized by us in connection with vested and released RSUs for the indicated periods : Three Months Ended December 31, Six Months Ended December 31, (In thousands, except for weighted-average grant date fair value) 2021 2020 2021 2020 Weighted-average grant date fair value per unit $ 393.67 $ 220.53 $ 356.39 $ 202.60 Grant date fair value of vested RSUs $ 10,563 $ 23,267 $ 47,303 $ 50,569 Tax benefits realized by us in connection with vested and released RSUs $ 4,913 $ 6,694 $ 13,921 $ 13,431
Schedule of Employee Stock Purchase Rights Valuation	The fair value of each purchase right under the ESPP was estimated on the date of grant using the Black-Scholes model and the straight-line attribution approach with the following weighted-average assumptions: Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Stock purchase plan: Expected stock price volatility 34.9 % 51.9 % 34.9 % 51.9 % Risk-free interest rate 0.1 % 0.7 % 0.1 % 0.7 % Dividend yield 1.4 % 1.9 % 1.4 % 1.9 % Expected life (in years) 0.5 0.5 0.5 0.5
Schedule of Tax Benefits Realized and Weighted-average fair value for the ESPP	The following table shows total cash received from employees for the issuance of shares under the ESPP, the number of shares purchased by employees through the ESPP, the tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP and the weighted-average fair value per share for the indicated periods: (In thousands, except for weighted-average fair value per share) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Total cash received from employees for the issuance of shares under the ESPP $ 36,912 $ 26,356 $ 36,912 $ 26,356 Number of shares purchased by employees through the ESPP 139 161 139 161 Tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP $ 231 $ 272 $ 1,198 $ 1,164 Weighted-average fair value per share based on Black-Scholes model $ 71.82 $ 52.23 $ 71.82 $ 52.23

STOCK REPURCHASE PROGRAM (Table

STOCK REPURCHASE PROGRAM (Tables)	6 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Schedule of Share Repurchases	Share repurchases for the indicated periods (based on the trade date of the applicable repurchase) were as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Number of shares of common stock repurchased 1,104 774 2,294 1,801 Total cost of repurchases $ 429,874 $ 177,492 $ 829,551 $ 371,389

NET INCOME PER SHARE (Tables)

NET INCOME PER SHARE (Tables)	6 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Schedule of Net Income per Share	The following table sets forth the computation of basic and diluted net income per share attributable to KLA: (In thousands, except per share amounts) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Numerator: Net income attributable to KLA $ 717,444 $ 457,251 $ 1,785,861 $ 877,818 Denominator: Weighted-average shares - basic, excluding unvested RSUs 151,251 154,273 151,791 154,777 Effect of dilutive RSUs and options 1,080 1,287 1,095 1,280 Weighted-average shares - diluted 152,331 155,560 152,886 156,057 Basic net income per share attributable to KLA $ 4.74 $ 2.96 $ 11.77 $ 5.67 Diluted net income per share attributable to KLA $ 4.71 $ 2.94 $ 11.68 $ 5.62 Anti-dilutive securities excluded from the computation of diluted net income per share — — 5 —

INCOME TAXES (Tables)

INCOME TAXES (Tables)	6 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Schedule of Details of Income Taxes	The following table provides details of income taxes: Three Months Ended December 31, Six Months Ended December 31, (Dollar amounts in thousands) 2021 2020 2021 2020 Income before income taxes $ 926,905 $ 527,402 $ 1,693,253 $ 1,011,208 Provision (benefit) for income taxes $ 209,388 $ 70,419 $ (92,749) $ 134,083 Effective tax rate 22.6 % 13.4 % (5.5) % 13.3 %

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	6 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Receivables Sold Under Factoring Agreements	The following table shows total receivables sold under factoring agreements and proceeds from sales of LC for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Receivables sold under factoring agreements $ 79,918 $ 49,917 $ 147,036 $ 138,562 Proceeds from sales of LC $ 19,493 $ 21,709 $ 41,166 $ 40,839

DERIVATIVE INSTRUMENTS AND HE_2

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	6 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments, Location, Designated and Non-Designated, Gains (Losses)	The gains (losses) on derivatives in cash flow and net investment hedging relationships recognized in other comprehensive income for the indicated periods were as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Derivatives Designated as Cash Flow Hedging Instruments: Foreign exchange contracts: Amounts included in the assessment of effectiveness $ 6,749 $ (1,310) $ 7,602 $ (2,182) Amounts excluded from the assessment of effectiveness $ (8) $ (47) $ (9) $ (93) Derivatives Designated as Net Investment Hedging Instruments: Foreign exchange contracts (1) : $ (293) $ — $ 357 $ — __________________ (1) No amounts were reclassified from AOCI into earnings related to the sale of a subsidiary, as there were no such sales during the periods presented. The locations and amounts of designated and non-designated derivatives’ gains and losses reported in the Condensed Consolidated Statements of Operations for the indicated periods were as follows: Three Months Ended December 31, Three Months Ended December 31, 2021 2020 (In thousands) Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Total amounts presented in the Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded $ 2,352,630 $ 1,386,672 $ 37,852 $ 1,201 $ 1,650,870 $ 1,080,706 $ 38,880 $ 3,882 Gains (Losses) on Derivatives Designated as Hedging Instruments: Rate lock agreements: Amount of gains (losses) reclassified from AOCI to earnings $ — $ — $ (279) $ — $ — $ — $ (279) $ — Foreign exchange contracts: Amount of gains (losses) reclassified from AOCI to earnings $ 1,643 $ (348) $ — $ — $ (560) $ (125) $ — $ — Amount excluded from the assessment of effectiveness recognized in earnings $ (104) $ — $ — $ 658 $ (151) $ — $ — $ — Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Amount of gains (losses) recognized in earnings $ — $ — $ — $ 5,994 $ — $ — $ — $ 2,661 Six Months Ended December 31, Six Months Ended December 31, 2021 2020 (In thousands) Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Revenues Costs of Revenues and Operating Expenses Interest Expense Other Expense (Income), Net Total amounts presented in the Condensed Consolidated Statements of Operations in which the effects of cash flow hedges are recorded $ 4,436,468 $ 2,651,710 $ 76,164 $ 15,341 $ 3,189,490 $ 2,092,937 $ 78,266 $ 7,079 Gains (Losses) on Derivatives Designated as Hedging Instruments: Rate lock agreements: Amount of gains (losses) reclassified from AOCI to earnings $ — $ — $ (558) $ — $ — $ — $ (558) $ — Foreign exchange contracts: Amount of gains (losses) reclassified from AOCI to earnings $ 3,486 $ (580) $ — $ — $ (650) $ 425 $ — $ — Amount excluded from the assessment of effectiveness recognized in earnings $ (218) $ — $ — $ 1,315 $ (278) $ — $ — $ — Gains (Losses) on Derivatives Not Designated as Hedging Instruments: Amount of gains (losses) recognized in earnings $ — $ — $ — $ 7,063 $ — $ — $ — $ (2,937)
Schedule of Notional Amounts of Derivatives Outstanding	The U.S. dollar equivalent of all outstanding notional amounts of foreign currency hedge contracts, with maximum remaining maturities of approximately eleven months as of the dates indicated below, were as follows: As of As of (In thousands) December 31, 2021 June 30, 2021 Cash flow hedge contracts - foreign currency Purchase $ 125,914 $ 12,550 Sell $ 177,766 $ 134,845 Net Investment hedge contracts - foreign currency Sell $ 66,848 $ 66,848 Other foreign currency hedge contracts Purchase $ 386,460 $ 264,292 Sell $ 342,420 $ 278,635
Schedule of Derivative Instruments, Fair Value	The locations and fair value of our derivatives reported in our Condensed Consolidated Balance Sheets as of the dates indicated below were as follows: Asset Derivatives Liability Derivatives Balance Sheet As of As of Balance Sheet As of As of Location December 31, 2021 June 30, 2021 Location December 31, 2021 June 30, 2021 (In thousands) Fair Value Fair Value Derivatives designated as hedging instruments Foreign exchange contracts Other current assets $ 8,057 $ 3,940 Other current liabilities $ (175) $ 272 Total derivatives designated as hedging instruments 8,057 3,940 (175) 272 Derivatives not designated as hedging instruments Foreign exchange contracts Other current assets 5,982 4,312 Other current liabilities (3,642) 2,535 Total derivatives not designated as hedging instruments 5,982 4,312 (3,642) 2,535 Total derivatives $ 14,039 $ 8,252 $ (3,817) $ 2,807
Schedule of Balances and Changes in Accumulated Other Comprehensive Income Related to Derivative Instruments	The changes in AOCI, before taxes, related to derivatives for the indicated periods were as follows: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Beginning AOCI $ (25,546) $ (30,574) $ (25,830) $ (29,602) Amount reclassified to earnings as net (gains) losses (912) 1,115 (2,130) 1,061 Net change in unrealized gains (losses) 5,627 (1,357) 7,129 (2,275) Ending AOCI $ (20,831) $ (30,816) $ (20,831) $ (30,816)
Schedule of Offsetting Derivative Assets	The information related to the offsetting arrangements for the periods indicated was as follows (in thousands): As of December 31, 2021 Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Derivatives - Assets $ 14,039 $ — $ 14,039 $ (3,427) $ — $ 10,612 Derivatives - Liabilities $ (3,817) $ — $ (3,817) $ 3,427 $ — $ (390) As of June 30, 2021 Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Derivatives - Assets $ 8,252 $ — $ 8,252 $ (2,492) $ — $ 5,760 Derivatives - Liabilities $ (2,807) $ — $ (2,807) $ 2,492 $ — $ (315)
Schedule of Offsetting Derivative Liabilities	The information related to the offsetting arrangements for the periods indicated was as follows (in thousands): As of December 31, 2021 Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Derivatives - Assets $ 14,039 $ — $ 14,039 $ (3,427) $ — $ 10,612 Derivatives - Liabilities $ (3,817) $ — $ (3,817) $ 3,427 $ — $ (390) As of June 30, 2021 Gross Amounts of Derivatives Not Offset in the Condensed Consolidated Balance Sheets Description Gross Amounts of Derivatives Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets Financial Instruments Cash Collateral Received Net Amount Derivatives - Assets $ 8,252 $ — $ 8,252 $ (2,492) $ — $ 5,760 Derivatives - Liabilities $ (2,807) $ — $ (2,807) $ 2,492 $ — $ (315)

