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BASIS OF PRESENTATION (Policies) | 9 Months Ended
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Mar. 31, 2019
Accounting Policies [Abstract] |
Consolidation | The condensed consolidated financial statements include the accounts of Lam Research and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Fiscal Period | The Company’s reporting period is a 52/53-week fiscal year. The Company’s current fiscal year will end June 30, 2019 and includes 53 weeks.
Recent Accounting Pronouncements | Recently Adopted In May 2014, the FASB released ASU 2014-09, “Revenue from Contracts with Customers,” to supersede nearly all existing revenue recognition guidance under GAAP. The FASB issued subsequent amendments to the initial guidance in August 2015, March 2016, April 2016, May 2016 and December 2016 within ASU 2015–14, ASU 2016–08, ASU 2016–10, ASU 2016–12 and ASU 2016–20, respectively; all of which in combination with ASU 2014-09 were codified as Accounting Standard Codification Topic 606 (“ASC 606”). The core principle of the standard is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The Company adopted ASC 606 on the first day of the current fiscal year, June 25, 2018, under the modified retrospective approach, applying the amendments to prospective reporting periods. Results for reporting periods beginning on or after June 25, 2018 are presented under ASC 606, while prior period amounts are not adjusted and continue to be reported in accordance with the historic accounting under ASC 605. In conjunction with the adoption of ASC 606, the Company’s revenue recognition policy has been amended, refer to Note 3 - Revenue for a description of the amendments. The cumulative effect of the changes made to the Company’s Condensed Consolidated Balance Sheet as of June 25, 2018 for the adoption of ASC 606 to all contracts with customers that were not completed as of June 24, 2018 was recorded as an adjustment to retained earnings as of the adoption date as follows:
| June 24, 2018 |  |  |  | June 25, 2018
| As reported |  | Adjustments |  | As Adjusted
| (In thousands)
Total assets | $ | 12,479,478 |  |  | $ | 12,955 |  |  | $ | 12,492,433 |
Deferred profit | $ | 720,086 |  |  | $ | (160,695 | ) |  | $ | 559,391 |
Total liabilities | $ | 5,899,435 |  |  | $ | (126,400 | ) |  | $ | 5,773,035 |
Stockholders' equity | $ | 6,501,851 |  |  | $ | 139,355 |  |  | $ | 6,641,206 |
Upon adoption, the Company recorded a cumulative effect adjustment of $139.4 million, net of tax adjustment of $21.0 million, which increased the June 25, 2018 opening retained earnings balance on the Condensed Consolidated Balance Sheet, primarily as a result of changes in the timing of recognition of system sales. Under ASC 606, the Company recognizes revenue from sales of systems when the Company determines that control has passed to the customer which is generally (1) for products that have been demonstrated to meet product specifications prior to shipment upon shipment or delivery; (2) for products that have not been demonstrated to meet product specifications prior to shipment, revenue is recognized upon completion of installation and receipt of customer acceptance; (3) for transactions where legal title does not pass upon shipment or delivery and the Company does not have a right to payment, revenue is recognized when legal title passes to the customer and the Company has a right to payment, which is generally at customer acceptance. The impact of adoption of ASC 606 on the Company's Condensed Consolidated Statement of Operations and Condensed Consolidated Balance Sheet was as follows:
| Three months ended |  | Nine Months Ended
| March 31, 2019 |  | March 31, 2019
| As Reported |  | Without adoption of ASC 606 |  | Effect of Change Higher/(Lower) |  | As Reported |  | Without adoption of ASC 606 |  | Effect of Change Higher/(Lower)
| (In thousands)
Revenue | $ | 2,439,048 |  |  | $ | 2,203,034 |  |  | $ | 236,014 |  |  | $ | 7,292,412 |  |  | $ | 6,691,212 |  |  | $ | 601,200 |
Cost of goods sold | $ | 1,364,711 |  |  | $ | 1,213,852 |  |  | $ | 150,859 |  |  | $ | 4,014,844 |  |  | $ | 3,705,203 |  |  | $ | 309,641 |
|  |  | March 31, 2019
|  |  |  |  |  |  | As Reported |  | Without adoption of ASC 606 |  | Effect of Change Higher/(Lower)
|  |  |  |  |  |  | (In thousands)
Deferred profit |  |  |  |  |  |  | $ | 378,396 |  |  | $ | 809,712 |  |  | $ | (431,316 | )
Retained earnings |  |  |  |  |  |  | $ | 9,547,961 |  |  | $ | 9,116,645 |  |  | $ | 431,316 |
Except as disclosed above, the adoption of ASC 606 did not have a significant impact on the Company’s Condensed Consolidated Statement of Operations for the three and nine months ended March 31, 2019. In January 2016, the FASB released ASU 2016-01, “Financial Instruments – Overall – Recognition and Measurement of Financial Assets and Financial Liabilities.” The FASB issued a subsequent amendment to the initial guidance in February 2018 within ASU 2018-03. These amendments change the accounting for and financial statement presentation of equity investments, other than those accounted for under the equity method of accounting or those that result in consolidation of the investee. The amendments provide clarity on the measurement methodology to be used for the required disclosure of fair value of financial instruments measured at amortized cost on the balance sheet and clarifies that an entity should evaluate the need for a valuation allowance on deferred tax assets related to available-for-sale securities in combination with the entity’s other deferred tax assets, among other changes. The Company’s adoption of this standard in the first quarter of fiscal year 2019 did not have a material impact on its Condensed Consolidated Financial Statements. In August 2016, the FASB released ASU 2016-15, “Statement of Cash Flows – Classification of Certain Cash Receipts and Cash Payments.” The amendment provides and clarifies guidance on the classification of certain cash receipts and cash payments in the statement of cash flows to eliminate diversity in practice. The Company adopted this standard update in the first quarter of fiscal year 2019 using a retrospective transition method. The