10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2020

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     .

Commission File Number: 001-34791

MagnaChip Semiconductor Corporation

(Exact name of registrant as specified in its charter)

Delaware	83-0406195
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

c/o MagnaChip Semiconductor S.A.

1, Allée Scheffer, L-2520

Luxembourg, Grand Duchy of Luxembourg

(352) 45-62-62

(Address, zip code, and telephone number, including area code, of registrant’s principal executive offices)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	MX	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ☒  Yes    ☐  No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    ☒  Yes    ☐  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☒
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ☐  Yes    ☒  No

As of April 30, 2020, the registrant had 35,065,248 shares of common stock outstanding.

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

TABLE OF CONTENTS

		Page No.
PART I FINANCIAL INFORMATION			3
Item 1.	Interim Consolidated Financial Statements (Unaudited)		3
	MagnaChip Semiconductor Corporation and Subsidiaries Consolidated Balance Sheets as of March 31, 2020 and December 31, 2019		3
	MagnaChip Semiconductor Corporation and Subsidiaries Consolidated Statements of Operations for the Three Months Ended March 31, 2020 and 2019		4
	MagnaChip Semiconductor Corporation and Subsidiaries Consolidated Statements of Comprehensive Loss for the Three Months Ended March 31, 2020 and 2019		5
	MagnaChip Semiconductor Corporation and Subsidiaries Consolidated Statements of Changes in Stockholders’ Equity for the Three Months Ended March 31, 2020 and 2019		6
	MagnaChip Semiconductor Corporation and Subsidiaries Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2020 and 2019		7
	MagnaChip Semiconductor Corporation and Subsidiaries Notes to Consolidated Financial Statements		8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		28
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		45
Item 4.	Controls and Procedures		46
PART II OTHER INFORMATION			47
Item 1.	Legal Proceedings		47
Item 1A.	Risk Factors		47
Item 6.	Exhibits		48
SIGNATURES			49

2

PART I—FINANCIAL INFORMATION

Item 1. Interim Consolidated Financial Statements (Unaudited)

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (Unaudited)

	March 31, 2020			December 31, 2019
	(In thousands of US dollars, except share data)
Assets
Current assets
Cash and cash equivalents	$	157,293		$	151,657
Accounts receivable, net		60,688			47,447
Inventories, net		37,130			41,404
Other receivables		8,297			10,200
Prepaid expenses		11,148			9,003
Hedge collateral (Note 9)		13,270			9,820
Other current assets (Notes 10 and 18)		6,762			10,013
Current assets held for sale (Note 2)		201,619			99,821
Total current assets		496,207			379,365
Property, plant and equipment, net		67,201			73,068
Operating lease right-of-use assets		1,413			1,876
Intangible assets, net		2,583			2,769
Long-term prepaid expenses		4,117			5,757
Other non-current assets		8,439			9,059
Non-current assets held for sale (Note 2)		—			123,434
Total assets	$	579,960		$	595,328
Liabilities and Stockholders’ Equity
Current liabilities
Accounts payable	$	40,206		$	40,376
Other accounts payable		6,379			6,410
Accrued expenses		41,489			44,799
Operating lease liabilities		1,301			1,625
Current portion of long-term borrowings, net		82,328			—
Other current liabilities (Note 10)		6,982			3,583
Current liabilities held for sale (Note 2)		142,013			37,040
Total current liabilities		320,698			133,833
Long-term borrowings, net		223,012			304,743
Accrued severance benefits, net		48,765			51,181
Other non-current liabilities		8,641			9,671
Non-current liabilities held for sale (Note 2)		—			110,881
Total liabilities		601,116			610,309
Commitments and contingencies (Note 18)
Stockholders’ equity
Common stock, $0.01 par value, 150,000,000 shares authorized, 44,160,355 shares issued and 35,054,682 outstanding at March 31, 2020 and 43,851,991 shares issued and 34,800,312 outstanding at December 31, 2019		442			439
Additional paid-in capital		153,286			152,404
Accumulated deficit		(81,880	)		(58,131	)
Treasury stock, 9,105,673 shares at March 31, 2020 and 9,051,679 shares at December 31, 2019, respectively		(107,649	)		(107,033	)
Accumulated other comprehensive income (loss)		14,645			(2,660	)
Total stockholders’ deficit		(21,156	)		(14,981	)
Total liabilities and stockholders’ equity	$	579,960		$	595,328

The accompanying notes are an integral part of these consolidated financial statements.

3

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars, except share data)
Revenues:
Net sales – standard products business	$	110,736		$	100,264
Net sales – transitional Fab 3 foundry services		9,737			7,003
Total revenues		120,473			107,267
Cost of sales:
Cost of sales – standard products business		81,606			81,241
Cost of sales – transitional Fab 3 foundry services		9,737			7,003
Total cost of sales		91,343			88,244
Gross profit		29,130			19,023
Operating expenses:
Selling, general and administrative expenses		12,102			12,036
Research and development expenses		10,509			12,044
Other charges		554			—
Total operating expenses		23,165			24,080
Operating income (loss)		5,965			(5,057	)
Interest expense		(5,607	)		(5,637	)
Foreign currency loss, net		(30,971	)		(10,610	)
Loss on early extinguishment of long-term borrowings, net		—			(42	)
Other income, net		838			587
Loss from continuing operations before income tax expense		(29,775	)		(20,759	)
Income tax expense		1,303			796
Loss from continuing operations		(31,078	)		(21,555	)
Income (loss) from discontinued operations, net of tax		7,329			(12,570	)
Net loss	$	(23,749	)	$	(34,125	)
Basic and diluted earnings (loss) per common share—
Continuing operations	$	(0.89	)	$	(0.63	)
Discontinued operations		0.21			(0.37	)
Total	$	(0.68	)	$	(1.00	)
Weighted average number of shares – basic and diluted		34,893,157			34,194,878

The accompanying notes are an integral part of these consolidated financial statements.

4

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited)

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Net loss	$	(23,749	)	$	(34,125	)
Other comprehensive income (loss)
Foreign currency translation adjustments		22,251			7,304
Derivative adjustments
Fair valuation of derivatives		(5,004	)		(499	)
Reclassification adjustment for loss on derivatives included in net loss		58			187
Total other comprehensive income		17,305			6,992
Total comprehensive loss	$	(6,444	)	$	(27,133	)

The accompanying notes are an integral part of these consolidated financial statements.

5

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Unaudited)

						Additional Paid-In Capital									Accumulated Other Comprehensive Income (Loss)
	Common Stock								Accumulated Deficit			Treasury Stock						Total
(In thousands of US dollars, except share data)	Shares			Amount
Three Months Ended March 31, 2020:
Balance at December 31, 2019, as previously reported		34,800,312		$	439	$	152,404		$	(58,131	)	$	(107,033	)	$	(2,660	)	$	(14,981	)
Stock-based compensation		—			—		885			—			—			—			885
Settlement of restricted stock units		308,364			3		(3	)		—			—			—			—
Acquisition of treasury stock		(53,994	)		—		—			—			(616	)		—			(616	)
Other comprehensive income, net		—			—		—			—			—			17,305			17,305
Net loss		—			—		—			(23,749	)		—			—			(23,749	)
Balance at March 31, 2020		35,054,682		$	442	$	153,286		$	(81,880	)	$	(107,649	)	$	14,645		$	(21,156	)
Three Months Ended March 31, 2019:
Balance at December 31, 2018, as previously reported		34,441,232		$	431	$	142,600		$	(36,305	)	$	(103,926	)	$	(20,110	)	$	(17,310	)
Stock-based compensation		—			—		669			—			—			—			669
Exercise of stock options		8,624			0		48			—			—			—			48
Settlement of restricted stock units		167,453			2		(2	)		—			—			—			—
Acquisition of treasury stock		(393,807	)		—		—			—			(2,585	)		—			(2,585	)
Other comprehensive income, net		—			—		—			—			—			6,992			6,992
Net loss		—			—		—			(34,125	)		—			—			(34,125	)
Balance at March 31, 2019		34,223,502		$	433	$	143,315		$	(70,430	)	$	(106,511	)	$	(13,118	)	$	(46,311	)

The accompanying notes are an integral part of these consolidated financial statements.

6

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Cash flows from operating activities
Net loss	$	(23,749	)	$	(34,125	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation and amortization		7,935			8,303
Provision for severance benefits		5,071			3,117
Amortization of debt issuance costs and original issue discount		598			571
Loss on foreign currency, net		38,480			11,720
Restructuring and other charges		2,138			2,822
Provision for inventory reserves		570			4,645
Stock-based compensation		885			669
Loss on early extinguishment of long-term borrowings, net		—			42
Other		107			96
Changes in operating assets and liabilities
Accounts receivable, net		(10,430	)		(12,844	)
Unbilled accounts receivable, net		6,937			9,726
Inventories		(4,863	)		(15,230	)
Other receivables		1,982			(4,205	)
Other current assets		909			1,836
Accounts payable		1,988			20,874
Other accounts payable		(1,817	)		2,797
Accrued expenses		(6,611	)		(5,365	)
Other current liabilities		1,062			(6,293	)
Other non-current liabilities		1,808			1,085
Payment of severance benefits		(2,080	)		(2,263	)
Other		148			347
Net cash provided by (used in) operating activities		21,068			(11,675	)
Cash flows from investing activities
Proceeds from settlement of hedge collateral		4,239			2,242
Payment of hedge collateral		(7,841	)		—
Purchase of property, plant and equipment		(3,351	)		(11,207	)
Payment for intellectual property registration		(229	)		(232	)
Collection of guarantee deposits		47			298
Payment of guarantee deposits		—			(892	)
Other		8			(10	)
Net cash used in investing activities		(7,127	)		(9,801	)
Cash flows from financing activities
Repurchase of long-term borrowings		—			(1,175	)
Proceeds from exercise of stock options		—			48
Acquisition of treasury stock		(1,021	)		(2,353	)
Repayment of financing related to water treatment facility arrangement		(135	)		(143	)
Repayment of principal portion of finance lease liabilities		(60	)		(59	)
Net cash used in financing activities		(1,216	)		(3,682	)
Effect of exchange rates on cash and cash equivalents		(7,089	)		(1,468	)
Net increase (decrease) in cash and cash equivalents		5,636			(26,626	)
Cash and cash equivalents
Beginning of the period		151,657			132,438
End of the period	$	157,293		$	105,812
Supplemental cash flow information
Cash paid for interest	$	9,522		$	9,549
Cash paid for income taxes	$	1,534		$	1,556
Non-cash investing activities
Property, plant and equipment additions in other accounts payable	$	687		$	2,643
Non-cash financing activities
Acquisition of treasury stock to satisfy the tax withholding obligations in connection with equity-based compensation	$	—		$	(232	)

The accompanying notes are an integral part of these consolidated financial statements.

7

MAGNACHIP SEMICONDUCTOR CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(TABULAR DOLLARS IN THOUSANDS, EXCEPT SHARE DATA)

1. Business, Basis of Presentation and Significant Accounting Policies

Business

MagnaChip Semiconductor Corporation (together with its subsidiaries, the “Company”) is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, Internet of Things (“IoT”) applications, consumer, industrial and automotive applications. The Company provides technology platforms for analog, mixed signal, power, high voltage, non-volatile memory and Radio Frequency (“RF”) applications.

On March 30, 2020, the Company entered into a definitive Business Transfer Agreement (the “BTA”) for the sale of its Foundry Services Group business and its fabrication facility located in Cheongju (“Fab 4”), the larger of the Company’s two 8-inch manufacturing facilities, to Magnus Semiconductor, LLC, a Korean limited liability company, or one of its wholly owned subsidiaries (the “Buyer”) for a purchase price equal to the KRW equivalent of $344.7 million in cash, subject to working capital adjustments set forth in the BTA. The Buyer is a special purpose company formed by Alchemist Capital Partners Korea Co., Ltd. and Credian Partners, Inc. This planned divestiture of the Foundry Services Group business and Fab 4 will allow the Company to strategically shift its operational focus to its standard products business. The Foundry Services Group was historically a reportable segment. As a result of the entry into the BTA, the results of the Foundry Services Group were classified as discontinued operations in the Company’s consolidated statements of operations and excluded from both continuing operations and segment results for all periods presented. Accordingly, commencing with the first quarter of 2020, the Company has one reportable segment: its standard products business, together with transitional foundry services associated with its fabrication facility located in Gumi, Korea, known as “Fab 3,” that it expects to perform for the Buyer for a period of up to three years (the “Transitional Fab 3 Foundry Services”). The Company’s standard products business includes its Display Solutions and Power Solutions business lines. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and mobile, automotive applications and home appliances. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer and industrial applications.

Basis of Presentation

The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”). These interim consolidated financial statements include normal recurring adjustments and the elimination of all intercompany accounts and transactions which are, in the opinion of management, necessary to provide a fair statement of the Company’s financial condition and results of operations for the periods presented. These interim consolidated financial statements are presented in accordance with Accounting Standards Codification 270, “Interim Reporting” and, accordingly, do not include all of the information and note disclosures required by US GAAP for complete financial statements, except for the changes below. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results to be expected for a full year or for any other periods.

The Company has reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations to reflect the anticipated divestiture of its Foundry Services Group business and Fab 4. The assets to be acquired and liabilities to be transferred to the Buyer, as specified in the BTA, have been classified as assets and liabilities held for sale in the Company’s consolidated balance sheets, subject to adjustments set forth in the BTA. See Note 2 “Discontinued Operations and Assets Held for Sale” for additional information. The consolidated statements of cash flows have not been adjusted to separately disclose cash flows related to discontinued operations, but the material items in the operating and investing activities of cash flows relating to discontinued operations are disclosed in Note 2. Unless otherwise stated, information in these notes to consolidated financial statements relates to the Company’s continuing operations and excludes the discontinued operations.

There have been no material changes to the Company’s significant accounting policies as of and for the three months ended March 31, 2020, except for those related to discontinued operations and assets held for sale as described below, as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

8

Discontinued Operations and Assets Held for Sale

The Company reports the results of operations of a business as discontinued operations if a disposal represents a strategic shift that has or will have a major effect on the Company’s operations and financial results when the business is sold and classified as held for sale, in accordance with the criteria of Accounting Standard Codification (“ASC”) 205, “Presentation of Financial Statements” (“ASC 205”) and ASC 360, “Property, Plant and Equipment” (“ASC 360”). Assets and liabilities of a business classified as held for sale are recorded at the lower of its carrying amount or estimated fair value less costs to sell. If the carrying amount of the business exceeds its estimated fair value less costs to sell, a loss is recognized. Assets and liabilities related to discontinued operations classified as held for sale are segregated in the current and prior balance sheets in the period in which the business is classified as held for sale. The results of discontinued operations are reported in “Income (loss) from discontinued operations, net of tax” in the accompanying consolidated statements of operations for the current and prior periods commencing in the period in which the business meets the criteria.

Recent Accounting Pronouncements Not Yet Adopted

In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ASU 2019-12”). ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and improves consistent application of and simplifies GAAP for other areas of Topic 740 by clarifying and amending existing guidance. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company does not expect the adoption of ASU 2019-12 to have a material effect on the Company’s consolidated financial statements.

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued Accounting Standards Update No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 amends the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables. In April 2019, the FASB issued Accounting Standards Update No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments” (“ASU 2019-04”), and in November 2019, the FASB issued Accounting Standards Update No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses” (“ASU 2019-11”) to clarify and address certain items related to the amendments in ASU 2016-13. In February 2020, the FASB issued Accounting Standards Update No. 2020-02, “Financial Instruments—Credit Losses (Topic 326)” (“ASU 2020-02”), which incorporates SEC SAB 119 (updated from SAB 102) into the ASC by aligning SEC recommended policies and procedures with ASC 326.The Company adopted ASU 2016-13, ASU 2019-04, ASU 2019-11 and ASU 2020-02 as of January 1, 2020, and the adoption did not have a material impact on the Company’s consolidated financial statements.

In August 2018, the FASB issued Accounting Standards Update No. 2018-13 “Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”). ASU 2018-13 amends existing fair value measurement disclosure requirements by adding, changing, or removing certain disclosures. The Company adopted ASU 2018-13 as of January 1, 2020, and the adoption of ASU 2018-13 did not impact the Company’s consolidated financial statements.

9

2. Discontinued Operations and Assets Held for Sale

On March 30, 2020, the Company entered into the BTA for the sale of its Foundry Services Group business and Fab 4. Following the consummation of the sale, and for up to three years, the Company is expected to provide the Transitional Fab 3 Foundry Services. For the periods prior to the closing of the sale, revenue from providing the Transitional Fab 3 Foundry Services to the Foundry Services Group is recorded at cost on both of the continuing and discontinued businesses. The sale is expected to close within approximately four to six months from the date of the BTA, subject to customary closing conditions.

The following table summarizes the results from discontinued operations, net of tax, for the three months ended March 31, 2020 and 2019.

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Revenues:
Net sales – Foundry Services Group	$	86,279		$	57,116
Net sales – transitional Fab 3 foundry services		(9,737	)		(7,003	)
Total revenues		76,542			50,113
Cost of sales:
Cost of sales – Foundry Services Group		65,583			53,438
Cost of sales – transitional Fab 3 foundry services		(9,737	)		(7,003	)
Total cost of sales		55,846			46,435
Gross profit		20,696			3,678
Operating expenses:
Selling, general and administrative expenses		5,644			6,034
Research and development expenses		7,403			7,974
Restructuring and other charges		2,115			2,894
Total operating expenses		15,162			16,902
Operating income (loss) from discontinued operations		5,534			(13,224	)
Foreign currency gain, net		2,097			613
Other income		107			86
Income (loss) from discontinued operations before income tax expense		7,738			(12,525	)
Income tax expense		409			45
Income (loss) from discontinued operations, net of tax	$	7,329		$	(12,570	)

For the three months ended March 31, 2020 and 2019, the Company recorded $2,115 thousand and $743 thousand, respectively, in professional fees incurred in connection with the Foundry Services Group business and Fab 4, and recorded such costs as restructuring and other charges in the above. For the three months ended March 31, 2019, the Company also recorded in the same line a $2,151 thousand restructuring-related charge to its fab employees.

10

The following table provides a reconciliation of the aggregate carrying amounts of major classes of assets and liabilities relating to the Foundry Services Group business and Fab 4, which are included in assets and liabilities held for sale in the accompanying consolidated balance sheets for each of the periods presented:

	March 31, 2020		December 31, 2019
	(In thousands of US dollars)
Assets
Current assets
Accounts receivable, net	$	40,735	$	48,194
Unbilled accounts receivable, net		9,374		16,463
Inventories, net		34,968		31,863
Other current assets		2,891		3,301
Other assets of the disposal group classified as held for sale		1,461		—
Total current assets held for sale	$	89,429	$	99,821
Property, plant and equipment, net		99,604		109,506
Intangible assets, net		1,202		1,245
Other non-current assets		11,384		12,683
Total assets held for sale	$	201,619	$	223,255
Liabilities
Current liabilities
Accounts payable	$	20,462	$	20,503
Other current liabilities		14,773		16,537
Total current liabilities held for sale	$	35,235	$	37,040
Accrued severance benefits, net		93,121		95,547
Other non-current liabilities		13,657		15,334
Total liabilities held for sale	$	142,013	$	147,921

As of March 31, 2020, all assets and liabilities held for sale are classified as current on the consolidated balance sheets based on the anticipated date of disposal of the Foundry Services Group business and Fab 4.