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	6 Months Ended
	Dec. 31, 2021
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The following table provides the transactions with these parties for the indicated periods (for the portion of such period that they were considered related): Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Total revenues $ 264 $ 324 $ 623 $ 638 Total purchases $ 193 $ 279 $ 272 $ 571

SEGMENT REPORTING AND GEOGRAP_2

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION (Tables)	6 Months Ended
	Dec. 31, 2021
Segment Reporting [Abstract]
Schedule of Results for Reportable Segments	The following is a summary of results for each of our four reportable segments for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 SPC: Revenues $ 2,052,202 $ 1,380,184 $ 3,831,285 $ 2,648,138 Segment gross profit 1,342,937 884,090 2,504,866 1,698,900 Specialty Semiconductor Process: Revenues 112,738 90,587 214,767 179,540 Segment gross profit 60,274 51,171 114,995 101,099 PCB, Display and Component Inspection: Revenues 187,977 179,267 390,785 360,444 Segment gross profit 82,322 84,584 176,798 174,753 Other: Revenues — 449 — 590 Segment gross profit — (121) — (108) Totals: Revenues for reportable segments $ 2,352,917 $ 1,650,487 $ 4,436,837 $ 3,188,712 Segment gross profit $ 1,485,533 $ 1,019,724 $ 2,796,659 $ 1,974,644
Schedule of Reconciliation of Total Reportable Segments Revenue to Total Revenue	The following table reconciles total revenues for reportable segments to total revenues for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Total revenues for reportable segments $ 2,352,917 $ 1,650,487 $ 4,436,837 $ 3,188,712 Corporate allocations and effects of changes in foreign currency exchange rates (287) 383 (369) 778 Total revenues $ 2,352,630 $ 1,650,870 $ 4,436,468 $ 3,189,490
Schedule of Reconciliation of Total Segment Gross Profit to Total Income Before Income Taxes	The following table reconciles total segment gross profit to total income before income taxes for the indicated periods: Three Months Ended December 31, Six Months Ended December 31, (In thousands) 2021 2020 2021 2020 Total segment gross profit $ 1,485,533 $ 1,019,724 $ 2,796,659 $ 1,974,644 Acquisition-related charges, corporate allocations, and effects of changes in foreign currency exchange rates (1) 41,065 38,587 81,977 75,449 R&D 265,031 229,064 523,184 448,102 SG&A 213,479 181,909 406,740 354,540 Interest expense 37,852 38,880 76,164 78,266 Other expense (income), net 1,201 3,882 15,341 7,079 Income before income taxes $ 926,905 $ 527,402 $ 1,693,253 $ 1,011,208 __________________
Schedule of Revenues by Geographic Region	The following is a summary of revenues by geographic region, based on ship-to location, for the indicated periods: (Dollar amounts in thousands) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Revenues: Taiwan $ 776,442 33 % $ 380,785 23 % $ 1,403,526 31 % $ 749,886 24 % China 544,537 23 % 382,157 23 % 1,229,693 28 % 868,246 27 % Korea 323,095 14 % 347,947 21 % 562,278 13 % 537,465 17 % North America 271,594 12 % 214,808 13 % 449,334 10 % 384,984 12 % Japan 196,282 8 % 156,721 10 % 371,449 8 % 321,140 10 % Europe and Israel 175,195 7 % 100,201 6 % 262,635 6 % 183,318 6 % Rest of Asia 65,485 3 % 68,251 4 % 157,553 4 % 144,451 4 % Total $ 2,352,630 100 % $ 1,650,870 100 % $ 4,436,468 100 % $ 3,189,490 100 %
Schedule of Revenues by Major Products	The following is a summary of revenues by major product categories for the indicated periods: (Dollar amounts in thousands) Three Months Ended December 31, Six Months Ended December 31, 2021 2020 2021 2020 Revenues: Wafer Inspection $ 1,104,032 48 % $ 687,030 42 % $ 1,991,544 45 % $ 1,206,581 38 % Patterning 508,785 22 % 307,512 19 % 948,376 21 % 678,444 21 % Specialty Semiconductor Process 104,932 4 % 71,978 4 % 198,052 4 % 146,005 5 % PCB, Display and Component Inspection 121,750 5 % 115,825 7 % 259,637 6 % 236,451 7 % Services 456,861 19 % 412,847 25 % 910,811 21 % 805,972 25 % Other 56,270 2 % 55,678 3 % 128,048 3 % 116,037 4 % Total $ 2,352,630 100 % $ 1,650,870 100 % $ 4,436,468 100 % $ 3,189,490 100 %
Schedule of Long-Lived Assets by Geographic Region	Land, property and equipment, net by geographic region as of the dates indicated below were as follows: As of As of (In thousands) December 31, 2021 June 30, 2021 Land, property and equipment, net: United States $ 490,597 $ 447,359 Singapore 79,880 76,882 Israel 65,269 57,403 Europe 55,262 56,895 Rest of Asia 26,170 24,488 Total $ 717,178 $ 663,027

REVENUE - Schedule of Contract

REVENUE - Schedule of Contract Balances (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2021	Jun. 30, 2021
Accounts receivable, net
Accounts receivable, net	$ 1,728,376	$ 1,305,479
Change in accounts receivable, net	$ 422,897
Percentage change in accounts receivable, net	32.00%
Contract assets
Contract assets	$ 96,676	91,052
Change in contract assets	$ 5,624
Percentage change in contract assets	6.00%
Contract liabilities
Contract liabilities	$ 842,880	$ 667,703
Change in contract liabilities	$ 175,177
Percentage change in contract liabilities	26.00%

REVENUE - Additional Informatio

REVENUE - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue remainder payable acceptance period	30 days
Revenue recognized in excess of amount billed to customer		$ 62.1
Decrease in contract assets, reclassified to accounts receivable		56.9
Change in contract liabilities, revenue recognized		$ 424.4	$ 439.9
Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue payment terms required payment percentage of total contract consideration within 30 To 60 days of shipment	70.00%	70.00%
Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue payment terms required payment percentage of total contract consideration within 30 To 60 days of shipment	90.00%	90.00%

REVENUE - Remaining Performance

REVENUE - Remaining Performance Obligations (Details) $ in Millions	Dec. 31, 2021USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 8,350
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, expected timing of satisfaction, period	12 months
Minimum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percentage	25.00%
Maximum | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percentage	40.00%