Company’s adoption of this standard did not have a material impact on its Condensed Consolidated Financial Statements. In October 2016, the FASB released ASU 2016-16, “Income Tax – Intra-Entity Transfers of Assets Other than Inventory.” This standard update improves the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. The Company adopted this standard in the first quarter of fiscal year 2019 using a modified-retrospective approach through a cumulative-effect adjustment directly to retained earnings. The Company’s adoption of this standard resulted in a $0.4 million decrease to retained earnings and a corresponding $0.4 million increase to other assets on its Condensed Consolidated Financial Statements. In November 2016, the FASB released ASU 2016-18, “Statement of Cash Flows – Restricted Cash.” This standard update requires that restricted cash and restricted cash equivalents be included in cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown in the statement of cash flows. The Company adopted this standard in the first quarter of fiscal year 2019, using a retrospective transition method to each period presented. The adoption of this standard did not have a material impact on its Condensed Consolidated Financial Statements. In February 2018, the FASB released ASU 2018-02, “Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” This standard update addresses a specific consequence of the Tax Cuts and Jobs Act (“U.S Tax Reform”) and allows a reclassification from accumulated other comprehensive income to retained earnings for the stranded tax effects resulting from U.S. tax reform. Consequently, the update eliminates the stranded tax effects that were created as a result of the historical U.S. federal corporate income tax rate to the newly enacted U.S. federal corporate income tax rate. The Company adopted this standard in the first quarter of fiscal year 2019 using a modified-retrospective approach through a cumulative-effect adjustment directly to retained earnings. The adoption of this standard resulted in a $2.2 million increase to retained earnings, with a corresponding $2.2 million decrease to other comprehensive income. In August 2018, the Securities and Exchange Commission (“SEC”) adopted amendments to eliminate, integrate, update or modify certain of its disclosure requirements. The amendments are part of the SEC’s efforts to improve disclosure effectiveness and were focused on eliminating disclosure requirements that have become redundant, duplicative, overlapping, outdated, or superseded. The Company adopted these amendments in the first quarter of fiscal Year 2019 and as a result the Company has included a Condensed Consolidated Statement of Stockholders’ Equity to this quarterly report on Form 10-Q. The Company expects that the Company’s 2019 annual report on Form 10-K will omit a number of disclosures previously required in Part II. Item 5. Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities, as well as other minor changes. Updates Not Yet Effective In January 2016, the FASB released ASU 2016-02, “Leases.” The FASB issued a subsequent amendment to the initial guidance in January 2018 within ASU 2018-01. The core principle of the standard requires an entity to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. The amendment offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. The Company is required to adopt these standards starting in the first quarter of fiscal year 2020. In July 2018, the FASB issued ASU 2018-11, “Leases (Topic 842): Targeted Improvements,” which provides companies an optional adoption method to ASU 2016-02 whereby a company does not have to adjust comparative period financial statements for the new standard. The Company currently believes the most significant impact upon adoption will be the recognition of right-of-use assets and lease liabilities on the Company's Condensed Consolidated Balance Sheets for those leases currently classified as operating leases. As part of the Company’s assessment and implementation plan, the Company is evaluating and implementing changes to its systems, procedures, and controls. In June 2016, the FASB released ASU 2016-13, “Financial Instruments – Credit Losses.” The amendment revises the impairment model to utilize an expected loss methodology in place of the currently used incurred loss methodology, which will result in more timely recognition of losses on financial instruments, including but not limited to, available for sale debt securities and accounts receivable. The Company is required to adopt this standard starting in the first quarter of fiscal year 2021 using a modified-retrospective approach. Early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption on its Condensed Consolidated Financial Statements. In November 2018, the FASB issued ASU 2018-18, "Collaborative Arrangements (Topic 808).” The amendment clarifies that certain transactions between participants in a collaborative arrangement should be accounted for under Topic 606 when the counterparty is a customer for a good or service that is a distinct unit of account. The amendment also precludes entities from presenting consideration from transactions with a collaborator that is not a customer together with revenue recognized from contracts with customers. The Company is required to adopt this standard starting in the first quarter of fiscal year 2021. The standard should be applied retrospectively to the period when the Company initially adopted ASC 606. The Company is currently evaluating the impact of adoptions on its Condensed Consolidated Financial Statements.
Inventories | Inventories are stated at the lower of cost (first-in, first-out method) or net realizable value. System shipments to customers in Japan, for which title does not transfer until customer acceptance, are classified as finished goods inventory and carried at cost until title transfers.
Warranties | The Company provides standard warranties on its systems. The liability amount is based on actual historical warranty spending activity by type of system, customer, and geographic region, modified for any known differences such as the impact of system reliability improvements.

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