The following table provides supplemental cash flows information related to discontinued operations:

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Significant non-cash operating activities:
Depreciation and amortization	$	5,365		$	5,752
Provision for severance benefits		3,052			1,803
Stock-based compensation		123			106
Investing activities:
Capital expenditures	$	(1,479	)	$	(4,469	)

11

3. Sales of Accounts Receivable and Receivable Discount Program

The Company has entered into an agreement to sell selected trade accounts receivable to a financial institution from time to time since March 2012. After the sale, the Company does not retain any interest in the receivables and the applicable financial institution collects these accounts receivable directly from the customer. There was no sale of these accounts receivable for the three months ended March 31, 2020. For the three months ended March 31, 2019, the proceeds from the sales of these accounts receivable totaled $7,989 thousand and these sales resulted in pre-tax losses of $25 thousand, which are included in selling, general and administrative expenses in the consolidated statements of operations. Net proceeds of this accounts receivable sale program are recognized in the consolidated statements of cash flows as part of operating cash flows.

The Company uses receivable discount programs with certain customers. These discount arrangements allow the Company to accelerate collection of customers’ receivables.

4. Inventories

Inventories as of March 31, 2020 and December 31, 2019 consist of the following (in thousands):

	March 31, 2020			December 31, 2019
Finished goods	$	8,448		$	10,087
Semi-finished goods and work-in-process		25,342			28,815
Raw materials		7,916			8,449
Materials in-transit		231			—
Less: inventory reserve		(4,807	)		(5,947	)
Inventories, net	$	37,130		$	41,404

Changes in inventory reserve for the three months ended March 31, 2020 and 2019 are as follows (in thousands):

	Three Months Ended
	March 31, 2020			March 31, 2019
Beginning balance	$	(5,947	)	$	(4,845	)
Change in reserve
Inventory reserve charged to costs of sales		(1,275	)		(5,073	)
Sale of previously reserved inventory		906			476
		(369	)		(4,597	)
Write off		499			592
Translation adjustments		316			160
Reclassified to assets held for sale		694			—
Ending balance	$	(4,807	)	$	(8,690	)

Inventory reserve represents the Company’s best estimate in value lost due to excessive inventory level, physical deterioration, obsolescence, changes in price levels, or other causes based on individual facts and circumstances. Inventory reserve relates to inventory items including finished goods, semi-finished goods, work-in-process and raw materials. Write off of this reserve is recognized only when the related inventory has been disposed or scrapped.

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5. Property, Plant and Equipment

Property, plant and equipment as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020			December 31, 2019
Buildings and related structures	$	21,309		$	22,502
Machinery and equipment		85,213			89,453
Finance lease right-of-use assets		306			323
Others		20,863			22,242
		127,691			134,520
Less: accumulated depreciation		(73,987	)		(75,704	)
Land		13,497			14,252
Property, plant and equipment, net	$	67,201		$	73,068

Aggregate depreciation expenses totaled $2,409 thousand and $2,412 thousand for the three months ended March 31, 2020 and 2019, respectively.

Concurrent with the execution of the BTA, the Company executed a factory (kun) mortgage agreement under which the real property owned by the Company in respect of the Fab 3 fabrication facility located in Gumi, Korea and other material assets located in, attached to or forming part of such facility were pledged as collateral for purposes of securing the payment of its termination fee of $34,470 thousand under the BTA. The Company has a right to replace the factory (kun) mortgage at any time with a deposit of $34,470 thousand cash into escrow.

6. Intangible Assets

Intangible assets as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020
	Gross amount		Accumulated amortization			Net amount
Technology	$	6,226	$	(6,226	)	$	—
Customer relationships		9,641		(9,641	)		—
Intellectual property assets		8,314		(5,731	)		2,583
Intangible assets, net	$	24,181	$	(21,598	)	$	2,583

	December 31, 2019
	Gross amount		Accumulated amortization			Net amount
Technology	$	6,575	$	(6,575	)	$	—
Customer relationships		10,180		(10,180	)		—
Intellectual property assets		8,637		(5,868	)		2,769
Intangible assets, net	$	25,392	$	(22,623	)	$	2,769

Aggregate amortization expenses for intangible assets totaled $161 thousand and $139 thousand for the three months ended March 31, 2020 and 2019, respectively.

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7. Leases

The Company has operating and finance leases for buildings and other assets such as vehicles and office equipment. The Company’s leases have remaining lease terms ranging from 1 year to 4 years.

The tables below present financial information related to the Company’s leases.

The Company adopted the new lease accounting standard as of January 1, 2019, using the modified retrospective transition method. The tables below present financial information related to the Company’s leases

Supplemental balance sheets information related to leases as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

Leases	Classification	March 31, 2020		December 31, 2019
Assets
Operating lease	Operating lease right-of-use assets	$	1,413	$	1,876
Finance lease	Property, plant and equipment, net		229		258
Total lease assets		$	1,642	$	2,134
Liabilities
Current
Operating	Operating lease liabilities	$	1,301	$	1,625
Finance	Other current liabilities		58		60
Non-current
Operating	Other non-current liabilities		112		251
Finance	Other non-current liabilities		182		208
Total lease liabilities		$	1,653	$	2,144

The following table presents the weighted average remaining lease term and discount rate:

	March 31, 2020			December 31, 2019
Weighted average remaining lease term
Operating leases		1.0 years			1.1 years
Finance leases		3.8 years			4.0 years
Weighted average discount rate
Operating leases		7.35	%		7.19	%
Finance leases		7.75	%		7.75	%

The components of lease cost included in the Company’s consolidated statements of operations, are as follows (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Operating lease cost	$	468	$	525
Finance lease cost
Amortization of right-of-use assets		16		17
Interest on lease liabilities		5		6
Total lease cost	$	489	$	548

The above table does not include an immaterial cost of short-term leases for the three months ended March 31, 2020 and 2019.

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Other lease information is as follows (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	468	$	525
Operating cash flows from finance leases		5		6
Financing cash flows from finance leases		14		14

The aggregate future lease payments for operating and finance leases as of March 31, 2020 are as follows (in thousands):

	Operating Leases			Finance Leases
2020	$	1,192		$	55
2021		254			74
2022		21			74
2023		1			74
Thereafter		—			—
Total future lease payments		1,468			277
Less: Imputed interest		(55	)		(37	)
Present value of future payments	$	1,413		$	240

8. Accrued Expenses

Accrued expenses as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020		December 31, 2019
Payroll, benefits and related taxes, excluding severance benefits	$	8,992	$	8,493
Withholding tax attributable to intercompany interest income		23,771		23,371
Interest on senior notes		3,444		8,205
Outside service fees		1,224		1,996
Others		4,058		2,734
Accrued expenses	$	41,489	$	44,799

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9. Derivative Financial Instruments

The Company’s Korean subsidiary from time to time has entered into zero cost collar and forward contracts to hedge the risk of changes in the functional-currency-equivalent cash flows attributable to currency rate changes on US dollar denominated revenues.

Details of derivative contracts as of March 31, 2020 are as follows (in thousands):

Date of transaction	Type of derivative		Total notional amount		Month of settlement
August 13, 2019		Zero cost collar	$	30,000	April 2020 to June 2020
September 27, 2019		Zero cost collar	$	21,000	April 2020 to June 2020
December 4, 2019		Zero cost collar	$	30,000	July 2020 to December 2020
January 31, 2020		Zero cost collar	$	30,000	July 2020 to December 2020
February 3, 2020		Zero cost collar	$	18,000	July 2020 to December 2020
February 21, 2020		Zero cost collar	$	30,000	July 2020 to December 2020

Details of derivative contracts as of December 31, 2019 are as follows (in thousands):

Date of transaction	Type of derivative		Total notional amount		Month of settlement
August 13, 2019		Zero cost collar	$	60,000	January 2020 to June 2020
September 27, 2019		Zero cost collar	$	42,000	January 2020 to June 2020
December 4, 2019		Zero cost collar	$	30,000	July 2020 to December 2020

The zero cost collar contracts qualify as cash flow hedges under ASC 815, “Derivatives and Hedging,” since at both the inception of the contracts and on an ongoing basis, the hedging relationship was and is expected to be highly effective in achieving offsetting cash flows attributable to the hedged risk during the term of the contracts.

The fair values of the Company’s outstanding zero cost collar contracts recorded as assets and liabilities as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

Derivatives designated as hedging instruments:		March 31, 2020		December 31, 2019
Asset Derivatives:
Zero cost collars	Other current assets	$	—	$	1,456
Liability Derivatives:
Zero cost collars	Other current liabilities	$	3,500	$	—

Offsetting of derivative liabilities as of March 31, 2020 is as follows (in thousands):

As of March 31, 2020	Gross amounts of recognized liabilities		Gross amounts offset in the balance sheets		Net amounts of liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
							Financial instruments		Cash collateral pledged
Liability Derivatives:
Zero cost collars	$	3,500	$	—	$	3,500	$	—	$	(2,720	)	$	780

Offsetting of derivative assets as of December 31, 2019 is as follows (in thousands):

As of December 31, 2019	Gross amounts of recognized assets		Gross amounts offset in the balance sheets		Net amounts of assets presented in the balance sheets		Gross amounts not offset in the balance sheets				Net amount
							Financial instruments		Cash collateral pledged
Asset Derivatives:
Zero cost collars	$	1,456	$	—	$	1,456	$	—	$	1,070	$	2,526

For derivative instruments that are designated and qualify as cash flow hedges, gains or losses on the derivative aside from components excluded from the assessment of effectiveness are reported as a component of accumulated other comprehensive income (“AOCI”) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative, representing hedge components excluded from the assessment of effectiveness, are recognized in current earnings.

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The following table summarizes the impact of derivative instruments on the consolidated statements of operations for the three months ended March 31, 2020 and 2019 (in thousands):

Derivatives in ASC 815 Cash Flow Hedging Relationships	Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)						Location/Amount of Loss Reclassified from AOCI Into Statement of Operations (Effective Portion)								Location/Amount of Gain (Loss) Recognized in Statement of Operations on Derivatives (Ineffective Portion)
	Three Months Ended March 31,								Three Months Ended March 31,								Three Months Ended March 31,
	2020			2019					2020			2019					2020		2019
Zero cost collars	$	(5,004	)	$	34			Net sales	$	(58	)	$	—			Other income, net	$	117	$	—
Forwards	$	—		$	(533	)		Net sales	$	—		$	(89	)		Other income, net	$	—	$	(56	)
Forwards—excluded time value								Net sales	$	—		$	(98	)
	$	(5,004	)	$	(499	)			$	(58	)	$	(187	)			$	117	$	(56	)

As of March 31, 2020, the amount expected to be reclassified from accumulated other comprehensive income into loss within the next twelve months is $3,401 thousand.

The Company set aside $10,550 thousand and $8,750 thousand of cash deposits to the counterparties, Nomura Financial Investment (Korea) Co., Ltd. (“NFIK”) and Deutsche Bank AG, Seoul Branch (“DB”), as required for the zero cost collar contracts outstanding as of March 31, 2020 and December 31, 2019, respectively. These cash deposits are recorded as hedge collateral on the consolidated balance sheets.

The Company is required to deposit additional cash collateral with NFIK and DB for any exposure in excess of $500 thousand, and $2,720 thousand and $1,070 thousand of additional cash collateral were required and recorded as hedge collateral on the consolidated balance sheets as of March 31, 2020 and December 31, 2019, respectively.

These cost collar contracts may be terminated by the counterparty in a number of circumstances, including if the Company’s borrowing rating falls below B-/B3 or if the Company’s total cash and cash equivalents is less than $30,000 thousand at the end of a fiscal quarter, unless a waiver is obtained from the counterparty.

10. Fair Value Measurements

Fair Value of Financial Instruments

As of March 31, 2020, the following table represents the Company’s liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value March 31, 2020		Fair Value Measurement March 31, 2020		Quoted Prices in Active Markets for Identical liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities (other current liabilities)	$	3,500	$	3,500		—	$	3,500		—

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As of December 31, 2019, the following table represents the Company’s assets measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value December 31, 2019		Fair Value Measurement December 31, 2019		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets (other current assets)	$	1,456	$	1,456		—	$	1,456		—

Items not reflected in the table above include cash equivalents, accounts receivable, other receivables, accounts payable, and other accounts payable, fair value of which approximate carrying values due to the short-term nature of these instruments. The fair value of assets and liabilities whose carrying value approximates fair value is determined using Level 2 inputs.

Fair Value of Borrowings

	March 31, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(In thousands of US dollars)
Borrowings:
5.0% Exchangeable Senior Notes due March 2021 (Level 2)	$	82,328	$	94,479	$	81,959	$	116,078
6.625% Senior Notes due July 2021 (Level 2)	$	223,012	$	210,795	$	222,784	$	224,250

On January 17, 2017, the Company’s wholly-owned subsidiary, MagnaChip Semiconductor S.A., closed an offering (the “Exchangeable Notes Offering”) of 5.0% Exchangeable Senior Notes due March 1, 2021 (the “Exchangeable Notes”), of $86,250 thousand, which represents the principal amount, excluding $5,902 thousand of debt issuance costs. In December 2018 and February 2019, MagnaChip Semiconductor S.A. repurchased a principal amount equal to $1,590 thousand and $920 thousand, respectively, of the Exchangeable Notes in the open market. The Company estimates the fair value of the Exchangeable Notes using the market approach, which utilizes quoted market prices that fall under Level 2. For further description of the Exchangeable Notes, see Note 11, “Borrowings.”

On July 18, 2013, the Company issued 6.625% Senior Notes due July 15, 2021 (the “2021 Notes”) of $225,000 thousand, which represents the principal amount, excluding $1,125 thousand of original issue discount and $5,039 thousand of debt issuance costs. In December 2018 and January 2019, the Company repurchased a principal amount equal to $500 thousand and $250 thousand, respectively, of the 2021 Notes in the open market. The Company estimates the fair value of the 2021 Notes using the market approach, which utilizes quoted market prices that fall under Level 2. For further description of the 2021 Notes, see Note 11, “Borrowings.”

Fair Values Measured on a Non-recurring Basis

The Company’s non-financial assets, such as property, plant and equipment, and intangible assets are recorded at fair value upon acquisition and are remeasured at fair value only if an impairment charge is recognized. As of March 31, 2020 and 2019, the Company did not have any assets or liabilities measured at fair value on a non-recurring basis.

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11. Borrowings

Borrowings as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

	March 31, 2020			December 31, 2019
5.0% Exchangeable Senior Notes due March 2021	$	83,740		$	83,740
6.625% Senior Notes due July 2021		224,250			224,250
Less: unamortized discount and debt issuance costs		(2,650	)		(3,247	)
Total borrowings, net		305,340			304,743
Less: current portion of long-term borrowings, net		(82,328	)		—
Long-term borrowings, net	$	223,012		$	304,743

5.0% Exchangeable Senior Notes

On January 17, 2017, MagnaChip Semiconductor S.A. closed the Exchangeable Notes Offering of $86,250 thousand aggregate principal amount of 5.0% Exchangeable Notes. Interest on the Exchangeable Notes accrues at a rate of 5.0% per annum, payable semi-annually on March 1 and September 1 of each year, beginning on March 1, 2017. The Exchangeable Notes will mature on March 1, 2021, unless earlier repurchased or converted. Holders may convert their notes at their option at any time prior to the close of business on the business day immediately preceding the stated maturity date.

The Company used a portion of the net proceeds from the issuance to repurchase 1,795,444 shares of common stock under its stock repurchase program at an aggregate cost of $11,401 thousand.

Upon conversion, the Company will deliver for each $1,000 principal amount of converted notes a number of shares equally to the exchange rate, which will initially be 121.1387 shares of common stock per $1,000 principal amount of Exchangeable Notes, equivalent to an initial exchange price of approximately $8.26 per share of common stock. The exchange rate will be subject to adjustment in some circumstances, but will not be adjusted for any accrued and unpaid interest. In addition, if a “make-whole fundamental change” (as defined in the Exchangeable Notes indenture (the “Exchangeable Notes Indenture”)) occurs prior to the stated maturity date, the Company will increase the exchange rate for a holder who elects to convert its notes in connection with such make-whole fundamental change in certain circumstances. MagnaChip Semiconductor S.A. may also, under certain circumstances, be required to pay additional amounts to holders of Exchangeable Notes if withholding or deduction is required in a relevant tax jurisdiction.

If the Company undergoes a fundamental change, subject to certain conditions, holders may require the Company to repurchase for cash all or part of their notes at a purchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change purchase date. In addition, upon certain events of default described in the Exchangeable Notes Indenture, the trustee or holders of at least 25% principal amount of the Exchangeable Notes may declare 100% of the then outstanding Exchangeable Notes due and payable in full, together with all accrued and unpaid interest thereon. Payment of principal on the Exchangeable Notes may also accelerate and become automatically due and payable upon certain events of default involving bankruptcy or insolvency proceedings involving the Company, MagnaChip Semiconductor S.A. and their significant subsidiaries. The Exchangeable Notes are not redeemable at the option of MagnaChip Semiconductor S.A. prior to the maturity date.

The Exchangeable Notes Indenture contains covenants that limit the ability of the Company, MagnaChip Semiconductor S.A. and the Company’s other restricted subsidiaries to: (i) declare or pay any dividend or make any payment or distribution on account of or purchase or redeem the Company’s capital stock or equity interests of the restricted subsidiaries; (ii) make any principal payment on, or redeem or repurchase, prior to any scheduled repayment or maturity, any subordinated indebtedness; (iii) make certain investments; (iv) incur additional indebtedness and issue certain types of capital stock; (v) create or incur any lien (except for permitted liens) that secures obligations under any indebtedness; (vi) merge with or into or sell all or substantially all of the Company’s assets to other companies; (vii) enter into certain types of transactions with affiliates; (viii) guarantee the payment of any indebtedness; and (ix) designate unrestricted subsidiaries.

These covenants are subject to a number of exceptions and qualifications. Certain of these restrictive covenants will terminate if the Exchangeable Notes are rated investment grade at any time.

The Company incurred debt issuance costs of $5,902 thousand related to the issuance of the Exchangeable Notes. The debt issuance costs are recorded as a direct deduction from the long-term borrowings in the consolidated balance sheets and amortized to interest expense using the effective interest method over the term of the Exchangeable Notes. Interest expense related to the Exchangeable Notes for the three months ended March 31, 2020 and 2019 were $1,416 thousand and $1,408 thousand, respectively.

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In December 2018, the Company repurchased a principal amount equal to $1,590 thousand of the Exchangeable Notes in the open market, resulting in a loss of $234 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2018. In February 2019, the Company repurchased a principal amount equal to $920 thousand of the Exchangeable Notes in the open market, resulting in a loss of $63 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2019.

6.625% Senior Notes

On July 18, 2013, the Company issued a $225,000,000 aggregate principal amount of the 2021 Notes at a price of 99.5%. Interest on the 2021 Notes accrues at a rate of 6.625% per annum, payable semi-annually on January 15 and July 15 of each year, beginning on January 15, 2014.

On or after July 15, 2019, the Company can optionally redeem all or a part of the 2021 Notes at a redemption price equal to 100% of the principal amount of the notes plus accrued and unpaid interest and special interest, if any, on the notes redeemed, to the applicable date of redemption.