FAIR VALUE MEASUREMENTS (Detail

FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Other current assets:
Derivative assets	$ 14,039	$ 8,252
Liabilities
Derivative liabilities	(3,817)	(2,807)
Contingent consideration payable	(23,200)
Cash excluded from fair value measurement	783,000	641,600
Time deposits excluded from fair value measurement	261,900	210,600
Time deposits, cash equivalents excluded from fair value measurement	97,300	101,700
Recurring
Marketable securities:
Total cash equivalents and marketable securities	1,765,557	1,642,316
Other current assets:
Derivative assets	14,039	8,252
Other non-current assets:
Executive Deferred Savings Plan	274,529	266,199
Total financial assets	2,054,125	1,916,767
Liabilities
Derivative liabilities	(3,817)	(2,807)
Deferred payments	(4,700)	(4,550)
Contingent consideration payable	(23,177)	(8,514)
Total financial liabilities	(31,694)	(15,871)
Recurring | Money market funds and other
Cash equivalents:
Cash equivalents	776,782	691,375
Recurring | Corporate debt securities
Marketable securities:
Marketable securities	479,974	468,746
Recurring | Municipal securities
Marketable securities:
Marketable securities	67,268	70,228
Recurring | Sovereign securities
Marketable securities:
Marketable securities	5,031	3,052
Recurring | U.S. Government agency securities
Marketable securities:
Marketable securities	121,089	145,921
Recurring | U.S. Treasury securities
Marketable securities:
Marketable securities	294,380	233,064
Recurring | Equity Securities
Marketable securities:
Marketable securities	21,033	29,930
Recurring | Level 1
Marketable securities:
Total cash equivalents and marketable securities	1,206,986	1,042,351
Other current assets:
Derivative assets	0	0
Other non-current assets:
Executive Deferred Savings Plan	208,307	200,925
Total financial assets	1,415,293	1,243,276
Liabilities
Derivative liabilities	0	0
Deferred payments	0	0
Contingent consideration payable	0	0
Total financial liabilities	0	0
Recurring | Level 1 | Money market funds and other
Cash equivalents:
Cash equivalents	776,782	691,375
Recurring | Level 1 | Corporate debt securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 1 | Municipal securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 1 | Sovereign securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 1 | U.S. Government agency securities
Marketable securities:
Marketable securities	121,089	145,921
Recurring | Level 1 | U.S. Treasury securities
Marketable securities:
Marketable securities	288,082	205,055
Recurring | Level 1 | Equity Securities
Marketable securities:
Marketable securities	21,033	0
Recurring | Level 2
Marketable securities:
Total cash equivalents and marketable securities	558,571	599,965
Other current assets:
Derivative assets	14,039	8,252
Other non-current assets:
Executive Deferred Savings Plan	66,222	65,274
Total financial assets	638,832	673,491
Liabilities
Derivative liabilities	(3,817)	(2,807)
Deferred payments	0	0
Contingent consideration payable	0	0
Total financial liabilities	(3,817)	(2,807)
Recurring | Level 2 | Money market funds and other
Cash equivalents:
Cash equivalents	0	0
Recurring | Level 2 | Corporate debt securities
Marketable securities:
Marketable securities	479,974	468,746
Recurring | Level 2 | Municipal securities
Marketable securities:
Marketable securities	67,268	70,228
Recurring | Level 2 | Sovereign securities
Marketable securities:
Marketable securities	5,031	3,052
Recurring | Level 2 | U.S. Government agency securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 2 | U.S. Treasury securities
Marketable securities:
Marketable securities	6,298	28,009
Recurring | Level 2 | Equity Securities
Marketable securities:
Marketable securities	0	29,930
Recurring | Level 3
Marketable securities:
Total cash equivalents and marketable securities	0	0
Other current assets:
Derivative assets	0	0
Other non-current assets:
Executive Deferred Savings Plan	0	0
Total financial assets	0	0
Liabilities
Derivative liabilities	0	0
Deferred payments	(4,700)	(4,550)
Contingent consideration payable	(23,177)	(8,514)
Total financial liabilities	(27,877)	(13,064)
Recurring | Level 3 | Money market funds and other
Cash equivalents:
Cash equivalents	0	0
Recurring | Level 3 | Corporate debt securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 3 | Municipal securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 3 | Sovereign securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 3 | U.S. Government agency securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 3 | U.S. Treasury securities
Marketable securities:
Marketable securities	0	0
Recurring | Level 3 | Equity Securities
Marketable securities:
Marketable securities	$ 0	$ 0

FINANCIAL STATEMENT COMPONENT_2

FINANCIAL STATEMENT COMPONENTS - Balance Sheet Components (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Accounts receivable, net:
Accounts receivable, gross	$ 1,747,734		$ 1,747,734		$ 1,323,515
Allowance for credit losses	(19,358)		(19,358)		(18,036)
Accounts receivable, net	1,728,376		1,728,376		1,305,479
Inventories:
Customer service parts	371,341		371,341		349,743
Raw materials	786,744		786,744		595,151
Work-in-process	427,972		427,972		453,432
Finished goods	243,355		243,355		177,054
Inventories	1,829,412		1,829,412		1,575,380
Other current assets:
Prepaid expenses	78,064		78,064		76,649
Contract assets	96,676		96,676		91,052
Deferred costs of revenues	83,153		83,153		59,953
Prepaid income and other taxes	37,731		37,731		68,847
Other current assets	37,602		37,602		24,366
Other current assets, total	333,226		333,226		320,867
Land, property and equipment, net:
Land	67,862		67,862		67,862
Buildings and leasehold improvements	469,025		469,025		458,605
Machinery and equipment	756,921		756,921		743,710
Office furniture and fixtures	33,067		33,067		32,856
Construction-in-process	236,543		236,543		182,320
Land, property and equipment, gross	1,563,418		1,563,418		1,485,353
Less: accumulated depreciation	(846,240)		(846,240)		(822,326)
Land, property and equipment, net	717,178		717,178		663,027
Other non-current assets:
Executive Deferred Savings Plan	274,529		274,529		266,199
Operating lease right of use assets	97,836		97,836		102,883
Other non-current assets	78,580		78,580		75,823
Other non-current assets, total	450,945		450,945		444,905
Other current liabilities:
Customer credits and advances	482,991		482,991		250,784
Compensation and benefits	500,301		500,301		305,445
Executive Deferred Savings Plan	274,508		274,508		268,028
Other accrued expenses	184,347		184,347		180,982
Income taxes payable	125,535		125,535		87,320
Interest payable	$ 35,970		$ 35,970		$ 36,135
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities, total		Other current liabilities, total		Other current liabilities, total
Operating lease liabilities	$ 32,467		$ 32,467		$ 32,322
Other current liabilities, total	1,636,119		1,636,119		1,161,016
Other non-current liabilities:
Income taxes payable	340,890		340,890		333,866
Pension liabilities	85,677		85,677		87,602
Operating lease liabilities	$ 62,553		$ 62,553		$ 70,739
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities, total		Other non-current liabilities, total		Other non-current liabilities, total
Other non-current liabilities	$ 161,693		$ 161,693		$ 139,083
Other non-current liabilities, total	650,813		650,813		$ 631,290
SG&A
Other non-current liabilities:
Expense associated with changes in the EDSP Liability	12,000	$ 22,100	11,000	$ 35,300
Gain on deferred compensation plan assets	$ 11,800	$ 22,200	$ 10,700	$ 35,500

FINANCIAL STATEMENT COMPONENT_3

FINANCIAL STATEMENT COMPONENTS - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss)
Ending balance	$ 4,048,527
Beginning balance		$ 3,377,554
Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss)
Ending balance	(36,314)
Beginning balance		(32,563)
Unrealized Gains (Losses) on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss)
Ending balance	(2,223)
Beginning balance		595
Unrealized Gains (Losses) on Derivatives
Accumulated Other Comprehensive Income (Loss)
Ending balance	(15,653)
Beginning balance		(20,092)
Unrealized Gains (Losses) on Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss)
Ending balance	(22,289)
Beginning balance		(23,497)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Ending balance	$ (76,479)
Beginning balance		$ (75,557)

FINANCIAL STATEMENT COMPONENT_4

FINANCIAL STATEMENT COMPONENTS - Effects on Net Income (Loss) of Amounts Reclassified from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss)
Revenues	$ 2,352,630		$ 1,650,870		$ 4,436,468	$ 3,189,490
Costs of revenues and operating expenses	(1,386,672)		(1,080,706)		(2,651,710)	(2,092,937)
Interest expense	(37,852)		(38,880)		(76,164)	(78,266)
Net gains (losses) reclassified from AOCI	717,444	$ 1,068,417	457,251	$ 420,567	1,785,861	877,818
Other expense (income), net	1,201		3,882		15,341	7,079
Unrealized Gains (Losses) on Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss)
Reclassification adjustment from AOCI, net of tax	400		300		700	500
Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) on cash flow hedges from foreign exchange and interest rate contracts
Accumulated Other Comprehensive Income (Loss)
Revenues	1,539		(711)		3,268	(928)
Costs of revenues and operating expenses	(348)		(125)		(580)	425
Interest expense	(279)		(279)		(558)	(558)
Net gains (losses) reclassified from AOCI	912		(1,115)		2,130	(1,061)
Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) on available-for-sale securities
Accumulated Other Comprehensive Income (Loss)
Other expense (income), net	$ (3)		$ 111		$ (2)	$ 212