The Indenture relating to the 2021 Notes contains covenants that limit the ability of the Company and its restricted subsidiaries to: (i) declare or pay any dividend or make any payment or distribution on account of or purchase or redeem the Company’s capital stock or equity interests of the restricted subsidiaries; (ii) make any principal payment on, or redeem or repurchase, prior to any scheduled repayment or maturity, any subordinated indebtedness; (iii) make certain investments; (iv) incur additional indebtedness and issue certain types of capital stock; (v) create or incur any lien (except for permitted liens) that secures obligations under any indebtedness; (vi) merge with or into or sell all or substantially all of the Company’s assets to other companies; (vii) enter into certain types of transactions with affiliates; (viii) guarantee the payment of any indebtedness; (ix) enter into sale-leaseback transactions; (x) enter into agreements that would restrict the ability of the restricted subsidiaries to make distributions with respect to their equity to the Company or other restricted subsidiaries, to make loans to the Company or other restricted subsidiaries or to transfer assets to the Company or other restricted subsidiaries; and (xi) designate unrestricted subsidiaries.

These covenants are subject to a number of exceptions and qualifications. Certain of these restrictive covenants will terminate if the 2021 Notes are rated investment grade at any time.

The Company incurred original issue discount of $1,125 thousand and debt issuance costs of $5,039 thousand related to the issuance of the 2021 Notes. The original issue discount and the debt issuance costs are recorded as a direct deduction from the long-term borrowings in the consolidated balance sheets and amortized to interest expense using the effective interest method over the term of the 2021 Notes. Interest expense related to the 2021 Notes for the three months ended March 31, 2020 and 2019 were $3,943 thousand and $3,930 thousand, respectively.

In December 2018, the Company repurchased a principal amount equal to $500 thousand of the 2021 Notes in the open market, resulting in a net gain of $28 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2018. In January 2019, the Company repurchased a principal amount equal to $250 thousand of the 2021 Notes in the open market, resulting in a net gain of $21 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2019.

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12. Accrued Severance Benefits

The majority of accrued severance benefits are for employees in the Company’s Korean subsidiary. Pursuant to the Employee Retirement Benefit Security Act of Korea, eligible employees and executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of March 31, 2020, 98% of all employees of the Company were eligible for severance benefits.

Changes in accrued severance benefits are as follows (in thousands):

	Three Months Ended
	March 31, 2020			March 31, 2019
Beginning balance	$	53,344		$	55,691
Provisions		2,019			1,314
Severance payments		(1,952	)		(1,496	)
Translation adjustments		(2,801	)		(956	)
		50,610			54,553
Less: Cumulative contributions to severance insurance deposit accounts		(1,557	)		(869	)
The National Pension Fund		(75	)		(87	)
Group severance insurance plan		(213	)		(243	)
Accrued severance benefits, net	$	48,765		$	53,354

The severance benefits funded through the Company’s National Pension Fund and group severance insurance plan will be used exclusively for payment of severance benefits to eligible employees. These amounts have been deducted from the accrued severance benefit balance.

In July 2018, the Company began contributing to certain severance insurance deposit accounts a certain percentage of severance benefits that are accrued for eligible employees for their services from January 1, 2018. These accounts consist of time deposits and other guaranteed principal and interest, and are maintained at insurance companies, banks or security companies for the benefit of employees. The Company deducts the contributions made to these severance insurance deposit accounts from its accrued severance benefits.

The Company is liable to pay the following future benefits to its non-executive employees upon their normal retirement age (in thousands):

	Severance benefit
Remainder of 2020	$	369
2021		626
2022		823
2023		580
2024		788
2025		2,201
2026 – 2030		19,439

The above amounts were determined based on the non-executive employees’ current salary rates and the number of service years that will be accumulated upon their retirement dates. These amounts do not include amounts that might be paid to non-executive employees that will cease working with the Company before their normal retirement ages.

Korea’s mandatory retirement age is 60 under the Employment Promotion for the Aged Act.

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13. Foreign Currency Loss, Net

Net foreign currency gain or loss includes non-cash translation gain or loss associated with intercompany balances. A substantial portion of the Company’s net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to the Company’s Korean subsidiary. The loans are denominated in US dollars and are affected by changes in the exchange rate between the Korean won and the US dollar. As of March 31, 2020 and December 31, 2019, the outstanding intercompany loan balances including accrued interest between the Korean subsidiary and the Dutch subsidiary were $684,021 thousand and $686,485 thousand, respectively. The Korean won to US dollar exchange rates were 1,222.6:1, 1,157.8:1 using the first base rate as of March 31, 2020 and December 31, 2019, respectively, as quoted by the KEB Hana Bank.

14. Income Taxes

The Company and its subsidiaries file income tax returns in Korea, Japan, Taiwan, the US and in various other jurisdictions. The Company is subject to income- or non-income tax examinations by tax authorities of these jurisdictions for all open tax years.

A loss from continuing operations before income tax expense for the three months ended March 31, 2020 and 2019 was $29,775 thousand and $20,759 thousand, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded an income tax expense on continuing of $1,303 thousand and $796 thousand, respectively, primarily attributable to interest on intercompany loan balances. Income tax expense was recorded for the Company’s Korean subsidiary based on the estimated taxable income for the respective periods, combined with its ability to utilize net operating loss carryforwards up to 60% in 2019 and 2020.

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15. Geographic and Other Information

Historically, the Company operated in two reportable segments: Foundry Services Group and Standard Products Group. The Company’s Foundry Services Group provides specialty analog and mixed-signal foundry services mainly for fabless and Integrated Device Manufacturer (“IDM”) semiconductor companies that primarily serve communications, IoT, consumer, industrial and automotive applications. The Company’s Standard Products Group is comprised of two business lines: Display Solutions and Power Solutions. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and mobile, automotive applications and home appliances. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer and industrial applications.

On March 30, 2020, the Company entered into the BTA to sell its Foundry business and Fab 4. The planned divestiture of its Foundry business and Fab 4 allows the Company to strategically shift its operational focus to its standard products business. As a result, the results of the Foundry Services Group were classified as discontinued operations in the Company’s consolidated statements of operations and thus excluded from both continuing operations and segment results for all periods presented. Please see “Item 1. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 2. Discontinued Operations and Assets Held for Sale” for additional information on the results of discontinued operations. Accordingly, the Company now has one reportable segment. The Company’s chief operating decision maker is its Chief Executive Officer, who allocates resources and assesses performance of the business and other activities based on gross profit.

The following sets forth information relating to the single continuing operating segment (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Revenues
Standard products business
Display Solutions	$	77,593	$	58,230
Power Solutions		33,143		42,034
Total standard products business	$	110,736	$	100,264
Transitional Fab 3 foundry services		9,737		7,003
Total revenues	$	120,473	$	107,267

	Three Months Ended
	March 31, 2020		March 31, 2019
Gross Profit
Standard products business	$	29,130	$	19,023
Transitional Fab 3 foundry services		—		—
Total gross profit	$	29,130	$	19,023

The following is a summary of net sales – standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Korea	$	30,817	$	34,646
Asia Pacific (other than Korea)		77,542		63,747
United States		709		462
Europe		971		1,133
Others		697		276
Total	$	110,736	$	100,264

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For the three months ended March 31, 2020 and 2019, of the Company’s net sales – standard products business in Asia Pacific (other than Korea) and net sales – standard products business in Greater China (China, Hong Kong and Macau) represented 95.3% and 94.1% of total net sales – standard products business, respectively.

Net sales from the Company’s top ten largest customers in the standard products business (which does not include the Transitional Fab 3 Foundry Services) accounted for 90% and 88% for the three months ended March 31, 2020 and 2019, respectively.

For the three months ended March 31, 2020, the Company had two customers that represented 52.8% and 15.8% of its net sales – standard products business. For the three months ended March 31, 2019, the Company had two customers that represented 45.0% and 11.6% of its net sales – standard products business.

95% of the Company’s property, plant and equipment from continuing operations are located in Korea as of March 31, 2020.

16. Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive income (loss) consists of the following as of March 31, 2020 and December 31, 2019, respectively (in thousands):

	March 31, 2020			December 31, 2019
Foreign currency translation adjustments	$	18,046		$	(4,205	)
Derivative adjustments		(3,401	)		1,545
Total	$	14,645		$	(2,660	)

Changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2020 and 2019 are as follows (in thousands):

Three Months Ended March 31, 2020	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(4,205	)	$	1,545		$	(2,660	)
Other comprehensive income (loss) before reclassifications		22,251			(5,004	)		17,247
Amounts reclassified from accumulated other comprehensive loss		—			58			58
Net current-period other comprehensive income (loss)		22,251			(4,946	)		17,305
Ending balance	$	18,046		$	(3,401	)	$	14,645

Three Months Ended March 31, 2019	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(20,061	)	$	(49	)	$	(20,110	)
Other comprehensive income (loss) before reclassifications		7,304			(499	)		6,805
Amounts reclassified from accumulated other comprehensive loss		—			187			187
Net current-period other comprehensive income (loss)		7,304			(312	)		6,992
Ending balance	$	(12,757	)	$	(361	)	$	(13,118	)

There was no income tax impact related to changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2020 and 2019 due to net operating loss carry-forwards available to offset taxable income and full allowance for deferred tax assets.

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17. Loss Per Share

The following table illustrates the computation of basic and diluted loss per common share for the three months ended March 31, 2020 and 2019:

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars, except share data)
Basic and diluted loss per share
Loss from continuing operations	$	(31,078	)	$	(21,555	)
Income (loss) from discontinued operations, net of tax		7,329			(12,570	)
Net loss	$	(23,749	)	$	(34,125	)
Weighted average number of shares – basic and diluted		34,893,157			34,194,878
Basic and diluted earnings (loss) per common share
Continuing operations	$	(0.89	)	$	(0.63	)
Discontinued operations		0.21			(0.37	)
Total	$	(0.68	)	$	(1.00	)

The following outstanding instruments were excluded from the computation of diluted loss per share, as they have an anti-dilutive effect on the calculation:

	Three Months Ended
	March 31, 2020		March 31, 2019
Options		2,163,845		2,632,300
Restricted Stock Units		729,939		508,943

For the three months ended March 31, 2020 and 2019, 10,144,155 shares and 10,182,542 shares, respectively, of potential common stock from the assumed conversion of Exchangeable Notes were excluded from the computation of diluted loss per share as the effects were anti-dilutive for the periods.

18. Commitments and Contingencies

Long-term Purchase Agreements and Advances to Suppliers

The Company purchases raw materials from a variety of vendors. During the normal course of business, in order to manage manufacturing lead times and help assure adequacy supply, the Company from time to time may enter into multi-year purchase agreements, which specify future quantities and pricing of materials to be supplied by the vendors. The Company reviews the terms of the long-term supply agreements and assesses the need for any accrual for estimated losses, such as lower of cost or net realizable value that will not be recovered by future sales prices. No such accrual was required as of March 31, 2020 and December 31, 2019, respectively.

The Company, from time to time, may make advances in form of prepayments or deposits to suppliers to procure materials to meet its planned production. The Company recorded advances of $5,118 thousand and $6,593 thousand as other current assets as of March 31, 2020 and December 31, 2019, respectively.

COVID-19 Pandemic

In December 2019, a strain of coronavirus causing a disease known as COVID-19 surfaced in Wuhan, China, resulting in significant disruptions among Chinese manufacturing and other facilities and travel throughout China. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, which continues to spread rapidly in the U.S. and other countries throughout the world. Governmental authorities throughout the world have implemented numerous containment measures, including travel bans and restrictions, quarantines, shelter-in-place orders, and business restrictions and shutdowns, resulting in rapidly changing market and economic conditions.

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While the Company experienced some minor disruption in its Power business from assembly and test subcontractors located in China in the first quarter of 2020 as a result of COVID-19, to date its external Display business contractors and sub-contractors have not been materially impacted by the outbreak. Nevertheless, while the future impact on the Company’s business from the COVID-19 pandemic is currently difficult to assess, the significant global macro-economic disruption will adversely affect customer demand for some of its products in the near term. The Company is, however, unable to accurately predict the full impact COVID-19 will have on its future results of operations due to numerous uncertainties, including the severity of the disease, the duration of the outbreak, a potential future recurrence of the outbreak, further containment actions that may be taken by governmental authorities, the impact to the businesses of its customers and suppliers, and other factors.

The Company continues to closely monitor and evaluate the nature and scope of the impact on COVID-19 to its business, consolidated results of operations, and financial condition, and may take further actions altering its business operations and managing its costs and liquidity that the Company deems necessary or appropriate to respond to this fast moving and uncertain global health crisis and the resulting global economic consequences.

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FORWARD LOOKING STATEMENTS

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Section 27A of the Securities Act of 1933, as amended, that involve risks and uncertainties. Forward-looking statements give our current expectations and projections relating to our financial condition, results of operations, plans, objectives, future performance and business. You can identify these statements by the fact that they do not relate strictly to historical or current facts. These statements may include words such as “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of the timing or nature of future operating or financial performance or other events. All statements other than statements of historical facts included in this report that address activities, events or developments that we expect, believe or anticipate will or may occur in the future are forward-looking statements.

These forward-looking statements are largely based on our expectations and beliefs concerning future events, which reflect estimates and assumptions made by our management. These estimates and assumptions reflect our best judgment based on currently known market conditions and other factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Although we believe our estimates and assumptions to be reasonable, they are inherently uncertain and involve a number of risks and uncertainties that are beyond our control. In addition, management’s assumptions about future events may prove to be inaccurate. Management cautions all readers that the forward-looking statements contained in this report are not guarantees of future performance, and we cannot assure any reader that those statements will be realized or the forward-looking events and circumstances will occur. Actual results may differ materially from those anticipated or implied in the forward-looking statements due to the factors listed in this section, in “Part II: Item 1A. Risk Factors” herein and in “Part I: Item 1A. Risk Factors” in our Annual Report on Form 10-K filed on February 21, 2020 (“2019 Form 10-K”) (including that the impact of the COVID-19 pandemic may also exacerbate the risks discussed therein).

All forward-looking statements speak only as of the date of this report. We do not intend to publicly update or revise any forward-looking statements as a result of new information or future events or otherwise, except as required by law. These cautionary statements qualify all forward-looking statements attributable to us or persons acting on our behalf.

Statements made in this Quarterly Report on Form 10-Q (this “Report”), unless the context otherwise requires, that include the use of the terms “we,” “us,” “our” and “MagnaChip” refer to MagnaChip Semiconductor Corporation and its consolidated subsidiaries. The term “Korea” refers to the Republic of Korea or South Korea.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with the unaudited consolidated financial statements and the related notes included elsewhere in this Report. We have reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations to reflect the divestiture of our Foundry Services Group business and Fab 4. Unless otherwise stated, information in this section relates to our continuing operations. The consolidated statements of cash flows have not been adjusted to separately disclose cash flows related to discontinued operations.

Overview

We are a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, IoT applications, consumer, industrial and automotive applications. We provide technology platforms for analog, mixed-signal, power, high voltage, non-volatile memory, and radio frequency applications. We have a proven record with more than 40 years of operating history, a portfolio of approximately 2,950 registered patents and pending applications and extensive engineering and manufacturing process expertise.

On March 30, 2020, we entered into the BTA for the sale of our Foundry Services Group business and Fab 4. The planned divestiture of the Foundry Services Group business and Fab 4 will allow us to strategically shift our operational focus to our standard products business. As a result, the results of the Foundry Services Group were classified as discontinued operations in our consolidated statements of operations and excluded from both continuing operations and segment results for all periods presented. Accordingly, from the first quarter of 2020, we have one reportable segment: our standard products business, together with transitional foundry services associated with our fabrication facility located in Gumi, Korea, known as Fab 3, that it expects to perform for the Buyer for a period of up to three years (the “Transitional Fab 3 Foundry Services”). The Transitional Fab 3 Foundry Services revenue is accounted for at cost prior to the closing of the sale of the Foundry business and Fab 4.

Our standard products business includes our Display Solutions and Power Solutions business lines.

Our Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and mobile, automotive applications and home appliances. Our Display Solutions products include source, gate drivers, timing controllers, and one-chip integrated solutions for LCD (Liquid Crystal Display) and OLED panel displays used in televisions, public displays, monitors notebooks, mobile communications and automotive applications. Our Display Solutions products support the industry’s most advanced display technologies, such as OLEDs, and low temperature polysilicons (LTPS), as well as high-volume display technologies such as thin film transistors (TFT). Since 2007, we have designed and manufactured OLED display driver IC products. Our current portfolio of OLED solutions address a wide range of resolutions ranging from HD to Wide Quad High Definition (WQHD) for applications including smartphones, TVs, and other mobile devices. We believe we have a unique intellectual property portfolio and mixed-signal design and manufacturing expertise in the OLED industry.

Our Power Solutions business line produces power management semiconductor products including discrete and integrated circuit solutions for power management in communications, consumer and industrial applications. These products include metal oxide semiconductor field effect transistors (MOSFETs), insulated-gate bipolar transistors (IGBTs), AC-DC converters, DC-DC converters, LED drivers, switching regulators and linear regulators for a range of devices, including televisions, smartphones, mobile phones, desktop PCs, notebooks, tablet PCs, other consumer electronics, and industrial applications such as power suppliers, LED lighting, motor control and home appliances.

Our wide variety of analog and mixed-signal semiconductor products combined with our mature technology platform allow us to address multiple high-growth end markets and to rapidly develop and introduce new products and services in response to market demands. Our design center and substantial manufacturing operations in Korea place us at the core of the global electronics device supply chain. We believe this enables us to quickly and efficiently respond to our customers’ needs and allows us to better serve and capture additional demand from existing and new customers.

To maintain and increase our profitability, we must accurately forecast trends in demand for electronics devices that incorporate semiconductor products we produce. We must understand our customers’ needs as well as the likely end market trends and demand in the markets they serve. We must also invest in relevant research and development activities and purchase necessary materials on a timely basis to meet our customers’ demand while maintaining our target margins and cash flow.

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The semiconductor markets in which we participate are highly competitive. The prices of our products tend to decrease regularly over their useful lives, and such price decreases can be significant as new generations of products are introduced by us or our competitors. We strive to offset the impact of declining selling prices for existing products through cost reductions and the introduction of new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to mitigate the risk of losses from product obsolescence.

Demand for our products and services is driven by overall demand for communications, IoT, consumer, industrial and automotive products and can be adversely affected by periods of weak consumer and enterprise spending or by market share losses by our customers. In order to mitigate the impact of market volatility on our business, we are diversifying our portfolio of products, customers, and target applications. We also expect that new competitors will emerge in these markets that may place increased pressure on the pricing for our products and services. While we believe we are well positioned competitively to compete in these markets and against these new competitors as a result of our long operating history, existing manufacturing capacity and our worldwide customer base, if we are not effective in competing in these markets, our operating results may be adversely affected.

Net sales of the standard products business are driven by design wins in which we are selected by an electronics original equipment manufacturer (OEM) or other potential customer to supply its demand for a particular product. A customer will often have more than one supplier designed in to multi-source components for a particular product line. Once we have design wins and the products enter into mass production, we often specify the pricing of a particular product for a set period of time, with periodic discussions and renegotiations of pricing with our customers. In any given period, our net sales depend heavily upon the end-market demand for the goods in which our products are used, the inventory levels maintained by our customers and in some cases, allocation of demand for components for a particular product among selected qualified suppliers.

In contrast to completely fabless semiconductor companies, our internal manufacturing capacity provides us with greater control over manufacturing costs and the ability to implement process and production improvements for our internally manufactured products, which can favorably impact gross profit margins. Our internal manufacturing capacity also allows for better control over delivery schedules, improved consistency over product quality and reliability and improved ability to protect intellectual property from misappropriation on these products. However, having internal manufacturing capacity exposes us to the risk of under-utilization of manufacturing capacity that results in lower gross profit margins, particularly during downturns in the semiconductor industry.