MARKETABLE SECURITIES - Amortiz

MARKETABLE SECURITIES - Amortized Cost and Fair Value (Details)	Dec. 31, 2021USD ($)investment	Jun. 30, 2021USD ($)
Debt Securities, Available-for-sale [Line Items]
Total	$ 1,138,413,000
Available-for-sale securities, fair value	1,153,404,000
Money market funds and other	776,782,000	$ 691,375,000
Equity securities, amortized cost	3,211,000	3,211,000
Equity securities, gross unrealized gains	17,822,000	26,719,000
Equity securities, gross unrealized losses	0	0
Equity securities, fair value	21,033,000	29,930,000
Subtotal, amortized cost	1,750,566,000	1,614,840,000
Subtotal, gross unrealized gains	17,998,000	27,810,000
Subtotal, gross unrealized losses	(3,007,000)	(334,000)
Subtotal, fair value	1,765,557,000	1,642,316,000
Add: Time deposits	261,942,000	210,636,000
Less: Cash equivalents	874,095,000	793,040,000
Marketable securities, amortized cost	1,138,413,000	1,032,436,000
Marketable securities, fair value	$ 1,153,404,000	1,059,912,000
Number of investments in an unrealized loss position | investment	488
Investments in continuous loss position, 12 months or more	$ 0
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Total	481,191,000	468,192,000
Available-for-sale securities, gross unrealized gains	95,000	689,000
Available-for-sale securities, gross unrealized losses	(1,312,000)	(135,000)
Available-for-sale securities, fair value	479,974,000	468,746,000
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Total	67,501,000	70,155,000
Available-for-sale securities, gross unrealized gains	14,000	106,000
Available-for-sale securities, gross unrealized losses	(247,000)	(33,000)
Available-for-sale securities, fair value	67,268,000	70,228,000
Sovereign securities
Debt Securities, Available-for-sale [Line Items]
Total	5,036,000	3,045,000
Available-for-sale securities, gross unrealized gains	5,000	7,000
Available-for-sale securities, gross unrealized losses	(10,000)	0
Available-for-sale securities, fair value	5,031,000	3,052,000
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Total	121,255,000	145,810,000
Available-for-sale securities, gross unrealized gains	58,000	160,000
Available-for-sale securities, gross unrealized losses	(224,000)	(49,000)
Available-for-sale securities, fair value	121,089,000	145,921,000
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Total	295,590,000	233,052,000
Available-for-sale securities, gross unrealized gains	4,000	129,000
Available-for-sale securities, gross unrealized losses	(1,214,000)	(117,000)
Available-for-sale securities, fair value	$ 294,380,000	$ 233,064,000
Corporate and Government securities
Debt Securities, Available-for-sale [Line Items]
Investment portfolio, maximum maturity term	3 years

MARKETABLE SECURITIES - Continu

MARKETABLE SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 791,517	$ 339,282
Gross Unrealized Losses	(3,007)	(334)
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	383,964	161,012
Gross Unrealized Losses	(1,312)	(135)
Sovereign securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	1,993
Gross Unrealized Losses	(10)
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	60,649	21,605
Gross Unrealized Losses	(247)	(33)
U.S. Government agency securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	66,225	38,904
Gross Unrealized Losses	(224)	(49)
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	278,686	117,761
Gross Unrealized Losses	$ (1,214)	$ (117)

MARKETABLE SECURITIES - Contrac

MARKETABLE SECURITIES - Contractual Maturities (Details) $ in Thousands	Dec. 31, 2021USD ($)
Amortized Cost
Due within one year	$ 519,562
Due after one year through three years	618,851
Total	1,138,413
Fair Value
Due within one year	537,300
Due after one year through three years	616,104
Total	$ 1,153,404

BUSINESS COMBINATIONS (Details)

BUSINESS COMBINATIONS (Details) - USD ($) $ in Thousands	Sep. 17, 2021	Jul. 01, 2021	Dec. 31, 2021	Jun. 30, 2021
Business Acquisition
Contingent consideration			$ 23,200
Goodwill			2,042,794	$ 2,011,172
Acquired goodwill			31,621
Contingent consideration liability, current			1,100
Contingent consideration liability, non-current			22,100
Wafer Inspection and Patterning
Business Acquisition
Goodwill			448,482	$ 416,860
Acquired goodwill			31,621
September 2021 acquisition
Business Acquisition
Total purchase consideration	$ 460,000
July 2021 acquisition
Business Acquisition
Total purchase consideration		$ 81,700
Additional consideration (up to)		35,000
Contingent consideration			$ 13,000
Identifiable intangible assets		31,700
Net tangible assets		26,400
Deferred tax liabilities		8,000
Goodwill		31,600
July 2021 acquisition | Wafer Inspection and Patterning
Business Acquisition
Acquired goodwill		$ 31,600

GOODWILL AND PURCHASED INTANG_3

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details)	6 Months Ended	12 Months Ended
	Dec. 31, 2021USD ($)segment	Jun. 30, 2021USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of reportable segments | segment	4
Number of operating segments | segment	6
Goodwill impairment | $		$ 0
Impairment of intangible assets | $	$ 0

GOODWILL AND PURCHASED INTANG_4

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Schedule of Goodwill (Details)	6 Months Ended
	Dec. 31, 2021USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 2,011,172,000
Acquired goodwill	31,621,000
Foreign currency adjustments	1,000
Ending balance	2,042,794,000
Goodwill	2,042,794,000
Wafer Inspection and Patterning
Goodwill [Roll Forward]
Beginning balance	416,860,000
Acquired goodwill	31,621,000
Foreign currency adjustments	1,000
Ending balance	448,482,000
Goodwill	448,482,000
Global Service and Support (“GSS”)
Goodwill [Roll Forward]
Beginning balance	25,908,000
Acquired goodwill	0
Foreign currency adjustments	0
Ending balance	25,908,000
Goodwill	25,908,000
Specialty Semiconductor Process
Goodwill [Roll Forward]
Beginning balance	681,858,000
Acquired goodwill	0
Foreign currency adjustments	0
Ending balance	681,858,000
Goodwill	681,858,000
PCB and Display
Goodwill [Roll Forward]
Beginning balance	872,971,000
Acquired goodwill	0
Foreign currency adjustments	0
Ending balance	872,971,000
Goodwill	872,971,000
Component Inspection
Goodwill [Roll Forward]
Beginning balance	13,575,000
Acquired goodwill	0
Foreign currency adjustments	0
Ending balance	13,575,000
Goodwill	13,575,000
Others
Goodwill [Roll Forward]
Beginning balance	0
Ending balance	0
Goodwill	$ 0

GOODWILL AND PURCHASED INTANG_5

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Purchased Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2021	Jun. 30, 2021
Purchased Intangible Assets
Intangible assets subject to amortization, gross	$ 1,884,327	$ 1,856,215
Intangible assets, gross	1,951,983	1,919,471
Intangible assets subject to amortization, accumulated amortization	840,930	734,060
Accumulated Amortization and Impairment	846,992	734,160
Intangible assets subject to amortization, net	1,043,397	1,122,155
Purchased intangible assets, net	1,104,991	1,185,311
In-process research and development
Purchased Intangible Assets
Indefinite-lived intangible assets, gross	67,656	63,256
Indefinite-lived intangible assets, other accumulated adjustments	6,062	100
Indefinite-lived intangible assets, net	61,594	63,156
Existing technology
Purchased Intangible Assets
Intangible assets subject to amortization, gross	1,400,191	1,382,612
Intangible assets subject to amortization, accumulated amortization	581,249	499,219
Intangible assets subject to amortization, net	818,942	883,393
Customer relationships
Purchased Intangible Assets
Intangible assets subject to amortization, gross	313,317	305,817
Intangible assets subject to amortization, accumulated amortization	148,452	131,386
Intangible assets subject to amortization, net	164,865	174,431
Trade name / Trademark
Purchased Intangible Assets
Intangible assets subject to amortization, gross	117,983	117,383
Intangible assets subject to amortization, accumulated amortization	60,707	53,493
Intangible assets subject to amortization, net	57,276	63,890
Backlog and other
Purchased Intangible Assets
Intangible assets subject to amortization, gross	52,836	50,403
Intangible assets subject to amortization, accumulated amortization	50,522	49,962
Intangible assets subject to amortization, net	$ 2,314	$ 441
Minimum | Existing technology
Purchased Intangible Assets
Range of Useful  Lives (in years)	4 years
Minimum | Customer relationships
Purchased Intangible Assets
Range of Useful  Lives (in years)	4 years
Minimum | Trade name / Trademark
Purchased Intangible Assets
Range of Useful  Lives (in years)	4 years
Minimum | Backlog and other
Purchased Intangible Assets
Range of Useful  Lives (in years)	1 year
Maximum | Existing technology
Purchased Intangible Assets
Range of Useful  Lives (in years)	8 years
Maximum | Customer relationships
Purchased Intangible Assets
Range of Useful  Lives (in years)	9 years
Maximum | Trade name / Trademark
Purchased Intangible Assets
Range of Useful  Lives (in years)	7 years
Maximum | Backlog and other
Purchased Intangible Assets
Range of Useful  Lives (in years)	9 years

GOODWILL AND PURCHASED INTANG_6

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Amortization Expense for Purchased Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Purchased Intangible Assets
Amortization of intangible assets	$ 53,544	$ 51,070	$ 107,088	$ 101,570
Amortization expense - Costs of revenues
Purchased Intangible Assets
Amortization of intangible assets	41,124	38,738	82,248	75,778
Amortization expense - SG&A
Purchased Intangible Assets
Amortization of intangible assets	12,389	12,301	24,778	25,730
Amortization expense - Research and development
Purchased Intangible Assets
Amortization of intangible assets	$ 31	$ 31	$ 62	$ 62

GOODWILL AND PURCHASED INTANG_7

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Future Estimated Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Remaing Estimated Amortization Expense
2022 (remaining six months)	$ 107,197
2023	212,659
2024	209,665
2025	197,596
2026	182,271
2027 and thereafter	134,009
Intangible assets subject to amortization, net	$ 1,043,397	$ 1,122,155

DEBT - Schedule of Debt (Detail

DEBT - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Debt Instrument
Total	$ 3,470,000	$ 3,470,000
Unamortized discount/premium, net	(6,878)	(7,168)
Unamortized debt issuance costs	(19,016)	(20,065)
Total	3,444,106	3,442,767
Short-term debt	20,000	20,000
Long-term debt	$ 3,424,106	3,422,767
Fixed-rate 4.650% Senior Notes due on November 1, 2024 | Senior notes
Debt Instrument
Stated interest rate	4.65%
Debt outstanding	$ 1,250,000	$ 1,250,000
Effective interest rate	4.682%	4.682%
Fixed-rate 5.650% Senior Notes due on November 1, 2034 | Senior notes
Debt Instrument
Stated interest rate	5.65%
Debt outstanding	$ 250,000	$ 250,000
Effective interest rate	5.67%	5.67%
Fixed-rate 4.100% Senior Notes due on March 15, 2029 | Senior notes
Debt Instrument
Stated interest rate	4.10%
Debt outstanding	$ 800,000	$ 800,000
Effective interest rate	4.159%	4.159%
Fixed-rate 5.000% Senior Notes due on March 15, 2049 | Senior notes
Debt Instrument
Stated interest rate	5.00%
Debt outstanding	$ 400,000	$ 400,000
Effective interest rate	5.047%	5.047%
Fixed-rate 3.300% Senior Notes due on March 1, 2050 | Senior notes
Debt Instrument
Stated interest rate	3.30%
Debt outstanding	$ 750,000	$ 750,000
Effective interest rate	3.302%	3.302%
Fixed-rate 3.590% Note Payable due on February 20, 2022 | Notes Payable
Debt Instrument
Stated interest rate	3.59%
Effective interest rate	2.30%	2.30%
Note payable	$ 20,000	$ 20,000

DEBT - Future Principal Payment

DEBT - Future Principal Payments (Details) $ in Millions	Dec. 31, 2021USD ($)
Debt Disclosure [Abstract]
Debt principal payments due in fiscal year 2022	$ 20
Debt principal payments due in fiscal year 2025	1,250
Debt principal payments due after fiscal year 2026	$ 2,200

DEBT - Senior Notes and Debt Re

DEBT - Senior Notes and Debt Redemption (Details) - USD ($)	3 Months Ended			6 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021	Feb. 29, 2020	Mar. 31, 2019	Nov. 30, 2014
Debt Instrument
Repayment of debt				$ 300,000,000	$ 50,000,000
Senior notes
Debt Instrument
Redemption price				101.00%
Fair value disclosure				$ 3,920,000,000		$ 3,980,000,000
Senior notes | 2020 Senior Notes
Debt Instrument
Debt face amount							$ 750,000,000
Senior notes | 2019 Senior Notes
Debt Instrument
Debt face amount								$ 1,200,000,000
Senior notes | 2014 Senior Notes
Debt Instrument
Debt face amount									$ 2,500,000,000
Repayment of debt	$ 500,000,000	$ 250,000,000	$ 250,000,000
Debt outstanding				$ 1,500,000,000

DEBT - Revolving Credit Facilit

DEBT - Revolving Credit Facility (Details)	1 Months Ended	3 Months Ended	6 Months Ended
	Nov. 30, 2017quarter	Sep. 30, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Debt Instrument
Proceeds from revolving credit facility			$ 300,000,000	$ 0
Line of credit | Revolving credit facility
Debt Instrument
Maximum borrowing capacity			1,000,000,000
Proceeds from revolving credit facility		$ 300,000,000
Debt outstanding			$ 0
Commitment fee percentage (in bps)			0.10%
Covenant compliance, number of consecutive quarters | quarter	4
Covenant compliance, minimum interest expense coverage ratio	3.50
Maximum leverage ratio	3		3
Maximum leverage ratio under a material acquisition or series of material acquisitions	4
Line of credit | Revolving credit facility | Minimum
Debt Instrument
Commitment fee percentage (in bps)	0.10%
Line of credit | Revolving credit facility | Maximum
Debt Instrument
Commitment fee percentage (in bps)	0.25%
Line of credit | Revolving credit facility | Alternative base rate | Minimum
Debt Instrument
Basis spread on variable rate (in bps)	0.00%
Line of credit | Revolving credit facility | Alternative base rate | Maximum
Debt Instrument
Basis spread on variable rate (in bps)	0.75%
Line of credit | Revolving credit facility | LIBOR
Debt Instrument
Basis spread on variable rate (in bps)			1.00%
Line of credit | Revolving credit facility | LIBOR | Minimum
Debt Instrument
Basis spread on variable rate (in bps)	1.00%
Line of credit | Revolving credit facility | LIBOR | Maximum
Debt Instrument
Basis spread on variable rate (in bps)	1.75%

DEBT - Notes Payable (Details)

DEBT - Notes Payable (Details) - Notes Payable - USD ($)	Feb. 20, 2021	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument
Debt face amount			$ 40,000,000
Repayments of debt	$ 20,000,000
Debt instrument premium		$ 300,000

LEASES - Additional Information

LEASES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Operating Leased Assets [Line Items]
Total lease expense	$ 9.1	$ 10	$ 18.3	$ 19.6
Operating leases, weighted average remaining lease term	4 years 3 months 18 days		4 years 3 months 18 days		4 years 7 months 6 days
Operating leases, weighted average discount rate	1.62%		1.62%		1.64%
Minimum
Operating Leased Assets [Line Items]
Remaining lease terms			1 year
Maximum
Operating Leased Assets [Line Items]
Remaining lease terms			16 years

LEASES - Supplemental Cash Flow

LEASES - Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating cash outflows from operating leases	$ 19,050	$ 19,253
Right of use assets obtained in exchange for new operating lease liabilities	$ 11,389	$ 20,584

LEASES - Maturities of Lease Li

LEASES - Maturities of Lease Liabilities (Details) $ in Thousands	Dec. 31, 2021USD ($)
Operating Leases, After Adoption of 842
2022 (remaining six months)	$ 18,100
2023	27,797
2024	17,891
2025	12,716
2026	9,633
2027 and thereafter	12,798
Total lease payments	98,935
Less imputed interest	(3,915)
Total	$ 95,020

EQUITY, LONG-TERM INCENTIVE C_3

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Equity Incentive Program and Assumed Equity Plans (Details) - shares	Dec. 31, 2021	Jun. 30, 2021
2004 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares available for grant (in shares)	9,887,000	10,253,000
Assumed Equity Plans
Share-based Compensation Arrangement by Share-based Payment Award
Number of shares available for grant (in shares)	23,788

EQUITY, LONG-TERM INCENTIVE C_4

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Equity Incentive Plans General Information (Details) shares in Thousands	6 Months Ended
	Dec. 31, 2021shares
Restricted stock unit, Performance-based and Service-based | Senior Management
Total Shares Available for Grant under the Company's equity incentive plans:
Ending balance (in shares)	200
Number of shares available for grant (in shares)	200
2004 Plan
Total Shares Available for Grant under the Company's equity incentive plans:
Beginning balance (in shares)	10,253
Restricted stock units granted (in shares)	(467)
Restricted stock units granted adjustment (in shares)	39
Restricted stock units canceled (in shares)	62
Ending balance (in shares)	9,887
Impact on share reserve multiplier	2
Number of shares available for grant (in shares)	9,887
2004 Plan | Restricted stock unit, Performance-based and Service-based
Total Shares Available for Grant under the Company's equity incentive plans:
Ending balance (in shares)	100
Number of shares available for grant (in shares)	100

EQUITY, LONG-TERM INCENTIVE C_5

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Stock-based compensation expense
Stock-based compensation expense	$ 27,766	$ 26,827	$ 52,982	$ 53,819
Stock-based compensation capitalized as inventory	7,400		7,400		$ 8,000
Costs of revenues
Stock-based compensation expense
Stock-based compensation expense	4,094	4,104	7,932	7,771
R&D
Stock-based compensation expense
Stock-based compensation expense	4,901	5,225	9,595	10,696
SG&A
Stock-based compensation expense
Stock-based compensation expense	$ 18,771	$ 17,498	$ 35,455	$ 35,352