Our standard products business requires investments in capital equipment. Analog and mixed-signal manufacturing facilities and processes are typically distinguished by the design and process implementation expertise rather than the use of the most advanced equipment. Many of these processes also tend to migrate more slowly to smaller geometries due to technological barriers and increased costs. For example, some of our products use high-voltage technology that requires larger geometries and that may not migrate to smaller geometries for several years, if at all. As a result, our manufacturing base and strategy do not require substantial investment in leading edge process equipment for those products, allowing us to utilize our facilities and equipment over an extended period of time with moderate required capital investments. In addition, we are less likely to experience significant industry overcapacity, which can cause product prices to decline significantly. In general, we seek to invest in manufacturing capacity that can be used for multiple high-value applications over an extended period of time. In addition, we outsource manufacturing of those products which do require advanced technology and 12-inch wafer capacity, such as organic light emitting diodes (OLED). We believe this balanced capital investment strategy enables us to optimize our capital investments and facilitates more diversified product and service offerings.

Since 2007, we have designed and manufactured OLED display driver ICs in our internal manufacturing facilities. As we expanded our design capabilities to products that require lower geometries unavailable at our existing manufacturing facilities, we began outsourcing manufacturing of certain OLED display driver ICs to an external 12-inch foundry from the second half of 2015. This additional source of manufacturing is an increasingly important part of our supply chain management. By outsourcing manufacturing of advanced OLED products to external 12-inch foundries, we are able to dynamically adapt to the changing customer requirements and address growing markets without substantial capital investments by us. Both at the internal 8-inch manufacturing facilities and external 12-inch foundries, we apply our unique OLED process patents as well as other intellectual property, proprietary process design kits and custom design-flow methodologies.

Our success going forward will depend upon our ability to adapt to future challenges such as the emergence of new competitors for our products and services or the consolidation of current competitors. Additionally, we must innovate to remain ahead of, or at least rapidly adapt to, technological breakthroughs that may lead to a significant change in the technology necessary to deliver our products and services. We believe that our established relationships and close collaboration with leading customers enhance our awareness of new product opportunities, market and technology trends and improve our ability to adapt and grow successfully.

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Recent Developments

Business Transfer Agreement

On March 30, 2020, we entered into the BTA for the sale of our Foundry Services Group business and Fab 4 to the Buyer. On the terms and subject to the conditions set forth in the BTA, the Buyer agreed to acquire certain assets and assume certain liabilities related to the Foundry Services Group business and Fab 4 for a purchase price equal to the KRW equivalent of $344.7 million in cash, subject to a working capital adjustment as described in the BTA. Subject to the terms of the BTA, all employees of the Foundry Services Group business and Fab 4 will be transferred to the Buyer as of the closing date, unless any of such employees formally objects to the transfer. The Buyer will assume all severance liabilities relating to the transferred employees. For a summary of the key terms and conditions of the BTA, please see our Current Report on Form 8-K filed on March 31, 2020 and the BTA filed as Exhibit 10.1 thereto.

COVID-19 Pandemic

In December 2019, a strain of coronavirus causing a disease known as COVID-19 surfaced in Wuhan, China, resulting in significant disruptions among Chinese manufacturing and other facilities and travel throughout China. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, which continues to spread rapidly in the U.S. and other countries throughout the world. Governmental authorities throughout the world have implemented numerous containment measures, including travel bans and restrictions, quarantines, shelter-in-place orders, and business restrictions and shutdowns, resulting in rapidly changing market and economic conditions.

While we experienced some minor disruption in our Power business from assembly and test subcontractors located in China in the first quarter of 2020 as a result of COVID-19, to date our external Display business contractors and sub-contractors have not been materially impacted by the outbreak. Nevertheless, while the future impact on our business from the COVID-19 pandemic is currently difficult to assess, the significant global macro-economic disruption will adversely affect customer demand for some of our products in the near term. We are, however, unable to accurately predict the full impact COVID-19 will have on our future results of operations due to numerous uncertainties, including the severity of the disease, the duration of the outbreak, a potential future recurrence of the outbreak, further containment actions that may be taken by governmental authorities, the impact to the businesses of our customers and suppliers, and other factors.

We continue to closely monitor and evaluate the nature and scope of the impact on COVID-19 to our business, consolidated results of operations, and financial condition, and may take further actions altering our business operations and managing our costs and liquidity that we deem necessary or appropriate to respond to this fast moving and uncertain global health crisis and the resulting global economic consequences.

Repurchase of Long-Term Borrowings

In January and February 2019, we repurchased a principal amount of $0.3 million and $0.9 million of the 2021 Notes and the Exchangeable Notes, respectively. As a result, we recorded a $0.04 million net loss as early extinguishment loss on our consolidated statements of operations for the three months ended March 31, 2019.

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Explanation and Reconciliation of Non-US GAAP Measures

Adjusted EBITDA and Adjusted Net Income (Loss)

We use the terms Adjusted EBITDA and Adjusted Net Income (Loss) (including on a per share basis) in our report. Adjusted EBITDA, as we define it, is a non-US GAAP measure. We define Adjusted EBITDA for the periods indicated as EBITDA (as defined below), adjusted to exclude (i) restructuring and other charges, (ii) equity-based compensation expense, (iii) foreign currency loss (gain), net, (iv) derivative valuation loss (gain), net, (v) loss on early extinguishment of long-term borrowings, net and (vi) others. EBITDA for the periods indicated is defined as net income (loss) before interest expense, net, income tax expense, and depreciation and amortization.

See the footnotes to the table below for further information regarding these items. We present Adjusted EBITDA as a supplemental measure of our performance because:

• we believe that Adjusted EBITDA, by eliminating the impact of a number of items that we do not consider to be indicative of our core ongoing operating performance, provides a more comparable measure of our operating performance from period-to-period and may be a better indicator of future performance;

• we believe that Adjusted EBITDA is commonly requested and used by securities analysts, investors and other interested parties in the evaluation of the Company as an enterprise level performance measure that eliminates the effects of financing, income taxes and the accounting effects of capital spending, as well as other one time or recurring items described above; and

• we believe that Adjusted EBITDA is useful for investors, among other reasons, to assess the Company’s period-to-period core operating performance and to understand and assess the manner in which management analyzes operating performance.

We use Adjusted EBITDA in a number of ways, including:

• for planning purposes, including the preparation of our annual operating budget;

• to evaluate the effectiveness of our enterprise level business strategies;

• in communications with our Board of Directors concerning our consolidated financial performance; and

• in certain of our compensation plans as a performance measure for determining incentive compensation payments.

We encourage you to evaluate each adjustment and the reasons we consider them appropriate. In evaluating Adjusted EBITDA, you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. Adjusted EBITDA is not a measure defined in accordance with US GAAP and should not be construed as an alternative to income from continuing operations, cash flows from operating activities or net income, as determined in accordance with US GAAP. A reconciliation of net income (loss) to Adjusted EBITDA from continuing operations, discontinued operations and total operations is as follows:

	Three Months Ended March 31, 2020									Three Months Ended March 31, 2019
	Continuing Operations			Discontinued Operations			Total			Continuing Operations			Discontinued Operations			Total
	(In millions)
Net Income (Loss)	$	(31.1	)	$	7.3		$	(23.7	)	$	(21.6	)	$	(12.6	)	$	(34.1	)
Interest expense, net		4.9			—			4.9			5.1			—			5.1
Income tax expense		1.3			0.4			1.7			0.8			0.0			0.8
Depreciation and amortization		2.6			5.4			7.9			2.6			5.8			8.3
EBITDA		(22.3	)		13.1			(9.2	)		(13.1	)		(6.8	)		(19.9	)
Adjustments
Restructuring and other charges(a)		—			2.1			2.1			—			2.9			2.9
Equity-based compensation expense(b)		0.8			0.1			0.9			0.6			0.1			0.7
Foreign currency loss (gain), net(c)		31.0			(2.1	)		28.9			10.6			(0.6	)		10.0
Derivative valuation loss (gain), net(d)		(0.1	)		—			(0.1	)		0.1			—			0.1
Loss on early extinguishment of long-term borrowings, net(e)		—			—			—			0.0			—			0.0
Others(f)		0.6			—			0.6			0.6			—			0.6
Adjusted EBITDA	$	9.9		$	13.2		$	23.1		$	(1.3	)	$	(4.4	)	$	(5.7	)

(a) For the three months ended March 31, 2020, this adjustment eliminates a $2.1 million in professional fees incurred in connection with the Foundry Services Group business and Fab 4. For the three months ended March 31, 2019, this adjustment eliminates the impact of a $2.2 million restructuring related charge with respect to the fab employees. This adjustment also eliminates a $0.7 million legal costs incurred in connection with the Foundry Services Group and Fab 4.

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(b) This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, these expenses do not generally require cash settlement, and, therefore, are not used by us to assess the profitability of our operations. We believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses as supplemental information.

(c) This adjustment mainly eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations with respect to the continuing operations and foreign currency denominated receivables and payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, which we cannot control. Additionally, we believe the isolation of this adjustment provides investors with enhanced comparability to prior and future periods of our operating performance results.

(d) This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents derivatives value changes excluded from the risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in US dollars, and we do not enter into derivative transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

(e) This adjustment eliminates $0.04 million in expenses related to the repurchase of a portion of the 2021 Notes and the Exchangeable Notes in the first quarter of 2019.

(f) For the three months ended March 31, 2020, this adjustment eliminates non-recurring professional service fees and expenses incurred in connection with certain treasury and finance initiatives. For the three months ended March 31, 2019, this adjustment eliminates a $0.5 million legal settlement charge related to dispute with a prior customer and a legal expense related to the indemnification of a former employee, which is borne by us under a negotiated separation agreement. We do not believe that these charges are indicative of our core operating performance and have been excluded for comparative purposes.

Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under US GAAP. Some of these limitations are:

• Adjusted EBITDA does not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments;

• Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

• Adjusted EBITDA does not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our debt;

• although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often need to be replaced in the future, and Adjusted EBITDA does not reflect any cash requirements for such replacements;

• Adjusted EBITDA does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;

• Adjusted EBITDA does not reflect the costs of holding certain assets and liabilities in foreign currencies; and

• other companies in our industry may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted EBITDA should not be considered as a measure of discretionary cash available to us to invest in the growth of our business. We compensate for these limitations by relying primarily on our US GAAP results and using Adjusted EBITDA only supplementally.

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We present Adjusted Net Income (Loss) (including on a per share basis) as a further supplemental measure of our performance. We prepare Adjusted Net Income (Loss) (including on a per share basis) by adjusting net income (loss) to eliminate the impact of a number of non-cash expenses and other items that may be either one time or recurring that we do not consider to be indicative of our core ongoing operating performance. We believe that Adjusted Net Income (Loss) (including on a per share basis); is particularly useful because it reflects the impact of our asset base and capital structure on our operating performance. We present Adjusted Net Income (Loss) (including on a per share basis) for a number of reasons, including:

• we use Adjusted Net Income (Loss) (including on a per share basis) in communications with our Board of Directors concerning our consolidated financial performance without the impact of non-cash expenses and the other items as we discussed below since we believe that it is a more consistent measure of our core operating results from period to period; and

• we believe that reporting Adjusted Net Income (Loss) (including on a per share basis) is useful to readers in evaluating our core operating results because it eliminates the effects of non-cash expenses as well as the other items we discuss below, such as foreign currency gains and losses, which are out of our control and can vary significantly from period to period.

Adjusted Net Income (Loss) (including on a per share basis) is not a measure defined in accordance with US GAAP and should not be construed as an alternative to income from continuing operations, cash flows from operating activities or net income, as determined in accordance with US GAAP. We encourage you to evaluate each adjustment and the reasons we consider them appropriate. Other companies in our industry may calculate Adjusted Net Income (Loss) (including on a per share basis) differently than we do, limiting its usefulness as a comparative measure. In addition, in evaluating Adjusted Net Income (Loss) (including on a per share basis), you should be aware that in the future we may incur expenses similar to the adjustments in this presentation. We define Adjusted Net Income (Loss) (including on a per share basis); for the periods indicated as net income (loss), adjusted to exclude (i) restructuring and other charges, (ii) equity-based compensation expense, (iii) foreign currency loss (gain), net, (iv) derivative valuation loss (gain), net, (v) loss on early extinguishment of long-term borrowings, net and (vi) others.

The following table summarizes the adjustments to net income (loss) from continuing operations, discontinued operations and total operations that we make in order to calculate Adjusted Net Income (Loss) (including on a per share basis) from continuing operations, discontinued operations and total operations for the periods indicated:

	Three Months Ended March 31, 2020									Three Months Ended March 31, 2019
	Continuing Operations			Discontinued Operations			Total			Continuing Operations			Discontinued Operations			Total
	(In millions, except per share data)
Net Income (Loss)	$	(31.1	)	$	7.3		$	(23.7	)	$	(21.6	)	$	(12.6	)	$	(34.1	)
Adjustments
Restructuring and other charges(a)		—			2.1			2.1			—			2.9			2.9
Equity-based compensation expense(b)		0.8			0.1			0.9			0.6			0.1			0.7
Foreign currency loss (gain), net(c)		31.0			(2.1	)		28.9			10.6			(0.6	)		10.0
Derivative valuation loss (gain), net(d)		(0.1	)		—			(0.1	)		0.1			—			0.1
Loss on early extinguishment of long-term borrowings, net(e)		—			—			—			0.0			—			0.0
Others(f)		0.6			—			0.6			0.6			—			0.6
Adjusted Net Income (Loss)	$	1.1		$	7.5		$	8.6		$	(9.7	)	$	(10.2	)	$	(19.9	)
Reported earnings (loss) per share – basic	$	(0.89	)	$	0.21		$	(0.68	)	$	(0.63	)	$	(0.37	)	$	(1.00	)
Reported earnings (loss) per share – diluted	$	(0.89	)	$	0.21		$	(0.68	)	$	(0.63	)	$	(0.37	)	$	(1.00	)
Weighted average number of shares – basic		34,893,157			34,893,157			34,893,157			34,194,878			34,194,878			34,194,878
Weighted average number of shares – diluted		34,893,157			34,893,157			34,893,157			34,194,878			34,194,878			34,194,878
Adjusted Net Income (Loss) per share – basic	$	0.03		$	0.21		$	0.25		$	(0.28	)	$	(0.30	)	$	(0.58	)
Adjusted Net Income (Loss) per share – diluted	$	0.03		$	0.21		$	0.24		$	(0.28	)	$	(0.30	)	$	(0.58	)
Weighted average number of shares – basic		34,893,157			34,893,157			34,893,157			34,194,878			34,194,878			34,194,878
Weighted average number of shares – diluted		35,883,200			35,883,200			35,883,200			34,194,878			34,194,878			34,194,878

(a) For the three months ended March 31, 2020, this adjustment eliminates a $2.1 million in professional fees incurred in connection with the Foundry Services Group business and Fab 4. For the three months ended March 31, 2019, this adjustment eliminates the impact of a $2.2 million restructuring related charge with respect to the fab employees. This adjustment also eliminates a $0.7 million legal costs incurred in connection with the Foundry Services Group and Fab 4.

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(b) This adjustment eliminates the impact of non-cash equity-based compensation expenses. Although we expect to incur non-cash equity-based compensation expenses in the future, these expenses do not generally require cash settlement, and, therefore, are not used by us to assess the profitability of our operations. We believe that analysts and investors will find it helpful to review our operating performance without the effects of these non-cash expenses as supplemental information.

(c) This adjustment mainly eliminates the impact of non-cash foreign currency translation associated with intercompany debt obligations with respect to the continuing operations and foreign currency denominated receivables and payables, as well as the cash impact of foreign currency transaction gains or losses on collection of such receivables and payment of such payables. Although we expect to incur foreign currency translation gains or losses in the future, we believe that analysts and investors will find it helpful to review our operating performance without the effects of these primarily non-cash gains or losses, which we cannot control. Additionally, we believe the isolation of this adjustment provides investors with enhanced comparability to prior and future periods of our operating performance results.

(d) This adjustment eliminates the impact of gain or loss recognized in income on derivatives, which represents derivatives value changes excluded from the risk being hedged. We enter into derivative transactions to mitigate foreign exchange risks. As our derivative transactions are limited to a certain portion of our expected cash flows denominated in US dollars, and we do not enter into derivative transactions for trading or speculative purposes, we do not believe that these charges or gains are indicative of our core operating performance.

(e) This adjustment eliminates $0.04 million in expenses related to the repurchase of a portion of the 2021 Notes and the Exchangeable Notes in the first quarter of 2019.

(f) For the three months ended March 31, 2020, this adjustment eliminates non-recurring professional service fees and expenses incurred in connection with certain treasury and finance initiatives. For the three months ended March 31, 2019, this adjustment eliminates a $0.5 million legal settlement charge related to dispute with a prior customer and a legal expense related to the indemnification of a former employee, which is borne by us under a negotiated separation agreement. We do not believe that these charges are indicative of our core operating performance and have been excluded for comparative purposes.

There was no tax impact from the adjustments to net income (loss) to calculate our Adjusted Net Income (Loss) for the three months ended March 31, 2020 and 2019 due to net operating loss carry-forwards available to offset taxable income and full allowance for deferred tax assets. We believe that all adjustments to net income (loss) used to calculate Adjusted Net Income (Loss) were applied consistently to the periods presented.

Adjusted Net Income (Loss) has limitations as an analytical tool, and you should not consider it in isolation, or as a substitute for analysis of our results as reported under US GAAP. Some of these limitations are:

• Adjusted Net Income (Loss) does not reflect changes in, or cash requirements for, our working capital needs;

• Adjusted Net Income (Loss) does not consider the potentially dilutive impact of issuing equity-based compensation to our management team and employees;

• Adjusted Net Income (Loss) does not reflect the costs of holding certain assets and liabilities in foreign currencies; and

• other companies in our industry may calculate Adjusted Net Income (Loss) differently than we do, limiting its usefulness as a comparative measure.

Because of these limitations, Adjusted Net Income (Loss) should not be considered as a measure of profitability of our business. We compensate for these limitations by relying primarily on our US GAAP results and using Adjusted Net Income (Loss) only supplementally.

Factors Affecting Our Results of Operations

Net Sales. We derive substantially all of our sales (net of sales returns and allowances) from our standard products business. Our product inventory is primarily located in Korea and is available for drop shipment globally. Outside of Korea, we maintain limited product inventory, and our sales representatives generally relay orders to our factories in Korea for fulfillment. We have strategically located our sales and technical support offices near concentrations of major customers. Our sales offices are located in Korea, the United States, Japan and Greater China. Our network of authorized agents and distributors is in the United States, Europe and the Asia Pacific region.

We recognize revenue when risk and reward of ownership pass to the customer either upon shipment, upon product delivery at the customer’s location or upon customer acceptance, depending on the terms of the arrangement. For the three months ended March 31, 2020 and 2019, we sold products to 135 and 132 customers, respectively, and our net sales to our ten largest customers represented 90% and 88% of our net sales — standard products business, respectively. Our Fab 3 production capacity is approximately 31,000 semiconductor wafers per month. We believe our large-scale, cost-effective fabrication facilities enable us to rapidly adjust our production levels to meet shifts in demand by our end customers.

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We will provide the Transitional Fab 3 Foundry Services for a period up to three years after the sale of the Foundry Services Group business and Fab 4. For the periods prior to the sale of the Foundry Services Group business and Fab 4 (which is accounted for as a discontinued operation beginning in the first quarter of 2020), revenue derived from the Transitional Fab 3 Foundry Services is recorded at cost in both of our continuing and discontinued operations.