EQUITY, LONG-TERM INCENTIVE C_6

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Restricted Stock Unit Activities (Details) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021USD ($)$ / sharesshares	Dec. 31, 2020$ / shares	Dec. 31, 2021USD ($)Installment$ / sharesshares	Dec. 31, 2020$ / shares	Jun. 30, 2021shares
Restricted stock units
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Restricted stock units granted, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 393.67	$ 220.53	$ 356.39	$ 202.60
Unrecognized stock-based compensation balance | $	$ 177.5		$ 177.5
Estimated weighted-average amortization period			1 year 4 months 24 days
Intrinsic value | $	$ 652.2		$ 652.2
Restricted stock unit, Performance-based and Service-based
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Service and performance-based, number of equal vesting installments | Installment			2
Restricted stock unit, Service-based | Minimum
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Share-based vesting period			2 years
Restricted stock unit, Service-based | Maximum
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Share-based vesting period			4 years
Restricted Stock Unit, Market-based and Service-based
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Service and performance-based, number of equal vesting installments | Installment			3
2004 Plan
Restricted Stock Units Activity Rollforward
Granted (in shares)			467
Granted adjustments (in shares)			39
Forfeited (in shares)			(62)
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Number of shares available for grant (in shares)	9,887		9,887		10,253
2004 Plan | Restricted stock units
Restricted Stock Units Activity Rollforward
Outstanding restricted stock units, beginning (in shares)			1,710
Granted (in shares)			234
Granted adjustments (in shares)			(19)
Vested and released (in shares)			(226)
Withheld for taxes (in shares)			(148)
Forfeited (in shares)			(35)
Outstanding restricted stock units, ending (in shares)	1,516		1,516
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Outstanding restricted stock units as of June 30, 2020, weighted-average grant date fair value (in dollars per share) | $ / shares			$ 133.76
Restricted stock units granted, weighted-average grant date fair value (in dollars per share) | $ / shares			356.39
Restricted stock units granted adjustments, weighted-average grant date fair value (in dollars per share) | $ / shares			118.47
Restricted stock units vested and released, weighted-average grant date fair value (in dollars per share) | $ / shares			126.60
Restricted stock units withheld for taxes, weighted-average grant date fair value (in dollars per share) | $ / shares			126.60
Restricted stock units forfeited, weighted-average grant date fair value (in dollars per share) | $ / shares			137.88
Outstanding restricted stock units as of September 30, 2020, weighted-average grant date fair value (in dollars per share) | $ / shares	$ 169.87		$ 169.87
2004 Plan | Restricted stock unit, Performance-based and Service-based
Restricted Stock Units Activity, Weighted Average Grant Date Fair Value Rollforward
Number of shares available for grant (in shares)	100		100

EQUITY, LONG-TERM INCENTIVE C_7

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Weighted-Average Grant Date Fair Value (Details) - Restricted stock units - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award
Weighted-average grant date fair value per unit (in dollars per share)	$ 393.67	$ 220.53	$ 356.39	$ 202.60
Grant date fair value of vested RSUs	$ 10,563	$ 23,267	$ 47,303	$ 50,569
Tax benefits realized by us in connection with vested and released RSUs	$ 4,913	$ 6,694	$ 13,921	$ 13,431

EQUITY, LONG-TERM INCENTIVE C_8

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Cash-Based Long-Term Incentive Compensation (Details) - Cash long-term incentive plan $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2021USD ($)Installment	Dec. 31, 2020USD ($)
Cash Long-Term Incentive Plan
Cash-based long-term incentive plan, authorized amount			$ 12.9	$ 4.1
Cash long-term incentive plan, compensation expense	$ 22.2	$ 17.3	44	$ 36.7
Cash long-term incentive plan, unrecognized compensation balance	$ 184.5		$ 184.5
Minimum
Cash Long-Term Incentive Plan
Cash long-term incentive plan, equal vesting installments | Installment			3
Cash long-term incentive plan, vesting period			3 years
Cash long-term incentive plan, percentage of equal vesting installments			33.33%
Maximum
Cash Long-Term Incentive Plan
Cash long-term incentive plan, equal vesting installments | Installment			4
Cash long-term incentive plan, vesting period			4 years
Cash long-term incentive plan, percentage of equal vesting installments			25.00%

EQUITY, LONG-TERM INCENTIVE C_9

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Employee Stock Purchase Plan (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award
ESPP, offering period			6 months
Employee Stock Purchase Plan Additional Information
ESPP maximum annual share replenishment (in shares)	2,000		2,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
ESPP maximum employee subscription rate	15.00%		15.00%
ESPP, discount from market price, lesser of commencement of offering period or purchase date			85.00%
ESPP, Fair Value Assumptions and Methodology
Expected stock price volatility	34.90%	51.90%	34.90%	51.90%
Risk-free interest rate	0.10%	0.70%	0.10%	0.70%
Dividend yield	1.40%	1.90%	1.40%	1.90%
Expected life (in years)	6 months	6 months	6 months	6 months
Employee Stock Purchase Plan Additional Information
Total cash received from employees for the issuance of shares under the ESPP	$ 36,912	$ 26,356	$ 36,912	$ 26,356
Number of shares purchased by employees through the ESPP (in shares)	139	161	139	161
Tax benefits realized by us in connection with the disqualifying dispositions of shares purchased under the ESPP	$ 231	$ 272	$ 1,198	$ 1,164
Weighted-average fair value per share based on Black-Scholes model (in dollars per share)	$ 71.82	$ 52.23	$ 71.82	$ 52.23
Number of shares available for grant (in shares)	2,100		2,100

EQUITY, LONG-TERM INCENTIVE _10

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Cash Dividends (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 01, 2021	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Dividends Payable
Cash dividends declared (in dollars per share)	$ 1.05		$ 1.05	$ 0.90	$ 0.90
Restricted stock unit, Performance-based and Service-based
Dividends Payable
Dividends payable		$ 10.4				$ 10.4		$ 10.3
Additional paid-in capital
Dividends Payable
Payment of dividends		$ 159.1		$ 139.6		$ 322	$ 280.7

EQUITY, LONG-TERM INCENTIVE _11

EQUITY, LONG-TERM INCENTIVE COMPENSATION PLANS AND NON-CONTROLLING INTEREST - Non-controlling Interest (Details)	Dec. 31, 2021
Orbograph
Noncontrolling Interest [Line Items]
Non-controlling interest, ownership	94.00%
OLTS
Noncontrolling Interest [Line Items]
Non-controlling interest, ownership	97.00%

STOCK REPURCHASE PROGRAM (Detai

STOCK REPURCHASE PROGRAM (Details) - USD ($) shares in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Jul. 29, 2021	Jun. 30, 2021
Equity, Class of Treasury Stock
Remaining shares authorized to be repurchased, amount	$ 1,260,000,000				$ 1,260,000,000			$ 93,000,000
Shares authorized to be repurchased, amount							$ 2,000,000,000
Total cost of repurchases	$ 429,874,000	$ 399,677,000	$ 177,492,000	$ 193,897,000	$ 829,551,000	$ 371,389,000
Common Stock and Capital in Excess of Par Value, Shares
Equity, Class of Treasury Stock
Number of shares of common stock repurchased (in shares)	1,104	1,190	774	1,027	2,294	1,801

NET INCOME PER SHARE (Details)

NET INCOME PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net income attributable to KLA	$ 717,444	$ 1,068,417	$ 457,251	$ 420,567	$ 1,785,861	$ 877,818
Denominator:
Weighted-average shares - basic, excluding unvested RSU's (in shares)	151,251		154,273		151,791	154,777
Effect of dilutive RSU's and options (in shares)	1,080		1,287		1,095	1,280
Weighted-average shares - diluted (in shares)	152,331		155,560		152,886	156,057
Basic net income per share attributable to KLA (in dollars per share)	$ 4.74		$ 2.96		$ 11.77	$ 5.67
Diluted net income per share attributable to KLA (in dollars per share)	$ 4.71		$ 2.94		$ 11.68	$ 5.62
Anti-dilutive securities excluded from the computation of diluted net income per share (in shares)	0		0		5	0

INCOME TAXES - Details of Incom

INCOME TAXES - Details of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income before income taxes	$ 926,905	$ 527,402	$ 1,693,253	$ 1,011,208
Provision (benefit) for income taxes	$ 209,388	$ 70,419	$ (92,749)	$ 134,083
Effective tax rate	22.60%	13.40%	(5.50%)	13.30%

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Details) $ in Thousands, ₪ in Millions	1 Months Ended		3 Months Ended	6 Months Ended		38 Months Ended
	Dec. 31, 2020USD ($)	Dec. 31, 2020ILS (₪)	Dec. 31, 2021USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2020ILS (₪)	Aug. 31, 2018USD ($)	Aug. 31, 2018ILS (₪)
Income Tax Examination
Deferred tax expense (benefits)				$ (371,228)	$ (39,507)
Foreign Tax Authority
Income Tax Examination
Deferred tax expense (benefits)			$ 163,700	$ (394,500)
Tax deductible amortization period				15 years
Foreign Tax Authority | ITA
Income Tax Examination
Income tax examination, estimate of possible loss	$ 68,000	₪ 227				$ 66,000
Penalties and interest accrued								$ 73,000	₪ 257
Foreign Tax Authority | ITA | Orbotech
Income Tax Examination
Income tax examination, estimate of possible loss | ₪							₪ 229

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2021USD ($)Installment	Dec. 31, 2020USD ($)
Receivables Sold Under Factoring Agreements and Proceeds from Sales of LC
Receivables sold under factoring agreements	$ 79,918	$ 49,917	$ 147,036	$ 138,562
Proceeds from sales of LC	19,493	$ 21,709	41,166	$ 40,839
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Purchase commitments	$ 2,500,000		2,500,000
Purchase commitment, period	12 months
Cash-based long-term incentive plan, committed amount	$ 245,500		245,500
Guarantee arrangements to fund customs guarantees for VAT and other operating requirements	84,700		84,700
Outstanding guarantee arrangements to fund customs authorities for VAT and other operating requirements	$ 59,500		$ 59,500
Minimum | Cash long-term incentive plan
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Cash long-term incentive plan, equal vesting installments | Installment			3
Cash long-term incentive plan, percentage of equal vesting installments			33.33%
Cash long-term incentive plan, vesting period			3 years
Maximum | Cash long-term incentive plan
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits
Cash long-term incentive plan, equal vesting installments | Installment			4
Cash long-term incentive plan, percentage of equal vesting installments			25.00%
Cash long-term incentive plan, vesting period			4 years

DERIVATIVE INSTRUMENTS AND HE_3

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021USD ($)derivativeInstrument	Dec. 31, 2020USD ($)	Dec. 31, 2021USD ($)derivativeInstrument	Dec. 31, 2020USD ($)	Mar. 31, 2020USD ($)	Jan. 31, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2015USD ($)
Derivative
Reclassification adjustments increased interest expense on a net basis	$ 912	$ (1,115)	$ 2,130	$ (1,061)
Treasury lock
Derivative
Reclassification adjustments increased interest expense on a net basis	$ 300	$ 300	$ 600	$ 600
Number of derivative instruments held | derivativeInstrument	3		3
Derivatives designated as hedging instruments | Cash Flow Hedging | 2020 Rate Lock Agreements
Derivative
Derivative, notional amount						$ 350,000
Cash flow hedges derivative at fair value					$ (21,500)
Derivatives designated as hedging instruments | Cash Flow Hedging | Treasury lock
Derivative
Cash flow hedges derivative at fair value							$ (13,600)	$ 7,500
Unamortized portion of the fair value of derivative contracts	$ 28,400		$ 28,400
Maximum | Derivatives designated as hedging instruments | Cash Flow Hedging
Derivative
Term of contract			18 months

DERIVATIVE INSTRUMENTS AND HE_4

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Gains (Losses) on Derivatives in Cash Flow Hedging Relationships Recognized in OCI (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Derivative
Amounts included in the assessment of effectiveness	$ 6,741,000	$ (1,357,000)	$ 7,593,000	$ (2,275,000)
Foreign exchange contracts
Derivative
Amounts included in the assessment of effectiveness	6,749,000	(1,310,000)	7,602,000	(2,182,000)
Amounts excluded from the assessment of effectiveness	(8,000)	(47,000)	(9,000)	(93,000)
Gains (losses) on derivatives in net investment hedging recognized in OCI	(293,000)	0	$ 357,000	$ 0
Foreign exchange contracts | Net investment hedging
Derivative
Amounts excluded from the assessment of effectiveness	$ 0	$ 0

DERIVATIVE INSTRUMENTS AND HE_5

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Locations and Amounts of Designated and Non-Designated Derivative's Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments
Revenues	$ 2,352,630	$ 1,650,870	$ 4,436,468	$ 3,189,490
Costs of revenues and operating expenses	1,386,672	1,080,706	2,651,710	2,092,937
Interest expense	37,852	38,880	76,164	78,266
Other expense (income), net	1,201	3,882	15,341	7,079
Amount of gains (losses) reclassified from AOCI to earnings	912	(1,115)	2,130	(1,061)
Rate lock contracts | Revenues
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	0	0	0	0
Rate lock contracts | Costs of Revenues and Operating Expenses
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	0	0	0	0
Rate lock contracts | Interest Expense
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	(279)	(279)	(558)	(558)
Rate lock contracts | Other Expense (Income), Net
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	0	0	0	0
Foreign exchange contracts | Revenues
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	1,643	(560)	3,486	(650)
Amount excluded from the assessment of effectiveness recognized in earnings	(104)	(151)	(218)	(278)
Amount of gains (losses) recognized in earnings	0	0	0	0
Foreign exchange contracts | Costs of Revenues and Operating Expenses
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	(348)	(125)	(580)	425
Amount excluded from the assessment of effectiveness recognized in earnings	0	0	0	0
Amount of gains (losses) recognized in earnings	0	0	0	0
Foreign exchange contracts | Interest Expense
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	0	0	0	0
Amount excluded from the assessment of effectiveness recognized in earnings	0	0	0	0
Amount of gains (losses) recognized in earnings	0	0	0	0
Foreign exchange contracts | Other Expense (Income), Net
Derivative Instruments
Amount of gains (losses) reclassified from AOCI to earnings	0	0	0	0
Amount excluded from the assessment of effectiveness recognized in earnings	658	0	1,315	0
Amount of gains (losses) recognized in earnings	$ 5,994	$ 2,661	$ 7,063	$ (2,937)

DERIVATIVE INSTRUMENTS AND HE_6

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Notional Amount (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2021	Dec. 31, 2021	Jun. 30, 2021
Derivative
Remaining maturity	11 months	11 months
Derivatives designated as hedging instruments | Purchase | Other foreign currency hedge contracts
Derivative
Derivative, notional amount		$ 386,460	$ 264,292
Derivatives designated as hedging instruments | Purchase | Cash Flow Hedging | Foreign exchange contracts
Derivative
Derivative, notional amount		125,914	12,550
Derivatives designated as hedging instruments | Sell | Other foreign currency hedge contracts
Derivative
Derivative, notional amount		342,420	278,635
Derivatives designated as hedging instruments | Sell | Cash Flow Hedging | Foreign exchange contracts
Derivative
Derivative, notional amount		177,766	134,845
Derivatives designated as hedging instruments | Sell | Net Investment Hedging | Foreign exchange contracts
Derivative
Derivative, notional amount		$ 66,848	$ 66,848

DERIVATIVE INSTRUMENTS AND HE_7

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Derivative Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	$ 14,039	$ 8,252
Liability derivatives fair value	3,817	2,807
Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	14,039	8,252
Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Liability derivatives fair value	(3,817)	2,807
Derivatives designated as hedging instruments | Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	8,057	3,940
Derivatives designated as hedging instruments | Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Liability derivatives fair value	(175)	272
Derivatives not designated as hedging instruments | Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	5,982	4,312
Derivatives not designated as hedging instruments | Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Liability derivatives fair value	(3,642)	2,535
Foreign exchange contracts | Derivatives designated as hedging instruments | Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	8,057	3,940
Foreign exchange contracts | Derivatives designated as hedging instruments | Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Liability derivatives fair value	(175)	272
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other current assets
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Asset derivatives fair value	5,982	4,312
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other current liabilities
Derivative Assets and Liabilities, at Fair Value, Net, by Balance Sheet Classification
Liability derivatives fair value	$ (3,642)	$ 2,535

DERIVATIVE INSTRUMENTS AND HE_8

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Changes of OCI, Before Taxes, Related to Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance			$ 3,377,554
Ending balance	$ 4,048,527		4,048,527
AOCI, derivative
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(25,546)	$ (30,574)	(25,830)	$ (29,602)
Amount reclassified to earnings as net (gains) losses	(912)	1,115	(2,130)	1,061
Net change in unrealized gains (losses)	5,627	(1,357)	7,129	(2,275)
Ending balance	$ (20,831)	$ (30,816)	$ (20,831)	$ (30,816)

DERIVATIVE INSTRUMENTS AND HE_9

DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting of Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Derivatives - Assets
Derivative - Assets, Gross Amounts of Derivatives	$ 14,039	$ 8,252
Derivatives - Assets, Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets	0	0
Derivatives - Assets, Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets	14,039	8,252
Derivatives - Assets, Financial Instruments	(3,427)	(2,492)
Derivatives - Assets, Cash Collateral Received	0	0
Derivatives - Assets, Net Amount	10,612	5,760
Derivatives - Liabilities
Derivatives - Liabilities, Gross Amounts of Derivatives	(3,817)	(2,807)
Derivatives - Liabilities, Gross Amounts of Derivatives Offset in the Condensed Consolidated Balance Sheets	0	0
Derivatives - Liabilities, Net Amount of Derivatives Presented in the Condensed Consolidated Balance Sheets	(3,817)	(2,807)
Derivatives - Liabilities, Financial Instruments	3,427	2,492
Derivatives - Liabilities, Cash Collateral Received	0	0
Derivatives - Liabilities, Net Amount	$ (390)	$ (315)