Gross Profit. Our overall gross profit generally fluctuates as a result of changes in overall sales volumes and in the average selling prices of our products and services. Other factors that influence our gross profit include changes in product mix, the introduction of new products and services and subsequent generations of existing products and services, shifts in the utilization of our manufacturing facility and the yields achieved by our manufacturing operations, changes in material, labor and other manufacturing costs including outsourced manufacturing expenses, and variation in depreciation expense.

Average Selling Prices. Average selling prices for our products tend to be highest at the time of introduction of new products which utilize the latest technology and tend to decrease over time as such products mature in the market and are replaced by next generation products. We strive to offset the impact of declining selling prices for existing products through our product development activities and by introducing new products that command selling prices above the average selling price of our existing products. In addition, we seek to manage our inventories and manufacturing capacity so as to preclude losses from product and productive capacity obsolescence.

Material Costs. Our cost of material consists of costs of raw materials, such as silicon wafers, chemicals, gases and tape and packaging supplies. We use processes that require specialized raw materials, such as silicon wafers, that are generally available from a limited number of suppliers. If demand increases or supplies decrease, the costs of our raw materials could increase significantly.

Labor Costs. A significant portion of our employees are located in Korea. Under Korean labor laws, most employees and certain executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of March 31, 2020, approximately 98% of our employees were eligible for severance benefits.

Depreciation Expense. We periodically evaluate the carrying values of long-lived assets, including property, plant and equipment and intangible assets, as well as the related depreciation periods. We depreciated our property, plant and equipment using the straight-line method over the estimated useful lives of our assets. Depreciation rates vary from 30-40 years on buildings to 5 to 12 years for certain equipment and assets. Our evaluation of carrying values is based on various analyses including cash flow and profitability projections. If our projections indicate that future undiscounted cash flows are not sufficient to recover the carrying values of the related long-lived assets, the carrying value of the assets is impaired and will be reduced, with the reduction charged to expense so that the carrying value is equal to fair value.

Selling Expenses. We sell our products worldwide through a direct sales force as well as a network of sales agents and representatives to OEMs, including major branded customers and contract manufacturers, and indirectly through distributors. Selling expenses consist primarily of the personnel costs for the members of our direct sales force, a network of sales representatives and other costs of distribution. Personnel costs include base salary, benefits and incentive compensation.

General and Administrative Expenses. General and administrative expenses consist of the costs of various corporate operations, including finance, legal, human resources and other administrative functions. These expenses primarily consist of payroll-related expenses, consulting and other professional fees and office facility-related expenses.

Research and Development. The rapid technological change and product obsolescence that characterize our industry require us to make continuous investments in research and development. Product development time frames vary but, in general, we incur research and development costs one to two years before generating sales from the associated new products. These expenses include personnel costs for members of our engineering workforce, cost of photomasks, silicon wafers and other non-recurring engineering charges related to product design. Additionally, we develop base line process technology through experimentation and through the design and use of characterization wafers that help achieve commercially feasible yields for new products. The majority of research and development expenses of our display business are material and design-related costs for OLED display driver IC product development involving 40-nanometer or finer processes. The majority of research and development expenses of our power business are certain equipment, material and design-related costs for power discrete products and material and design-related costs for power IC products. Power IC uses standard BCD process technologies which can be sourced from multiple foundries, including Fab 4.

Interest Expense. Our interest expense was incurred primarily under our 2021 Notes and our Exchangeable Notes.

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Impact of Foreign Currency Exchange Rates on Reported Results of Operations. Historically, a portion of our revenues and greater than the majority of our operating expenses and costs of sales have been denominated in non-US currencies, principally the Korean won, and we expect that this will remain true in the future. Because we report our results of operations in US dollars converted from our non-US revenues and expenses based on monthly average exchange rates, changes in the exchange rate between the Korean won and the US dollar could materially impact our reported results of operations and distort period to period comparisons. In particular, because of the difference in the amount of our consolidated revenues and expenses that are in US dollars relative to Korean won, depreciation in the US dollar relative to the Korean won could result in a material increase in reported costs relative to revenues, and therefore could cause our profit margins and operating income (loss) to appear to decline materially, particularly relative to prior periods. The converse is true if the US dollar were to appreciate relative to the Korean won. Moreover, our foreign currency gain or loss would be affected by changes in the exchange rate between the Korean won and the US dollar as a substantial portion of non-cash translation gain or loss is associated with the intercompany long-term loans to our Korean subsidiary, which is denominated in US dollars. As of March 31, 2020, the outstanding intercompany loan balance including accrued interest between our Korean subsidiary and our Dutch subsidiary was $684.0 million. As a result of such foreign currency fluctuations, it could be more difficult to detect underlying trends in our business and results of operations. In addition, to the extent that fluctuations in currency exchange rates cause our results of operations to differ from our expectations or the expectations of our investors, the trading price of our stock could be adversely affected.

From time to time, we may engage in exchange rate hedging activities in an effort to mitigate the impact of exchange rate fluctuations. Our Korean subsidiary enters into foreign currency forward and zero cost collar contracts in order to mitigate a portion of the impact of US dollar-Korean won exchange rate fluctuations on our operating results. Obligations under these foreign currency forward and zero cost collar contracts must be cash collateralized if our exposure exceeds certain specified thresholds. These forward and zero cost collar contracts may be terminated by a counterparty in a number of circumstances, including if our long-term debt rating falls below B-/B3 or if our total cash and cash equivalents is less than $30.0 million at the end of a fiscal quarter unless a waiver is obtained from the counterparty. We cannot assure that any hedging technique we implement will be effective. If our hedging activities are not effective, changes in currency exchange rates may have a more significant impact on our results of operations.

Foreign Currency Gain or Loss. Foreign currency translation gains or losses on transactions by us or our subsidiaries in a currency other than our or our subsidiaries’ functional currency are included in foreign currency gain (loss), net in our statements of operations. A substantial portion of this net foreign currency gain or loss relates to non-cash translation gain or loss related to the principal balance of intercompany balances at our Korean subsidiary that are denominated in US dollars. This gain or loss results from fluctuations in the exchange rate between the Korean won and US dollar.

Income Taxes. We record our income taxes in each of the tax jurisdictions in which we operate. This process involves using an asset and liability approach whereby deferred tax assets and liabilities are recorded for differences in the financial reporting bases and tax bases of our assets and liabilities. We exercise significant management judgment in determining our provision for income taxes, deferred tax assets and liabilities. We assess whether it is more likely than not that the deferred tax assets existing at the period-end will be realized in future periods. In such assessment, we consider all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent results of operations. In the event we were to determine that we would be able to realize the deferred income tax assets in the future in excess of their net recorded amount, we would adjust the valuation allowance, which would reduce the provision for income taxes.

We are subject to income- or non-income-based tax examinations by tax authorities of the US, Korea and multiple other foreign jurisdictions, where applicable, for all open tax years. Significant estimates and judgments are required in determining our worldwide provision for income- or non-income based taxes. Some of these estimates are based on interpretations of existing tax laws or regulations. The ultimate amount of tax liability may be uncertain as a result.

Discontinued Operations. On March 30, 2020, we entered the BTA for the sale of its Foundry Services Group business and our Fab 4 to the Buyer. As a result, the results of the Foundry Services Group were classified as discontinued operations in our consolidated statements of operations and excluded from both continuing operations and segment results for all periods presented.

Capital Expenditures. We primarily invest in manufacturing equipment, software design tools and other tangible assets mainly for fabrication facility maintenance, capacity expansion and technology improvement. Capacity expansions and technology improvements typically occur in anticipation of increases in demand. We typically pay for capital expenditures in partial installments with portions due on order, delivery and final acceptance. Our capital expenditures mainly include our payments for the purchase of property, plant and equipment.

Inventories. We monitor our inventory levels in light of product development changes and market expectations. We may be required to take additional charges for quantities in excess of demand, cost in excess of market value and product age. Our analysis may take into consideration historical usage, expected demand, anticipated sales price, new product development schedules, the effect new products might have on the sales of existing products, product age, customer design activity, customer concentration and other factors. These forecasts require us to estimate our ability to predict demand for current and future products and compare those estimates with our current inventory levels and inventory purchase commitments. Our forecasts for our inventory may differ from actual inventory use.

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Results of Operations – Comparison of Three Months Ended March 31, 2020 and 2019

The following table sets forth consolidated results of operations for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31, 2020						Three Months Ended March 31, 2019
	Amount			% of Total revenues			Amount			% of Total revenues			Change Amount
	(In millions)
Revenues
Net sales – standard products business	$	110.7			91.9	%	$	100.3			93.5	%	$	10.5
Net sales – transitional Fab 3 foundry services		9.7			8.1			7.0			6.5			2.7
Total revenues		120.5			100.0			107.3			100.0			13.2
Cost of sales
Cost of sales – standard products business		81.6			67.7			81.2			75.7			0.4
Cost of sales – transitional Fab 3 foundry services		9.7			8.1			7.0			6.5			2.7
Total cost of sales		91.3			75.8			88.2			82.3			3.1
Gross profit		29.1			24.2			19.0			17.7			10.1
Selling, general and administrative expenses		12.1			10.0			12.0			11.2			0.1
Research and development expenses		10.5			8.7			12.0			11.2			(1.5	)
Other charges		0.6			0.5			—			—			0.6
Operating income (loss)		6.0			5.0			(5.1	)		(4.7	)		11.0
Interest expense		(5.6	)		(4.7	)		(5.6	)		(5.3	)		0.0
Foreign currency loss, net		(31.0	)		(25.7	)		(10.6	)		(9.9	)		(20.4	)
Loss on early extinguishment of long-term borrowings, net		—			—			(0.0	)		(0.0	)		0.0
Others, net		0.8			0.7			0.6			0.5			0.3
		(35.7	)		(29.7	)		(15.7	)		(14.6	)		(20.0	)
Loss from continuing operations before income tax expense		(29.8	)		(24.7	)		(20.8	)		(19.4	)		(9.0	)
Income tax expense		1.3			1.1			0.8			0.7			0.5
Loss from continuing operations		(31.1	)		(25.8	)		(21.6	)		(20.1	)		(9.5	)
Income (loss) from discontinued operations, net of tax		7.3			6.1			(12.6	)		(11.7	)		19.9
Net loss	$	(23.7	)		(19.7	)	$	(34.1	)		(31.8	)	$	10.4

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The following sets forth information relating to our continuing operations:

	Three Months Ended March 31, 2020					Three Months Ended March 31, 2019
	Amount		% of Total Revenues			Amount		% of Total Revenues			Change Amount
	(In millions)
Revenues
Net sales – standard products business
Display Solutions	$	77.6		64.4	%	$	58.2		54.3	%	$	19.4
Power Solutions		33.1		27.5			42.0		39.2			(8.9	)
Total standard products business		110.7		91.9			100.3		93.5			10.5
Net sales – transitional Fab 3 foundry services		9.7		8.1			7.0		6.5			2.7
Total revenues	$	120.5		100.0	%	$	107.3		100.0	%	$	13.2
	Three Months Ended March 31, 2020					Three Months Ended March 31, 2019
	Amount		% of Net sales			Amount		% of Net sales			Change Amount
	(In millions)
Gross Profit
Gross profit – standard products business	$	29.1		26.3	%	$	19.0		19.0	%	$	10.1
Gross profit – transitional Fab 3 foundry services		—		—			—		—			—
Total gross profit	$	29.1		24.2	%	$	19.0		17.7	%	$	10.1

Revenues

Total revenues were $120.5 million for the three months ended March 31, 2020, a $13.2 million, or 12.3%, increased compared to $107.3 million for the three months ended March 31, 2019. This increase was primarily due to an increase in revenue related to our standard products business as described below.

The standard products business. Net sales from our standard products business were $110.7 million for the three months ended March 31, 2020, a 10.5 million, or 10.4%, increased compared to $100.3 million for the three months ended March 31, 2019. This increase was primarily attributable to an increase in revenue related to our mobile OLED display driver ICs due to an increase in new OLED smartphones by Chinese and Korean manufacturers, which were offset in part by lower demand for power products as a result of COVID-19-related supply chain issues and market softness in China, and a strategic reduction of our lower margin LCD business.

The transitional Fab 3 foundry services. Net sales form the transitional Fab 3 foundry services were $9.7 million and $7.0 million for the three months ended March 31, 2020 and 2019, respectively.

Gross Profit

Total gross profit was $29.1 million for the three months ended March 31, 2020 compared to $19.0 million for the three months ended March 31, 2019, a $10.1 million, or 53.1%, increase. Gross profit as a percentage of net sales for the three months ended March 31, 2020 increased to 24.2% compared to 17.7% for the three months ended March 31, 2019. The increase in gross profit and gross profit as a percentage of net sales was due to our standard products business as further described below.

The standard products business. Gross profit from the standard products business was $29.1 million for the three months ended March 31, 2020, which represented a $10.1 million, or 53.1%, increase from gross profit of $19.0 million for the three months ended March 31, 2019. Gross profit as a percentage of net sales for the three months ended March 31, 2020 increased to 26.3% compared to 19.0% for the three months ended March 31, 2019. The increase in both gross profit and gross profit margin was primarily attributable to an improved product mix and a decrease in inventory reserve related to a legacy display product.

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Net Sales – Standard Products Business by Geographic Region

We report net sales – standard products business by geographic region based on the location to which the products are billed. The following table sets forth our net sales - standard products business by geographic region and the percentage of total net sales - standard products business represented by each geographic region for the three months ended March 31, 2020 and 2019:

	Three Months Ended March 31, 2020					Three Months Ended March 31, 2019
	Amount		% of Net Sales – standard products business			Amount		% of Net Sales – standard products business			Change Amount
	(In millions)
Korea	$	30.8		27.8	%	$	34.6		34.6	%	$	(3.8	)
Asia Pacific (other than Korea)		77.5		70.0			63.7		63.6			13.8
United States		0.7		0.6			0.5		0.5			0.2
Europe		1.0		0.9			1.1		1.1			(0.2	)
Others		0.7		0.6			0.3		0.3			0.4
	$	110.7		100.0	%	$	100.3		100.0	%	$	10.5

Net sales – standard products business in Korea for the three months ended March 31, 2020 decreased from $34.6 million to $30.8 million compared to the three months ended March 31, 2019, which represented a decrease of $3.8 million, or 11.1%, primarily due to lower demand for power products such as high-end MOSFETs primarily for TV and smartphone applications, and a strategic reduction of our lower margin LCD business, which was offset in part by an increase in revenue related to our mobile OLED display driver ICs due to an increase in demand for production of new OLED smartphones by Chinese and Korean manufacturers.

Net sales – standard products business in Asia Pacific (other than Korea) for the three months ended March 31, 2020 increased to $77.5 million from $63.7 million in the three months ended March 31, 2019, which represented an increase of $13.8 million, or 21.6%, primarily due to an increase in revenue related to our mobile OLED display driver ICs due to an increase in demand for production of new OLED smartphones by Chinese and Korean manufacturers, which is offset in part by lower demand for power products as a result of COVID-19-related supply chain issues and market softness in China.

Operating Expenses

Selling, General and Administrative Expenses. Selling, general and administrative expenses were $12.1 million, or 10.0% of total revenues, for the three months ended March 31, 2020, compared to $12.0 million, or 11.2% of total revenues, for the three months ended March 31, 2019. The increase of $0.1 million, or 0.5%, was primarily attributable to an increase in legal and consulting service fees and equity-based compensation. This increase was offset in part by a $0.5 million legal settlement charge related to dispute with a prior customer recorded in the first quarter of 2019.

Research and Development Expenses. Research and development expenses were $10.5 million, or 8.7% of total revenues, for the three months ended March 31, 2020, compared to $12.0 million, or 11.2% of total revenues, for the three months ended March 31, 2019. The decrease of $1.5 million, or 12.7%, was primarily attributable to the timing of development activities for our 28-nanometer OLED display driver ICs and a decrease in outside service fees and various overhead expenses.

Other Charges. Other charges were $0.6 million for the three months ended March 31, 2020, which were consisted of professional service fees and expenses incurred in connection with certain treasury and finance initiatives.

Operating Income (Loss)

As a result of the foregoing, operating income of $6.0 million was recorded for the three months ended March 31, 2020 compared to operating loss of $5.1 million the three months ended March 31, 2019. As discussed above, the increase in operating income of $11.0 million resulted primarily from a $10.1 million increase in gross profit and a $1.5 million decrease in research and development expenses.

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Other Income

Interest Expense. Interest expenses were $5.6 million and $5.6 million for the three months ended March 31, 2020 and March 31, 2019, respectively.

Foreign Currency Loss, Net. Net foreign currency loss for the three months ended March 31, 2020 was $31.0 million compared to net foreign currency loss of $10.6 million for the three months ended March 31, 2019. The net foreign currency loss for the three months ended March 31, 2020 and March 31, 2019 was due to the depreciation in value of the Korean won relative to the US dollar during the period.

A substantial portion of our net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to our Korean subsidiary, which are denominated in US dollars, and are affected by changes in the exchange rate between the Korean won and the US dollar. As of March 31, 2020 and March 31, 2019, the outstanding intercompany loan balances including accrued interest between our Korean subsidiary and our Dutch subsidiary were $684 million and $666 million, respectively. Foreign currency translation gain or loss from intercompany balances were included in determining our consolidated net income since the intercompany balances were not considered long-term investments in nature because management intended to settle these intercompany balances at their respective maturity dates.

Loss on Early Extinguishment of Long-Term Borrowings, Net. For the three months ended March 31, 2019, we repurchased a principal amount of $0.3 million and $0.9 million of the 2021 Notes and the Exchangeable Notes, respectively. In connection with these repurchases, we recognized a $0.04 million of net loss.

Others, Net. Others were comprised of rental income, interest income, and gains and losses from valuation of derivatives which were designated as hedging instruments. Others for the three months ended March 31, 2020 and March 31, 2019 was $0.8 million and $0.6 million, respectively.

Income Tax Expense

Income tax expense were $1.3 million and $0.8 million for three months ended March 31, 2020 and 2019, respectively, and were primarily attributable to interest on intercompany loan balances. Income tax expense was recorded for our Korean subsidiary based on the estimated taxable income for the respective periods, combined with its ability to utilize net operating loss carryforwards up to 60% in 2020 and 2019.

Loss from continuing operations

As a result of the foregoing, a net loss from continuing operations decreased by $9.5 million for the three months ended March 31, 2020 compared to the three months ended March 31, 2019. As discussed above, the increase in net loss from continuing operations primarily resulted from a $20.4 million increase in net foreign currency loss, which was offset in part by an $11.0 million increase in operating income.

Income (loss) from discontinued operations, net of tax

On March 30, 2020, we entered into the BTA for the sale of our Foundry Services Group business and Fab 4. As a result, the results of the Foundry Services Group were classified as discontinued operations in our consolidated statements of operations and excluded from our continuing operations for all periods presented.

Net income from discontinued operations for the three months ended March 31, 2020 was $7.3 million compared to net loss from discontinued operations of $12.6 million for the three months ended March 31, 2019. The $19.9 million increase in net income from discontinued operations primarily resulted from a $17.0 million increase in gross profit, a $1.5 million increase in foreign currency gain, net, a $0.8 million decrease in restructuring and other charges, a $0.6 million decrease in research and development expenses and a $0.4 million decrease in selling, general and administrative expenses, which was offset in part by a $0.4 million increase in income tax expense.

Net loss

As a result of the foregoing, a net loss of $23.7 million was recorded for the three months ended March 31, 2020 compared to a net loss of $34.1 million for the three months ended March 31, 2019. As discussed above, the decrease in net loss of $10.4 million primarily resulted from a $19.9 million increase in net income from discontinued operations, which was offset by a $9.5 million increase in net loss from continuing operations.

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Liquidity and Capital Resources

Our principal capital requirements are to fund sales and marketing, invest in research and development and capital equipment, to make debt service payments and to fund working capital needs. We calculate working capital as current assets less current liabilities.

Our principal sources of liquidity are our cash, cash equivalents, our cash flows from operations and our financing activities. Our ability to manage cash and cash equivalents may be limited, as our primary cash flows are dictated by the terms of our sales and supply agreements, contractual obligations, debt instruments and legal and regulatory requirements. From time to time, we may sell accounts receivable to third parties under factoring agreements or engage in accounts receivable discounting to facilitate the collection of cash. For a description of our factoring arrangements and accounts receivable discounting, please see “Item 1. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 3. Sales of Accounts Receivable and Receivable Discount Program” included elsewhere in this Report. In addition, from time to time, we may make payments to our vendors on extended terms with their consent. As of March 31, 2020, we do not have any accounts payable on extended terms or payment deferment with our vendors.

On March 30, 2020, we entered into the BTA for the sale of our Foundry Services Group business and the Fab 4, which has a purchase price equal to the KRW equivalent of $344.7 million in cash, subject to working capital adjustments set forth in the BTA. The sale is expected to close within approximately four to six months from the date of the BTA, subject to customary closing conditions, whereupon we expect to use a portion of the cash received to repay indebtedness and for general corporate purposes. We currently believe that we will have sufficient cash reserves from cash on hand and expected cash from operations, as well as cash received from the consummation of the BTA, to fund our operations as well as capital expenditures for the next twelve months and the foreseeable future.

On January 17, 2017, we issued an aggregate of $86.3 million in principal amount of our Exchangeable Notes. We may, from time to time, repurchase a portion of our outstanding 2021 Notes and our Exchangeable Notes through open market purchases or privately negotiated transactions subject to prevailing market conditions and our available cash reserves. In December 2018 and February 2019, we repurchased a principal amount equal to $1.6 million $0.9 million, respectively, of the Exchangeable Notes in the open market. As of March 31, 2020, our Exchangeable Notes were reclassified as a current liability as their maturities were less than one year.

Cash Flows from Operating Activities

Cash inflow provided by operating activities totaled $21.1 million for the three months ended March 31, 2020, compared to $11.7 million of cash outflow used in operating activities for the three months ended March 31, 2019. The net operating cash inflow for the three months ended March 31, 2020 reflects our net loss of $23.7 million, as adjusted favorably by $55.8 million, which mainly consisted of depreciation and amortization, provision for severance benefits and net foreign currency loss, and net unfavorable impact of $11.0 million from changes of operating assets and liabilities.

Our working capital balance as of March 31, 2020 was $175.5 million compared to $245.5 million as of December 31, 2019. The $70.0 million decrease was primarily attributable to a reclassification of $82.3 million for our Exchangeable Notes, which was recorded as a current portion of long-term borrowings, net in the first quarter of 2020, as the maturity is less than one year. This decrease was offset in part by a $13.5 million increase in accounts receivable, net.

Cash Flows from Investing Activities

Cash outflow used in investing activities totaled $7.1 million for the three months ended March 31, 2020, compared to $9.8 million of cash outflow used in investing activities for the three months ended March 31, 2019. The $2.7 million decrease was primarily attributable to a $7.9 million decrease in purchase of plant, property and equipment, which was offset in part by a $5.8 million net increase in hedge collateral.

Cash Flows from Financing Activities

Cash outflow used in financing activities totaled $1.2 million for the three months ended March 31, 2020, compared to $3.7 million of cash outflow used in financing activities for the three months ended March 31, 2019. The financing cash outflow for the three months ended March 31, 2020 was primarily attributable to a payment of $1.0 million for the repurchase of our common stock to satisfy tax withholding obligation in connection with the vesting of restricted stock units. The financing cash outflow for the three months ended March 31, 2019 was primarily attributable to a payment of $1.2 million for the repurchases of 2021 Notes and Exchangeable Notes in the first quarter of 2019 and a payment of $2.4 million for the repurchases of our common stock in January 2019 pursuant to our stock repurchase plan.

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For additional cash flow information associated with our discontinued operation, please see “Item 1. Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note 2 – Discontinued Operations and Assets Held for Sale” included elsewhere in this Report.

Capital Expenditures

We routinely make capital expenditures for fabrication facility maintenance, enhancement of our existing facilities and reinforcement of our global research and development capability. For the three months ended March 31, 2020, capital expenditures for plant, property and equipment were $3.4 million, a $7.9 million, or 70.1%, decrease from $11.2 million for the three months ended March 31, 2019. The decrease was mainly due to the timing of our equipment deployment. The capital expenditures for the three months ended March 31, 2020 and 2019 were related to meeting our customer demand, and supporting technology and facility improvement at our fabrication facilities.

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Contractual Obligations

The following summarizes our contractual obligations as of March 31, 2020:

	Payments Due by Period
	Total		Remainder of 2020		2021		2022		2023		2024		Thereafter
	(In millions)
Exchangeable Notes(1)	$	87.9	$	2.1	$	85.8	$	—	$	—	$	—	$	—
Senior notes(2)		246.5		7.4		239.1		—		—		—		—
Operating leases(3)		1.5		1.2		0.2		0.0		0.0		—		—
Finance leases(3)		0.3		0.1		0.1		0.1		0.1		—		—
Water Treatment Services(3)(4)		30.0		3.0		3.8		3.8		3.7		3.6		12.2
Others(5)		10.7		7.5		3.2		0.0		0.0		0.0		—

(1) Interest payments as well as $83.7 million aggregate principal amount of the Exchangeable Notes outstanding as of March 31, 2020, which bear interest at a rate of 5.0% per annum and are scheduled to mature in 2021 if not earlier exchanged at the price of approximately $8.26 per share of common stock.

(2) Interest payments as well as $224.3 million aggregate principal amount of the 2021 Notes outstanding as of March 31, 2020, which bear interest at a rate of 6.625% per annum and are scheduled to mature in 2021 if not earlier redeemed.

(3) Assumes constant currency exchange rate for Korean won to US dollars of 1,222.6:1, the exchange rate as of March 31, 2020.

(4) Includes future payments for water treatment services for our fabrication facility in Gumi, Korea based on the contractual terms.

(5) Includes license agreements, funding obligations for the accrued severance benefits and other contractual obligations.

The indentures relating to the Exchangeable Notes and the 2021 Notes contain covenants as detailed in “Item 1. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 11. Borrowings” in this Report. Those covenants are subject to a number of exceptions and qualifications. Certain of those restrictive covenants will terminate if the Exchangeable Notes or the 2021 Notes are rated investment grade at any time.

We lease office space and equipment under various operating lease agreements that expire through 2023.

We are a party to an arrangement for the water treatment facility in Gumi, Korea, which includes a 10-year service agreement.

Beginning in July 2018, we have contributed a certain percentage of severance benefits, accrued for eligible employees for their services beginning January 1, 2018, to certain severance insurance deposit accounts. These accounts consist of time deposits and other guaranteed principal and interest, and are maintained at insurance companies, banks or security companies for the benefit of employees. We deduct the contributions made to these severance insurance deposit accounts from our accrued severance benefits. As of March 31, 2020, our accrued severance benefits totaled $48.8 million and cumulative contributions to these severance insurance deposit accounts amounted to $1.6 million. Our related cash payments for future contributions are $3.3 million for the remaining period of 2020, to the extent that our obligations are contractual, fixed and reasonably estimable.

We follow US GAAP guidance on uncertain tax positions. Our unrecognized tax benefits totaled $0.4 million as of March 31, 2020. These unrecognized tax benefits have been excluded from the above table because we cannot estimate the period of cash settlement with the respective taxing authorities.

Off-Balance Sheet Arrangements

As of March 31, 2020, we did not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of Regulation S-K.

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Critical Accounting Policies and Estimates

Preparing financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, the reported amounts of revenues and expenses during the reporting periods and the related disclosures in our consolidated financial statements and accompanying notes.

We believe that our significant accounting policies, which are described further in Note 1 to our consolidated financial statements in our Annual Report on Form 10-K for our fiscal year ended December 31, 2019, or our 2019 Form 10-K, are critical due to the fact that they involve a high degree of judgment and estimates about the effects of matters that are inherently uncertain. We base these estimates and judgments on historical experience, knowledge of current conditions and other assumptions and information that we believe to be reasonable. Estimates and assumptions about future events and their effects cannot be determined with certainty. Accordingly, these estimates may change as new events occur, as more experience is acquired, as additional information is obtained and as the business environment in which we operate changes.

A description of our critical accounting policies that involve significant management judgement appears in our 2019 Form 10-K, under “Management’s Discussion and Analysis of Financial Conditions and Reports of Operations—Critical Accounting Policies and Estimates.” There have been no material changes in the matters for which we make accounting estimates in the preparation of our consolidated financial statements for the three months ended March 31, 2020, except for those related to discontinued operations as a result of changes in reporting that relate to the sale of the Foundry Services Group business and Fab 4.

Discontinued Operations. We review the presentation of the planned disposition of the Foundry Services Group business and Fab 4 based on the available information and events that have occurred. The review consists of evaluating whether the disposition meets the definition of a component for which the operations and cash flows are clearly distinguishable from the other components of the business, and if so, whether it is anticipated that after the disposal the cash flows of the component would be eliminated from continuing operations and whether the disposition represents a strategic shift that has a major effect on operations and financial results. In addition, we evaluate whether the Foundry Services Group business and Fab 4 have met the criteria as assets held for sale. In order for a planned disposition to be classified as assets held for sale, the established criteria must be met as of the reporting date, including an active program to market the sale and the expected disposition of within one year.

The Foundry Services Group business and Fab 4 is presented as discontinued operations beginning in the first quarter 2020 since all the criteria described above are met. For a divestiture that qualifies as a discontinued operation, all comparative periods presented are reclassified in the consolidated balance sheet. Additionally, the results of operations of a discontinued operation are reclassified to income or loss from discontinued operations, net of tax, for all periods presented. See “Item 1. Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note 2 - Discontinued Operations and Assets Held for Sale” for additional information.

Recent Accounting Pronouncements

For a full description of new accounting pronouncements and recently adopted accounting pronouncements, please see “Item 1. Interim Consolidated Financial Statements—Notes to Consolidated Financial Statements—Note 1. Business, Basis of Presentation and Significant Accounting Policies” in this Report.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to the market risk that the value of a financial instrument will fluctuate due to changes in market conditions, primarily from changes in foreign currency exchange rates and interest rates. In the normal course of our business, we are subject to market risks associated with interest rate movements and currency movements on our assets and liabilities.

Foreign Currency Exposures

We have exposure to foreign currency exchange rate fluctuations on net income from our subsidiaries denominated in currencies other than US dollars, as our foreign subsidiaries in Korea, Taiwan, China, Japan and Hong Kong use local currency as their functional currency. From time to time these subsidiaries have cash and financial instruments in local currency. The amounts held in Japan, Taiwan, Hong Kong and China are not material in regards to foreign currency movements. However, based on the cash and financial instruments balance at March 31, 2020 for our Korean subsidiary, a 10% devaluation of the Korean won against the US dollar would have resulted in a decrease of $0.2 million in our US dollar financial instruments and cash balances.

See “Note 9. Derivative Financial Instruments” to our consolidated financial statements under “Item 1. Interim Consolidated Financial Statements” and “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations—Factors Affecting Our Results of Operations—Impact of Foreign Currency Exchange Rates on Reported Results of Operations” for additional information regarding our foreign exchange hedging activities.

Interest Rate Exposures

As of March 31, 2020, $83.74 million aggregate principal amount of our Exchangeable Notes were outstanding. Interest on the Exchangeable Notes accrues at a fixed rate of 5.0% per annum and is paid semi-annually every March 1 and September 1 of each year until the Exchangeable Notes mature on March 1, 2021. As of March 31, 2020, $224.25 million aggregate principal amount of our 2021 Notes were also outstanding. Interest on the 2021 Notes accrues at a fixed rate of 6.625% per annum and is paid semi-annually every January 15 and July 15 of each year until the 2021 Notes mature on July 15, 2021. Since the interest rates are fixed, we have no market interest rate risk related to the Exchangeable Notes and the 2021 Notes.

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Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic reports filed or submitted under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Principal Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

In connection with the preparation of this Report, we carried out an evaluation under the supervision of and with the participation of our management, including our Chief Executive Officer and Principal Financial Officer, as of March 31, 2020, of the effectiveness of the design and operation of our disclosure controls and procedures, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based upon this evaluation, our Chief Executive Officer and Principal Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2020.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended March 31, 2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

For a discussion of legal proceedings, see “Part I: Item 3. Legal Proceedings” of our 2019 Form 10-K.

See also “Part I: Item 1A. Risk Factors” and Note 18 of our 2019 Form 10-K for additional information.

Item 1A. Risk Factors

The Company is subject to risks and uncertainties, any of which could have a significant or material adverse effect on our business, financial condition, liquidity or consolidated financial statements. You should carefully consider the risk factors disclosed in Part I, Item 1A of our 2019 Form 10-K (including that the impact of the COVID-19 pandemic may also exacerbate the risks discussed therein), herein and other reports we have filed with the SEC. The risks described herein and therein are not the only ones we face. This information should be considered carefully together with the other information contained in this Report and the other reports and materials the Company files with the SEC.

Our business, results of operations and financial condition and prospects may be materially and adversely affected by the recent COVID-19 pandemic.

COVID-19, a virus causing potentially deadly respiratory tract infections, which has spread rapidly and enveloped most of the world, is a global public health crisis. On March 11, 2020, the World Health Organization characterized the COVID-19 outbreak as a pandemic. Governments in affected countries are imposing travel bans, quarantines and other emergency public health measures. In response to the virus, national and local governments in numerous countries around the world have implemented substantial lockdown measures, and other countries and local governments may enact similar policies. Private sector companies are also taking precautionary measures, such as requiring employees to work remotely, imposing travel restrictions and temporarily closing businesses and facilities. These restrictions, and future prevention and mitigation measures, are likely to have an adverse impact on global economic conditions, which could materially adversely affect our future operations. Uncertainties regarding the economic impact of the COVID-19 outbreak are likely to result in sustained market turmoil, which could also negatively impact our business, financial condition and cash flows.

These measures have impacted and may further impact our workforce and operations, the operations of our customers, and those of our respective vendors, suppliers, and partners. The disruptions to our operations caused by the COVID-19 outbreak may result in inefficiencies, delays and additional costs in our research and development, sales and marketing, and customer service efforts that we cannot fully mitigate through remote or other alternative work arrangements. Also, some suppliers of materials used in the production of our products may be located in areas that have been or will be more severely impacted by COVID-19, which could limit our ability to obtain sufficient materials for our products. In addition, the severe global economic disruption caused by COVID-19 may cause our customers and end-users of our products to suffer significant economic hardship, which could result in decreased demand for our products in the future and materially adversely affect our business, results of operations, financial condition (including liquidity) and prospects.

The impact of the COVID-19 pandemic continues to evolve and its duration and ultimate disruption on our customers, end-users, overall demand for our products, supply chain, and the related financial impact to us, cannot be estimated at this time. Should such disruption continue for an extended period of time, the impact could have a more severe adverse effect on our business, results of operations and financial condition (including liquidity). Additionally, weaker economic conditions generally could result in impairment in value of our tangible or intangible assets, or our ability to raise additional capital, if needed.

47

Item 6. Exhibits.

Exhibit Number	Description
10.1	Separation Agreement, dated as of March  26, 2020 among MagnaChip Semiconductor, Ltd. (Korea), MagnaChip Semiconductor Corporation and Jonathan W. Kim. (incorporated by reference to Exhibit 10.1 to our Current Report on Form  8-K filed on March 27, 2020).
10.2	Business Transfer Agreement, dated as of March  31, 2020 among by and among Magnus Semiconductor, LLC, MagnaChip Semiconductor S.A. and MagnaChip Semiconductor, Ltd. (incorporated by reference to Exhibit 10.1 to our Current Report on Form  8-K filed on March 31, 2020)
31.1#	Certification pursuant to Rule 13a-14(a) or Rule  15d-14(a) of the Securities Exchange Act of 1934 of the Chief Executive Officer.
31.2#	Certification pursuant to Rule 13a-14(a) or Rule  15d-14(a) of the Securities Exchange Act of 1934 of the Principal Financial Officer.
32.1†	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of the Chief Executive Officer.
32.2†	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, of the Chief Financial Officer.
101.INS#	XBRL Instance Document.
101.SCH#	XBRL Taxonomy Extension Schema Document.
101.CAL#	XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF#	XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB#	XBRL Taxonomy Extension Label Linkbase Document.
101.PRE#	XBRL Taxonomy Extension Presentation Linkbase Document.