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Related Party Transactions [Abstract]
Total revenues	$ 264	$ 324	$ 623	$ 638
Total purchases	193	$ 279	272	$ 571
Accounts receivables	$ 900		$ 900		$ 1,300

SEGMENT REPORTING AND GEOGRAP_3

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Additional Information (Details) - segment	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting and Geographic Information
Number of reportable segments			4
Number of operating segments			6
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Largest Customer
Segment Reporting and Geographic Information
Concentration risk, percentage	26.00%	14.00%	25.00%	14.00%
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Second Largest Customer
Segment Reporting and Geographic Information
Concentration risk, percentage	10.00%	14.00%		13.00%
Semiconductor Process Control
Segment Reporting and Geographic Information
Number of operating segments			2
Specialty Semiconductor Process
Segment Reporting and Geographic Information
Number of operating segments			1
PCB, Display and Component Inspection
Segment Reporting and Geographic Information
Number of operating segments			2
Other Segment
Segment Reporting and Geographic Information
Number of operating segments			1

SEGMENT REPORTING AND GEOGRAP_4

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Summary of Results for Reportable Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2021USD ($)segment	Dec. 31, 2020USD ($)
Segment Reporting and Geographic Information
Number of reportable segments | segment			4
Revenues	$ 2,352,630	$ 1,650,870	$ 4,436,468	$ 3,189,490
Operating segments
Segment Reporting and Geographic Information
Revenues	2,352,917	1,650,487	4,436,837	3,188,712
Segment gross profit	1,485,533	1,019,724	2,796,659	1,974,644
Operating segments | SPC:
Segment Reporting and Geographic Information
Revenues	2,052,202	1,380,184	3,831,285	2,648,138
Segment gross profit	1,342,937	884,090	2,504,866	1,698,900
Operating segments | Specialty Semiconductor Process
Segment Reporting and Geographic Information
Revenues	112,738	90,587	214,767	179,540
Segment gross profit	60,274	51,171	114,995	101,099
Operating segments | PCB, Display and Component Inspection
Segment Reporting and Geographic Information
Revenues	187,977	179,267	390,785	360,444
Segment gross profit	82,322	84,584	176,798	174,753
Operating segments | Other Segment
Segment Reporting and Geographic Information
Revenues	0	449	0	590
Segment gross profit	$ 0	$ (121)	$ 0	$ (108)

SEGMENT REPORTING AND GEOGRAP_5

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Reconciliation of Total Reportable Segments Revenue to Total Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 2,352,630	$ 1,650,870	$ 4,436,468	$ 3,189,490
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,352,917	1,650,487	4,436,837	3,188,712
Corporate allocations and effects of changes in foreign currency exchange rates
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ (287)	$ 383	$ (369)	$ 778

SEGMENT REPORTING AND GEOGRAP_6

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Reconciliation of Total Segment Gross Margin to Total Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Acquisition-related charges, corporate allocations, and effects of changes in foreign currency exchange rates	$ 41,065	$ 38,587	$ 81,977	$ 75,449
R&D	265,031	229,064	523,184	448,102
SG&A	213,479	181,909	406,740	354,540
Interest expense	37,852	38,880	76,164	78,266
Other expense (income), net	1,201	3,882	15,341	7,079
Income before income taxes	926,905	527,402	1,693,253	1,011,208
Operating segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total segment gross profit	$ 1,485,533	$ 1,019,724	$ 2,796,659	$ 1,974,644

SEGMENT REPORTING AND GEOGRAP_7

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Schedule of Revenue from External Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting and Geographic Information
Revenues	$ 2,352,630	$ 1,650,870	$ 4,436,468	$ 3,189,490
China
Segment Reporting and Geographic Information
Revenues	544,537	382,157	562,278	868,246
Taiwan
Segment Reporting and Geographic Information
Revenues	776,442	380,785	1,403,526	749,886
Korea
Segment Reporting and Geographic Information
Revenues	323,095	347,947	1,229,693	537,465
North America
Segment Reporting and Geographic Information
Revenues	271,594	214,808	449,334	384,984
Japan
Segment Reporting and Geographic Information
Revenues	196,282	156,721	371,449	321,140
Rest of Asia
Segment Reporting and Geographic Information
Revenues	65,485	68,251	262,635	144,451
Europe and Israel
Segment Reporting and Geographic Information
Revenues	$ 175,195	$ 100,201	$ 157,553	$ 183,318
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark
Segment Reporting and Geographic Information
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | China
Segment Reporting and Geographic Information
Concentration risk, percentage	23.00%	23.00%	13.00%	27.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | Taiwan
Segment Reporting and Geographic Information
Concentration risk, percentage	33.00%	23.00%	31.00%	24.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | Korea
Segment Reporting and Geographic Information
Concentration risk, percentage	14.00%	21.00%	28.00%	17.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | North America
Segment Reporting and Geographic Information
Concentration risk, percentage	12.00%	13.00%	10.00%	12.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | Japan
Segment Reporting and Geographic Information
Concentration risk, percentage	8.00%	10.00%	8.00%	10.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | Rest of Asia
Segment Reporting and Geographic Information
Concentration risk, percentage	3.00%	4.00%	6.00%	4.00%
Geographic Concentration Risk | Revenue from Contract with Customer Benchmark | Europe and Israel
Segment Reporting and Geographic Information
Concentration risk, percentage	7.00%	6.00%	4.00%	6.00%

SEGMENT REPORTING AND GEOGRAP_8

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Revenue from External Customers by Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenue from External Customer
Revenues	$ 2,352,630	$ 1,650,870	$ 4,436,468	$ 3,189,490
Wafer Inspection
Revenue from External Customer
Revenues	1,104,032	687,030	1,991,544	1,206,581
Patterning
Revenue from External Customer
Revenues	508,785	307,512	948,376	678,444
Specialty Semiconductor Process
Revenue from External Customer
Revenues	104,932	71,978	198,052	146,005
PCB, Display and Component Inspection
Revenue from External Customer
Revenues	121,750	115,825	259,637	236,451
Services
Revenue from External Customer
Revenues	456,861	412,847	910,811	805,972
Other
Revenue from External Customer
Revenues	$ 56,270	$ 55,678	$ 128,048	$ 116,037
Product Concentration Risk | Revenue from Contract with Customer Benchmark
Revenue from External Customer
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Product Concentration Risk | Revenue from Contract with Customer Benchmark | Wafer Inspection
Revenue from External Customer
Concentration risk, percentage	48.00%	42.00%	45.00%	38.00%
Product Concentration Risk | Revenue from Contract with Customer Benchmark | Patterning
Revenue from External Customer
Concentration risk, percentage	22.00%	19.00%	21.00%	21.00%
Product Concentration Risk | Revenue from Contract with Customer Benchmark | Specialty Semiconductor Process
Revenue from External Customer
Concentration risk, percentage	4.00%	4.00%	4.00%	5.00%
Product Concentration Risk | Revenue from Contract with Customer Benchmark | PCB, Display and Component Inspection
Revenue from External Customer
Concentration risk, percentage	5.00%	7.00%	6.00%	7.00%
Product Concentration Risk | Revenue from Contract with Customer Benchmark | Services
Revenue from External Customer
Concentration risk, percentage	19.00%	25.00%	21.00%	25.00%
Product Concentration Risk | Revenue from Contract with Customer Benchmark | Other
Revenue from External Customer
Concentration risk, percentage	2.00%	3.00%	3.00%	4.00%

SEGMENT REPORTING AND GEOGRAP_9

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Land, Property and Equipment, Net by Geographic Region (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Revenues from External Customers and Long-Lived Assets
Land, property and equipment, net	$ 717,178	$ 663,027
United States
Revenues from External Customers and Long-Lived Assets
Land, property and equipment, net	490,597	447,359
Singapore
Revenues from External Customers and Long-Lived Assets
Land, property and equipment, net	79,880	76,882
Israel
Revenues from External Customers and Long-Lived Assets
Land, property and equipment, net	65,269	57,403
Europe
Revenues from External Customers and Long-Lived Assets
Land, property and equipment, net	55,262	56,895
Rest of Asia
Revenues from External Customers and Long-Lived Assets
Land, property and equipment, net	$ 26,170	$ 24,488

RESTRUCTURING CHARGES (Details)

RESTRUCTURING CHARGES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2021
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 0.5	$ 4.6	$ 0.9	$ 8.1
Restructuring reserve	$ 2.9		$ 2.9		$ 3.3
Accelerated depreciation charges		$ 1		$ 2

Uncategorized Items - klac-2021

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2016-13 [Member]