Footnotes:

^#  Filed herewith

† Furnished herewith

48

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	MAGNACHIP SEMICONDUCTOR CORPORATION (Registrant)
Dated: May 11, 2020	By:	/s/ Young-Joon Kim
		Young-Joon Kim
		Chief Executive Officer (Principal Executive Officer)
Dated: May 11, 2020	By:	/s/ Theodore S. Kim
		Theodore S. Kim
		Chief Compliance Officer, Executive Vice President, General Counsel and Secretary (Principal Financial Officer)

49

EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO

SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Young-Joon Kim, certify that:

1. I have reviewed this quarterly report on Form 10-Q of MagnaChip Semiconductor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: May 11, 2020

/s/ Young-Joon Kim

Young-Joon Kim

Chief Executive Officer

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO

SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Theodore S. Kim, certify that:

1. I have reviewed this quarterly report on Form 10-Q of MagnaChip Semiconductor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: May 11, 2020

/s/ Theodore S. Kim

Theodore S. Kim

Chief Compliance Officer, Executive Vice President,

General Counsel and Secretary

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of MagnaChip Semiconductor Corporation (the “Company”) hereby certifies, to such officer’s knowledge, that:

(i) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

Dated: May 11, 2020	/s/ Young-Joon Kim
	Young-Joon Kim
	Chief Executive Officer
	(Principal Executive Officer)

The foregoing certification is being furnished solely pursuant to 18 U.S.C § 1350 and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of MagnaChip Semiconductor Corporation (the “Company”) hereby certifies, to such officer’s knowledge, that:

(i) the Quarterly Report on Form 10-Q of the Company for the quarterly period ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

Dated: May 11, 2020	/s/ Theodore S. Kim
	Theodore S. Kim
	Chief Compliance Officer, Executive Vice President, General Counsel and Secretary (Principal Financial Officer)

The foregoing certification is being furnished solely pursuant to 18 U.S.C § 1350 and shall not be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or incorporated by reference in any registration statement of the Company filed under the Securities Act of 1933, as amended.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

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Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Property, Plant and Equipment [Line Items]
Depreciation expenses	$ 2,409	$ 2,412
Payment of Termination Fee	34,470
Escrow Deposit	$ 34,470

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Business, Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) $ in Millions	Mar. 30, 2020 USD ($)	Mar. 31, 2020 Facilities
Foundry Services Group And Fab Four [Member] | Manufacturing Facility [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of facilities | Facilities		2
Foundry Services Group [Member]
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Proceeds from Sale of Business | $	$ 344.7

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Discontinued Operations and Assets Held for Sale - Schedule Of Results From Discontinued Operations Alternative Cash Flow Information (Detail) - Foundry Services Group And Fab Three Foundry Services [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Significant non-cash operating activities:
Depreciation and amortization	$ 5,365	$ 5,752
Provision for severance benefits	3,052	1,803
Stock-based compensation	123	106
Investing activities:
Capital expenditures	$ (1,479)	$ (4,469)

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Borrowings - Additional Information (Detail) - USD ($)				1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 17, 2017	Jan. 17, 2017	Jul. 18, 2013	Feb. 28, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 31, 2019
Debt Instrument [Line Items]
Repurchase of common stock, shares									1,795,444
Repurchase of common stock					$ 616,000	$ 2,585,000			$ 11,401,000
Loss on early extinguishment of long-term borrowings, net						(42,000)
6.625% Senior Notes Due 2021 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount			$ 225,000,000
Interest rate			6.625%		6.625%		6.625%
Due date			Jul. 15, 2021		Jul. 01, 2021		Jul. 01, 2021
Aggregate principal amount of senior notes pricing			99.50%
Debt issuance costs paid			$ 5,039,000
Interest expense related to the Exchangeable Notes					$ 3,943,000	3,930,000
Original debt issue discount			$ 1,125,000
Debt Instrument, Repurchased Face Amount								$ 500,000		$ 250,000
Loss on early extinguishment of long-term borrowings, net					$ 21,000			28,000
6.625% Senior Notes Due 2021 [Member] | Senior Notes [Member] | 2019 [Member]
Debt Instrument [Line Items]
Redemption price plus accrued, unpaid interest and special interest to the date of redemption					100.00%
5.0% Exchangeable Senior Notes due March 2021 [Member] | Exchangeable Senior Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount	$ 86,250,000	$ 86,250,000
Interest rate	5.00%	5.00%			5.00%		5.00%
Due date		Mar. 01, 2021			Mar. 01, 2021		Mar. 01, 2021
Aggregate principal amount of senior notes pricing	5.00%
Convertible notes principal amount denomination value					$ 1,000,000
Conversion of converted notes, shares issued					121.1387
Exchange price					$ 8.26
Redemption price plus accrued, unpaid interest and special interest to the date of redemption					100.00%
Minimum required percentage of holders to declare repurchase of notes					25.00%
Percentage of notes to repurchased on declaration by minimum required holders					100.00%
Debt issuance costs paid		$ 5,902,000			$ 5,902,000
Interest expense related to the Exchangeable Notes					$ 1,416,000	$ 1,408,000
Debt Instrument, Repurchased Face Amount				$ 920,000				1,590,000
Loss on early extinguishment of long-term borrowings, net				$ 63,000				$ 234,000

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Derivative Financial Instruments - Impact of Derivative Instruments on Consolidated Statement of Operations (Detail) - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)	$ (5,004)	$ (499)
Other income, net [Member]
Derivative [Line Items]
Amount of Loss Recognized in Statement of Operations on Derivatives (Ineffective Portion)	117	(56)
Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)	(58)	(187)
Zero Cost Collars [Member]
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)	(5,004)	34
Zero Cost Collars [Member] | Other income, net [Member]
Derivative [Line Items]
Amount of Loss Recognized in Statement of Operations on Derivatives (Ineffective Portion)	117
Zero Cost Collars [Member] | Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)	$ (58)
Forward [Member]
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivatives (Effective Portion)		(533)
Forward [Member] | Other income, net [Member]
Derivative [Line Items]
Amount of Loss Recognized in Statement of Operations on Derivatives (Ineffective Portion)		(56)
Forward [Member] | Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)		(89)
Forwards - excluded time value [Member] | Net Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Statement of Operations (Effective Portion)		$ (98)

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

18. Commitments and Contingencies

Long-term Purchase Agreements and Advances to Suppliers

The Company purchases raw materials from a variety of vendors. During the normal course of business, in order to manage manufacturing lead times and help assure adequacy supply, the Company from time to time may enter into multi-year purchase agreements, which specify future quantities and pricing of materials to be supplied by the vendors. The Company reviews the terms of the long-term supply agreements and assesses the need for any accrual for estimated losses, such as lower of cost or net realizable value that will not be recovered by future sales prices. No such accrual was required as of March 31, 2020 and December 31, 2019, respectively.

The Company, from time to time, may make advances in form of prepayments or deposits to suppliers to procure materials to meet its planned production. The Company recorded advances of $5,118 thousand and $6,593 thousand as other current assets as of March 31, 2020 and December 31, 2019, respectively. 

COVID-19 Pandemic

In December 2019, a strain of coronavirus causing a disease known as COVID-19 surfaced in Wuhan, China, resulting in significant disruptions among Chinese manufacturing and other facilities and travel throughout China. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic, which continues to spread rapidly in the U.S. and other countries throughout the world. Governmental authorities throughout the world have implemented numerous containment measures, including travel bans and restrictions, quarantines, shelter-in-place orders, and business restrictions and shutdowns, resulting in rapidly changing market and economic conditions.

While the Company experienced some minor disruption in its Power business from assembly and test subcontractors located in China in the first quarter of 2020 as a result of COVID-19, to date its external Display business contractors and sub-contractors have not been materially impacted by the outbreak. Nevertheless, while the future impact on the Company’s business from the COVID-19 pandemic is currently difficult to assess, the significant global macro-economic disruption will adversely affect customer demand for some of its products in the near term. The Company is, however, unable to accurately predict the full impact COVID-19 will have on its future results of operations due to numerous uncertainties, including the severity of the disease, the duration of the outbreak, a potential future recurrence of the outbreak, further containment actions that may be taken by governmental authorities, the impact to the businesses of its customers and suppliers, and other factors.

The Company continues to closely monitor and evaluate the nature and scope of the impact on COVID-19 to its business, consolidated results of operations, and financial condition, and may take further actions altering its business operations and managing its costs and liquidity that the Company deems necessary or appropriate to respond to this fast moving and uncertain global health crisis and the resulting global economic consequences.

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Income Taxes

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

14. Income Taxes

The Company and its subsidiaries file income tax returns in Korea, Japan, Taiwan, the US and in various other jurisdictions. The Company is subject to income- or non-income tax examinations by tax authorities of these jurisdictions for all open tax years.

A loss from continuing operations before income tax expense for the three months ended March 31, 2020 and 2019 was $29,775 thousand and $20,759 thousand, respectively. For the three months ended March 31, 2020 and 2019, the Company recorded an income tax expense on continuing of $1,303 thousand and $796 thousand, respectively, primarily attributable to interest on intercompany loan balances. Income tax expense was recorded for the Company’s Korean subsidiary based on the estimated taxable income for the respective periods, combined with its ability to utilize net operating loss carryforwards up to 60% in 2019 and 2020.

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Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2020

Property, Plant and Equipment [Abstract]

Summary of Property, Plant and Equipment

Property, plant and equipment as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020			December 31, 2019
Buildings and related structures	$	21,309		$	22,502
Machinery and equipment		85,213			89,453
Finance lease right-of-use assets		306			323
Others		20,863			22,242
		127,691			134,520
Less: accumulated depreciation		(73,987	)		(75,704	)
Land		13,497			14,252
Property, plant and equipment, net	$	67,201		$	73,068

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Fair Value Measurements

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

10. Fair Value Measurements

Fair Value of Financial Instruments

As of March 31, 2020, the following table represents the Company’s liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value March 31, 2020		Fair Value Measurement March 31, 2020		Quoted Prices in Active Markets for Identical liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities (other current liabilities)	$	3,500	$	3,500		—	$	3,500		—

As of December 31, 2019, the following table represents the Company’s assets measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value December 31, 2019		Fair Value Measurement December 31, 2019		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets (other current assets)	$	1,456	$	1,456		—	$	1,456		—

Items not reflected in the table above include cash equivalents, accounts receivable, other receivables, accounts payable, and other accounts payable, fair value of which approximate carrying values due to the short-term nature of these instruments. The fair value of assets and liabilities whose carrying value approximates fair value is determined using Level 2 inputs.

Fair Value of Borrowings

	March 31, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(In thousands of US dollars)
Borrowings:
5.0% Exchangeable Senior Notes due March 2021 (Level 2)	$	82,328	$	94,479	$	81,959	$	116,078
6.625% Senior Notes due July 2021 (Level 2)	$	223,012	$	210,795	$	222,784	$	224,250

On January 17, 2017, the Company’s wholly-owned subsidiary, MagnaChip Semiconductor S.A., closed an offering (the “Exchangeable Notes Offering”) of 5.0% Exchangeable Senior Notes due March 1, 2021 (the “Exchangeable Notes”), of $86,250 thousand, which represents the principal amount, excluding $5,902 thousand of debt issuance costs. In December 2018 and February 2019, MagnaChip Semiconductor S.A. repurchased a principal amount equal to $1,590 thousand and $920 thousand, respectively, of the Exchangeable Notes in the open market. The Company estimates the fair value of the Exchangeable Notes using the market approach, which utilizes quoted market prices that fall under Level 2. For further description of the Exchangeable Notes, see Note 11, “Borrowings.”

On July 18, 2013, the Company issued 6.625% Senior Notes due July 15, 2021 (the “2021 Notes”) of $225,000 thousand, which represents the principal amount, excluding $1,125 thousand of original issue discount and $5,039 thousand of debt issuance costs. In December 2018 and January 2019, the Company repurchased a principal amount equal to $500 thousand and $250 thousand, respectively, of the 2021 Notes in the open market. The Company estimates the fair value of the 2021 Notes using the market approach, which utilizes quoted market prices that fall under Level 2. For further description of the 2021 Notes, see Note 11, “Borrowings.”

Fair Values Measured on a Non-recurring Basis

The Company’s non-financial assets, such as property, plant and equipment, and intangible assets are recorded at fair value upon acquisition and are remeasured at fair value only if an impairment charge is recognized. As of March 31, 2020 and 2019, the Company did not have any assets or liabilities measured at fair value on a non-recurring basis.

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Intangible Assets

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

6. Intangible Assets

Intangible assets as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020
	Gross amount		Accumulated amortization			Net amount
Technology	$	6,226	$	(6,226	)	$	—
Customer relationships		9,641		(9,641	)		—
Intellectual property assets		8,314		(5,731	)		2,583
Intangible assets, net	$	24,181	$	(21,598	)	$	2,583

	December 31, 2019
	Gross amount		Accumulated amortization			Net amount
Technology	$	6,575	$	(6,575	)	$	—
Customer relationships		10,180		(10,180	)		—
Intellectual property assets		8,637		(5,868	)		2,769
Intangible assets, net	$	25,392	$	(22,623	)	$	2,769

Aggregate amortization expenses for intangible assets totaled $161 thousand and $139 thousand for the three months ended March 31, 2020 and 2019, respectively.

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Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2020

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Loss

Accumulated other comprehensive income (loss) consists of the following as of March 31, 2020 and December 31, 2019, respectively (in thousands):

	March 31, 2020			December 31, 2019
Foreign currency translation adjustments	$	18,046		$	(4,205	)
Derivative adjustments		(3,401	)		1,545
Total	$	14,645		$	(2,660	)

Changes in Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2020 and 2019 are as follows (in thousands):

Three Months Ended March 31, 2020	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(4,205	)	$	1,545		$	(2,660	)
Other comprehensive income (loss) before reclassifications		22,251			(5,004	)		17,247
Amounts reclassified from accumulated other comprehensive loss		—			58			58
Net current-period other comprehensive income (loss)		22,251			(4,946	)		17,305
Ending balance	$	18,046		$	(3,401	)	$	14,645

Three Months Ended March 31, 2019	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(20,061	)	$	(49	)	$	(20,110	)
Other comprehensive income (loss) before reclassifications		7,304			(499	)		6,805
Amounts reclassified from accumulated other comprehensive loss		—			187			187
Net current-period other comprehensive income (loss)		7,304			(312	)		6,992
Ending balance	$	(12,757	)	$	(361	)	$	(13,118	)

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Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

Intangible assets as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020
	Gross amount		Accumulated amortization			Net amount
Technology	$	6,226	$	(6,226	)	$	—
Customer relationships		9,641		(9,641	)		—
Intellectual property assets		8,314		(5,731	)		2,583
Intangible assets, net	$	24,181	$	(21,598	)	$	2,583

	December 31, 2019
	Gross amount		Accumulated amortization			Net amount
Technology	$	6,575	$	(6,575	)	$	—
Customer relationships		10,180		(10,180	)		—
Intellectual property assets		8,637		(5,868	)		2,769
Intangible assets, net	$	25,392	$	(22,623	)	$	2,769

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

As of March 31, 2020, the following table represents the Company’s liabilities measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value March 31, 2020		Fair Value Measurement March 31, 2020		Quoted Prices in Active Markets for Identical liability (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Liabilities:
Derivative liabilities (other current liabilities)	$	3,500	$	3,500		—	$	3,500		—

As of December 31, 2019, the following table represents the Company’s assets measured at fair value on a recurring basis and the basis for that measurement (in thousands):

	Carrying Value December 31, 2019		Fair Value Measurement December 31, 2019		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Derivative assets (other current assets)	$	1,456	$	1,456		—	$	1,456		—

Schedule of Fair Value of Long-term Borrowings

Fair Value of Borrowings

	March 31, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(In thousands of US dollars)
Borrowings:
5.0% Exchangeable Senior Notes due March 2021 (Level 2)	$	82,328	$	94,479	$	81,959	$	116,078
6.625% Senior Notes due July 2021 (Level 2)	$	223,012	$	210,795	$	222,784	$	224,250

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Leases - Other lease information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 468	$ 525
Operating cash flows from finance leases	5	6
Financing cash flows from finance leases	$ 14	$ 14
Weighted average remaining lease term
Operating leases	1 year		1 year 1 month 6 days
Finance leases	3 years 9 months 18 days		4 years
Weighted average discount rate
Operating leases	7.35%		7.19%
Finance leases	7.75%		7.75%

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Discontinued Operations and Assets Held for Sale

3 Months Ended

Mar. 31, 2020

Discontinued Operations and Assets Held for Sale [Abstract]

Discontinued Operations and Assets Held for Sale

2. Discontinued Operations and Assets Held for Sale

On March 30, 2020, the Company entered into the BTA for the sale of its Foundry Services Group business and Fab 4. Following the consummation of the sale, and for up to three years, the Company is expected to provide the Transitional Fab 3 Foundry Services. For the periods prior to the closing of the sale, revenue from providing the Transitional Fab 3 Foundry Services to the Foundry Services Group is recorded at cost on both of the continuing and discontinued businesses. The sale is expected to close within approximately four to six months from the date of the BTA, subject to customary closing conditions.

The following table summarizes the results from discontinued operations, net of tax, for the three months ended March 31, 2020 and 2019.

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Revenues:
Net sales – Foundry Services Group	$	86,279		$	57,116
Net sales – transitional Fab 3 foundry services		(9,737	)		(7,003	)
Total revenues		76,542			50,113
Cost of sales:
Cost of sales – Foundry Services Group		65,583			53,438
Cost of sales – transitional Fab 3 foundry services		(9,737	)		(7,003	)
Total cost of sales		55,846			46,435
Gross profit		20,696			3,678
Operating expenses:
Selling, general and administrative expenses		5,644			6,034
Research and development expenses		7,403			7,974
Restructuring and other charges		2,115			2,894
Total operating expenses		15,162			16,902
Operating income (loss) from discontinued operations		5,534			(13,224	)
Foreign currency gain, net		2,097			613
Other income		107			86
Income (loss) from discontinued operations before income tax expense		7,738			(12,525	)
Income tax expense		409			45
Income (loss) from discontinued operations, net of tax	$	7,329		$	(12,570	)

For the three months ended March 31, 2020 and 2019, the Company recorded $2,115 thousand and $743 thousand, respectively, in professional fees incurred in connection with the Foundry Services Group business and Fab 4, and recorded such costs as restructuring and other charges in the above. For the three months ended March 31, 2019, the Company also recorded in the same line a $2,151 thousand restructuring-related charge to its fab employees.

The following table provides a reconciliation of the aggregate carrying amounts of major classes of assets and liabilities relating to the Foundry Services Group business and Fab 4, which are included in assets and liabilities held for sale in the accompanying consolidated balance sheets for each of the periods presented:

	March 31, 2020		December 31, 2019
	(In thousands of US dollars)
Assets
Current assets
Accounts receivable, net	$	40,735	$	48,194
Unbilled accounts receivable, net		9,374		16,463
Inventories, net		34,968		31,863
Other current assets		2,891		3,301
Other assets of the disposal group classified as held for sale		1,461		—
Total current assets held for sale	$	89,429	$	99,821
Property, plant and equipment, net		99,604		109,506
Intangible assets, net		1,202		1,245
Other non-current assets		11,384		12,683
Total assets held for sale	$	201,619	$	223,255
Liabilities
Current liabilities
Accounts payable	$	20,462	$	20,503
Other current liabilities		14,773		16,537
Total current liabilities held for sale	$	35,235	$	37,040
Accrued severance benefits, net		93,121		95,547
Other non-current liabilities		13,657		15,334
Total liabilities held for sale	$	142,013	$	147,921

As of March 31, 2020, all assets and liabilities held for sale are classified as current on the consolidated balance sheets based on the anticipated date of disposal of the Foundry Services Group business and Fab 4.

The following table provides supplemental cash flows information related to discontinued operations:

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Significant non-cash operating activities:
Depreciation and amortization	$	5,365		$	5,752
Provision for severance benefits		3,052			1,803
Stock-based compensation		123			106
Investing activities:
Capital expenditures	$	(1,479	)	$	(4,469	)

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Intangible Assets - Summary of Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible asset, Gross amount	$ 24,181	$ 25,392
Accumulated amortization	(21,598)	(22,623)
Intangible asset, Net amount	2,583	2,769
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, Gross amount	6,226	6,575
Accumulated amortization	(6,226)	(6,575)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, Gross amount	9,641	10,180
Accumulated amortization	(9,641)	(10,180)
Intellectual Property Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset, Gross amount	8,314	8,637
Accumulated amortization	(5,731)	(5,868)
Intangible asset, Net amount	$ 2,583	$ 2,769

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (23,749)	$ (34,125)
Other comprehensive income (loss)
Foreign currency translation adjustments	22,251	7,304
Derivative adjustments
Fair valuation of derivatives	(5,004)	(499)
Reclassification adjustment for loss on derivatives included in net loss	58	187
Total other comprehensive income	17,305	6,992
Total comprehensive loss	$ (6,444)	$ (27,133)

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Derivative Financial Instruments - Details of Derivative Contracts (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Zero Cost Collar One [Member]
Derivative [Line Items]
Date of transaction	Aug. 13, 2019	Aug. 13, 2019
Type of derivative	Zero cost collar	Zero cost collar
Total notional amount	$ 30,000	$ 60,000
Month of settlement, start	2020-04	2020-01
Month of settlement, end	2020-06	2020-06
Zero Cost Collar Two [Member]
Derivative [Line Items]
Date of transaction	Sep. 27, 2019	Sep. 27, 2019
Type of derivative	Zero cost collar	Zero cost collar
Total notional amount	$ 21,000	$ 42,000
Month of settlement, start	2020-04	2020-01
Month of settlement, end	2020-06	2020-06
Zero Cost Collar Three [Member]
Derivative [Line Items]
Date of transaction	Dec. 04, 2019	Dec. 04, 2019
Type of derivative	Zero cost collar	Zero cost collar
Total notional amount	$ 30,000	$ 30,000
Month of settlement, start	2020-07	2020-07
Month of settlement, end	2020-12	2020-12
Zero Cost Collar Four [Member]
Derivative [Line Items]
Date of transaction	Jan. 31, 2020
Type of derivative	Zero cost collar
Total notional amount	$ 30,000
Month of settlement, start	2020-07
Month of settlement, end	2020-12
Zero Cost Collar Five [Member]
Derivative [Line Items]
Date of transaction	Feb. 03, 2020
Type of derivative	Zero cost collar
Total notional amount	$ 18,000
Month of settlement, start	2020-07
Month of settlement, end	2020-12
Zero Cost Collar Six [Member]
Derivative [Line Items]
Date of transaction	Feb. 21, 2020
Total notional amount	$ 30,000
Month of settlement, start	2020-07
Month of settlement, end	2020-12

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Cover Page - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 2020
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Registrant Name	MAGNACHIP SEMICONDUCTOR Corp
Entity Central Index Key	0001325702
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Address, State or Province	DE
Entity Shell Company	false
Title of 12(b) Security	Common Stock
Trading Symbol	MX
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		35,065,248

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Loss Per Share - Schedule of Computation of Basic and Diluted Loss Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic and diluted loss per share
Loss from continuing operations	$ (31,078)	$ (21,555)
Income (loss) from discontinued operations, net of tax	7,329	(12,570)
Net loss	$ (23,749)	$ (34,125)
Weighted average number of shares – basic and diluted	34,893,157	34,194,878
Basic and diluted earnings (loss) per common share
Continuing operations	$ (0.89)	$ (0.63)
Discontinued operations	0.21	(0.37)
Total	$ (0.68)	$ (1.00)

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Accrued Severance Benefits - Future Benefits Payments to Employees (Detail) $ in Thousands	Mar. 31, 2020 USD ($)
Retirement Benefits [Abstract]
Remainder of 2020	$ 369
2021	626
2022	823
2023	580
2024	788
2025	2,201
2026 – 2030	$ 19,439

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Geographic and Other Information - Schedule of Operating Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total revenues	$ 120,473	$ 107,267
Total gross profit	29,130	19,023
Standard Products Group [Member]
Segment Reporting Information [Line Items]
Total revenues	110,736	100,264
Total gross profit	29,130	19,023
Fab Three Foundry Services [Member]
Segment Reporting Information [Line Items]
Total revenues	9,737	7,003
Total gross profit
Operating Segments [Member] | Standard Products Group [Member]
Segment Reporting Information [Line Items]
Total revenues	110,736	100,264
Operating Segments [Member] | Standard Products Group [Member] | Display Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues	77,593	58,230
Operating Segments [Member] | Standard Products Group [Member] | Power Solutions [Member]
Segment Reporting Information [Line Items]
Total revenues	$ 33,143	$ 42,034

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

9. Derivative Financial Instruments

The Company’s Korean subsidiary from time to time has entered into zero cost collar and forward contracts to hedge the risk of changes in the functional-currency-equivalent cash flows attributable to currency rate changes on US dollar denominated revenues.

Details of derivative contracts as of March 31, 2020 are as follows (in thousands):

Date of transaction	Type of derivative		Total notional amount		Month of settlement
August 13, 2019		Zero cost collar	$	30,000	April 2020 to June 2020
September 27, 2019		Zero cost collar	$	21,000	April 2020 to June 2020
December 4, 2019		Zero cost collar	$	30,000	July 2020 to December 2020
January 31, 2020		Zero cost collar	$	30,000	July 2020 to December 2020
February 3, 2020		Zero cost collar	$	18,000	July 2020 to December 2020
February 21, 2020		Zero cost collar	$	30,000	July 2020 to December 2020

Details of derivative contracts as of December 31, 2019 are as follows (in thousands):

Date of transaction	Type of derivative		Total notional amount		Month of settlement
August 13, 2019		Zero cost collar	$	60,000	January 2020 to June 2020
September 27, 2019		Zero cost collar	$	42,000	January 2020 to June 2020
December 4, 2019		Zero cost collar	$	30,000	July 2020 to December 2020

The zero cost collar contracts qualify as cash flow hedges under ASC 815, “Derivatives and Hedging,” since at both the inception of the contracts and on an ongoing basis, the hedging relationship was and is expected to be highly effective in achieving offsetting cash flows attributable to the hedged risk during the term of the contracts.

The fair values of the Company’s outstanding zero cost collar contracts recorded as assets and liabilities as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

Derivatives designated as hedging instruments:		March 31, 2020		December 31, 2019
Asset Derivatives:
Zero cost collars	Other current assets	$	—	$	1,456
Liability Derivatives:
Zero cost collars	Other current liabilities	$	3,500	$	—

Offsetting of derivative liabilities as of March 31, 2020 is as follows (in thousands):

As of March 31, 2020	Gross amounts of recognized liabilities		Gross amounts offset in the balance sheets		Net amounts of liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
							Financial instruments		Cash collateral pledged
Liability Derivatives:
Zero cost collars	$	3,500	$	—	$	3,500	$	—	$	(2,720	)	$	780

Offsetting of derivative assets as of December 31, 2019 is as follows (in thousands):

As of December 31, 2019	Gross amounts of recognized assets		Gross amounts offset in the balance sheets		Net amounts of assets presented in the balance sheets		Gross amounts not offset in the balance sheets				Net amount
							Financial instruments		Cash collateral pledged
Asset Derivatives:
Zero cost collars	$	1,456	$	—	$	1,456	$	—	$	1,070	$	2,526

For derivative instruments that are designated and qualify as cash flow hedges, gains or losses on the derivative aside from components excluded from the assessment of effectiveness are reported as a component of accumulated other comprehensive income (“AOCI”) and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. Gains and losses on the derivative, representing hedge components excluded from the assessment of effectiveness, are recognized in current earnings.

The following table summarizes the impact of derivative instruments on the consolidated statements of operations for the three months ended March 31, 2020 and 2019 (in thousands):

Derivatives in ASC 815 Cash Flow Hedging Relationships	Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)						Location/Amount of Loss Reclassified from AOCI Into Statement of Operations (Effective Portion)								Location/Amount of Gain (Loss) Recognized in Statement of Operations on Derivatives (Ineffective Portion)
	Three Months Ended March 31,								Three Months Ended March 31,								Three Months Ended March 31,
	2020			2019					2020			2019					2020		2019
Zero cost collars	$	(5,004	)	$	34			Net sales	$	(58	)	$	—			Other income, net	$	117	$	—
Forwards	$	—		$	(533	)		Net sales	$	—		$	(89	)		Other income, net	$	—	$	(56	)
Forwards—excluded time value								Net sales	$	—		$	(98	)
	$	(5,004	)	$	(499	)			$	(58	)	$	(187	)			$	117	$	(56	)

As of March 31, 2020, the amount expected to be reclassified from accumulated other comprehensive income into loss within the next twelve months is $3,401 thousand.

The Company set aside $10,550 thousand and $8,750 thousand of cash deposits to the counterparties, Nomura Financial Investment (Korea) Co., Ltd. (“NFIK”) and Deutsche Bank AG, Seoul Branch (“DB”), as required for the zero cost collar contracts outstanding as of March 31, 2020 and December 31, 2019, respectively. These cash deposits are recorded as hedge collateral on the consolidated balance sheets.

The Company is required to deposit additional cash collateral with NFIK and DB for any exposure in excess of $500 thousand, and $2,720 thousand and $1,070 thousand of additional cash collateral were required and recorded as hedge collateral on the consolidated balance sheets as of March 31, 2020 and December 31, 2019, respectively.

These cost collar contracts may be terminated by the counterparty in a number of circumstances, including if the Company’s borrowing rating falls below B-/B3 or if the Company’s total cash and cash equivalents is less than $30,000 thousand at the end of a fiscal quarter, unless a waiver is obtained from the counterparty.

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Property, Plant and Equipment

3 Months Ended

Mar. 31, 2020

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

5. Property, Plant and Equipment

Property, plant and equipment as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020			December 31, 2019
Buildings and related structures	$	21,309		$	22,502
Machinery and equipment		85,213			89,453
Finance lease right-of-use assets		306			323
Others		20,863			22,242
		127,691			134,520
Less: accumulated depreciation		(73,987	)		(75,704	)
Land		13,497			14,252
Property, plant and equipment, net	$	67,201		$	73,068

Aggregate depreciation expenses totaled $2,409 thousand and $2,412 thousand for the three months ended March 31, 2020 and 2019, respectively.

Concurrent with the execution of the BTA, the Company executed a factory (kun) mortgage agreement under which the real property owned by the Company in respect of the Fab 3 fabrication facility located in Gumi, Korea and other material assets located in, attached to or forming part of such facility were pledged as collateral for purposes of securing the payment of its termination fee of $34,470 thousand under the BTA. The Company has a right to replace the factory (kun) mortgage at any time with a deposit of  $34,470 thousand cash into escrow.

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Leases (Tables)

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Supplemental Balance Sheet Information Related To Leases [Table Text Block]

Supplemental balance sheets information related to leases as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

Leases	Classification	March 31, 2020		December 31, 2019
Assets
Operating lease	Operating lease right-of-use assets	$	1,413	$	1,876
Finance lease	Property, plant and equipment, net		229		258
Total lease assets		$	1,642	$	2,134
Liabilities
Current
Operating	Operating lease liabilities	$	1,301	$	1,625
Finance	Other current liabilities		58		60
Non-current
Operating	Other non-current liabilities		112		251
Finance	Other non-current liabilities		182		208
Total lease liabilities		$	1,653	$	2,144

Lease, Cost [Table Text Block]

The components of lease cost included in the Company’s consolidated statements of operations, are as follows (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Operating lease cost	$	468	$	525
Finance lease cost
Amortization of right-of-use assets		16		17
Interest on lease liabilities		5		6
Total lease cost	$	489	$	548

Other Lease Information [Table Text Block]

The following table presents the weighted average remaining lease term and discount rate:

	March 31, 2020			December 31, 2019
Weighted average remaining lease term
Operating leases		1.0 years			1.1 years
Finance leases		3.8 years			4.0 years
Weighted average discount rate
Operating leases		7.35	%		7.19	%
Finance leases		7.75	%		7.75	%

Other lease information is as follows (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	468	$	525
Operating cash flows from finance leases		5		6
Financing cash flows from finance leases		14		14

Schedule Of Future Lease Payments [Table Text Block]

The aggregate future lease payments for operating and finance leases as of March 31, 2020 are as follows (in thousands):

	Operating Leases			Finance Leases
2020	$	1,192		$	55
2021		254			74
2022		21			74
2023		1			74
Thereafter		—			—
Total future lease payments		1,468			277
Less: Imputed interest		(55	)		(37	)
Present value of future payments	$	1,413		$	240

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Borrowings (Tables)

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Components of Long-term Borrowings

Borrowings as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

	March 31, 2020			December 31, 2019
5.0% Exchangeable Senior Notes due March 2021	$	83,740		$	83,740
6.625% Senior Notes due July 2021		224,250			224,250
Less: unamortized discount and debt issuance costs		(2,650	)		(3,247	)
Total borrowings, net		305,340			304,743
Less: current portion of long-term borrowings, net		(82,328	)		—
Long-term borrowings, net	$	223,012		$	304,743

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Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Loss Per Common Share

The following table illustrates the computation of basic and diluted loss per common share for the three months ended March 31, 2020 and 2019:

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars, except share data)
Basic and diluted loss per share
Loss from continuing operations	$	(31,078	)	$	(21,555	)
Income (loss) from discontinued operations, net of tax		7,329			(12,570	)
Net loss	$	(23,749	)	$	(34,125	)
Weighted average number of shares – basic and diluted		34,893,157			34,194,878
Basic and diluted earnings (loss) per common share
Continuing operations	$	(0.89	)	$	(0.63	)
Discontinued operations		0.21			(0.37	)
Total	$	(0.68	)	$	(1.00	)

Schedule of Antidilutive Securities Excluded from the Computation of Loss Per Common Share

The following outstanding instruments were excluded from the computation of diluted loss per share, as they have an anti-dilutive effect on the calculation:

	Three Months Ended
	March 31, 2020		March 31, 2019
Options		2,163,845		2,632,300
Restricted Stock Units		729,939		508,943

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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net sales	$ 120,473	$ 107,267
Cost of sales	91,343	88,244
Gross profit	29,130	19,023
Operating expenses
Selling, general and administrative expenses	12,102	12,036
Research and development expenses	10,509	12,044
Other charges	554
Total operating expenses	23,165	24,080
Operating income (loss)	5,965	(5,057)
Interest expense	(5,607)	(5,637)
Foreign currency loss, net	(30,971)	(10,610)
Loss on early extinguishment of long-term borrowings, net		(42)
Other income, net	838	587
Loss from continuing operations before income tax expense	(29,775)	(20,759)
Income tax expense	1,303	796
Loss from continuing operations	(31,078)	(21,555)
Income (loss) from discontinued operations, net of tax	7,329	(12,570)
Net loss	$ (23,749)	$ (34,125)
Basic and diluted earnings (loss) per common share –
Continuing operations	$ (0.89)	$ (0.63)
Discontinued operations	0.21	(0.37)
Total	$ (0.68)	$ (1.00)
Weighted average number of shares – basic and diluted	34,893,157	34,194,878
Standard Products Group [Member]
Net sales	$ 110,736	$ 100,264
Cost of sales	81,606	81,241
Gross profit	29,130	19,023
Fab Three Foundry Services [Member]
Net sales	9,737	7,003
Cost of sales	9,737	$ 7,003
Gross profit

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Derivative Financial Instruments - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Estimated amount reclassified from accumulated other comprehensive income into income, period	12 months
Estimated amount reclassified from accumulated other comprehensive income into income	$ 3,401
Zero Cost Collar and Forward Contracts [Member] | Nomura Financial Investment (Korea) Co., Ltd. [Member]
Derivative [Line Items]
Deposit with counterparty	10,550	$ 8,750
Threshold amount of cash collateral	500
Cash collateral for credit exposure in derivatives	2,720	$ 1,070
Termination provisions for cash and cash equivalents	$ 30,000
Debt Instrument, Credit Rating	B-/B3

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Leases - Components of lease cost (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating lease cost	$ 468	$ 525
Finance lease cost [Abstract]
Amortization of right-of-use assets	16	17
Interest on lease liabilities	5	6
Total lease cost	$ 489	$ 548

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Business, Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Business, Basis of Presentation and Significant Accounting Policies

1. Business, Basis of Presentation and Significant Accounting Policies

Business

MagnaChip Semiconductor Corporation (together with its subsidiaries, the “Company”) is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, Internet of Things (“IoT”) applications, consumer, industrial and automotive applications. The Company provides technology platforms for analog, mixed signal, power, high voltage, non-volatile memory and Radio Frequency (“RF”) applications.

On March 30, 2020, the Company entered into a definitive Business Transfer Agreement (the “BTA”) for the sale of its Foundry Services Group business and its fabrication facility located in Cheongju (“Fab 4”), the larger of the Company’s two 8-inch manufacturing facilities, to Magnus Semiconductor, LLC, a Korean limited liability company, or one of its wholly owned subsidiaries (the “Buyer”) for a purchase price equal to the KRW equivalent of $344.7 million in cash, subject to working capital adjustments set forth in the BTA. The Buyer is a special purpose company formed by Alchemist Capital Partners Korea Co., Ltd. and Credian Partners, Inc. This planned divestiture of the Foundry Services Group business and Fab 4 will allow the Company to strategically shift its operational focus to its standard products business. The Foundry Services Group was historically a reportable segment. As a result of the entry into the BTA, the results of the Foundry Services Group were classified as discontinued operations in the Company’s consolidated statements of operations and excluded from both continuing operations and segment results for all periods presented. Accordingly, commencing with the first quarter of 2020, the Company has one reportable segment: its standard products business, together with transitional foundry services associated with its fabrication facility located in Gumi, Korea, known as “Fab 3,” that it expects to perform for the Buyer for a period of up to three years (the “Transitional Fab 3 Foundry Services”). The Company’s standard products business includes its Display Solutions and Power Solutions business lines. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and mobile, automotive applications and home appliances. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer and industrial applications.

Basis of Presentation

The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”). These interim consolidated financial statements include normal recurring adjustments and the elimination of all intercompany accounts and transactions which are, in the opinion of management, necessary to provide a fair statement of the Company’s financial condition and results of operations for the periods presented. These interim consolidated financial statements are presented in accordance with Accounting Standards Codification 270, “Interim Reporting” and, accordingly, do not include all of the information and note disclosures required by US GAAP for complete financial statements, except for the changes below. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results to be expected for a full year or for any other periods.

The Company has reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations to reflect the anticipated divestiture of its Foundry Services Group business and Fab 4. The assets to be acquired and liabilities to be transferred to the Buyer, as specified in the BTA, have been classified as assets and liabilities held for sale in the Company’s consolidated balance sheets, subject to adjustments set forth in the BTA. See Note 2 “Discontinued Operations and Assets Held for Sale” for additional information. The consolidated statements of cash flows have not been adjusted to separately disclose cash flows related to discontinued operations, but the material items in the operating and investing activities of cash flows relating to discontinued operations are disclosed in Note 2. Unless otherwise stated, information in these notes to consolidated financial statements relates to the Company’s continuing operations and excludes the discontinued operations.

There have been no material changes to the Company’s significant accounting policies as of and for the three months ended March 31, 2020, except for those related to discontinued operations and assets held for sale as described below, as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

Discontinued Operations and Assets Held for Sale

The Company reports the results of operations of a business as discontinued operations if a disposal represents a strategic shift that has or will have a major effect on the Company’s operations and financial results when the business is sold and classified as held for sale, in accordance with the criteria of Accounting Standard Codification (“ASC”) 205, “Presentation of Financial Statements” (“ASC 205”) and ASC 360, “Property, Plant and Equipment” (“ASC 360”). Assets and liabilities of a business classified as held for sale are recorded at the lower of its carrying amount or estimated fair value less costs to sell. If the carrying amount of the business exceeds its estimated fair value less costs to sell, a loss is recognized. Assets and liabilities related to discontinued operations classified as held for sale are segregated in the current and prior balance sheets in the period in which the business is classified as held for sale. The results of discontinued operations are reported in “Income (loss) from discontinued operations, net of tax” in the accompanying consolidated statements of operations for the current and prior periods commencing in the period in which the business meets the criteria.

Recent Accounting Pronouncements Not Yet Adopted

In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ASU 2019-12”). ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and improves consistent application of and simplifies GAAP for other areas of Topic 740 by clarifying and amending existing guidance. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company does not expect the adoption of ASU 2019-12 to have a material effect on the Company’s consolidated financial statements.

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued Accounting Standards Update No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 amends the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables. In April 2019, the FASB issued Accounting Standards Update No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments” (“ASU 2019-04”), and in November 2019, the FASB issued Accounting Standards Update No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses” (“ASU 2019-11”) to clarify and address certain items related to the amendments in ASU 2016-13. In February 2020, the FASB issued Accounting Standards Update No. 2020-02, “Financial Instruments—Credit Losses (Topic 326)” (“ASU 2020-02”), which incorporates SEC SAB 119 (updated from SAB 102) into the ASC by aligning SEC recommended policies and procedures with ASC 326.The Company adopted ASU 2016-13, ASU 2019-04, ASU 2019-11 and ASU 2020-02 as of January 1, 2020, and the adoption did not have a material impact on the Company’s consolidated financial statements.

In August 2018, the FASB issued Accounting Standards Update No. 2018-13 “Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”). ASU 2018-13 amends existing fair value measurement disclosure requirements by adding, changing, or removing certain disclosures. The Company adopted ASU 2018-13 as of January 1, 2020, and the adoption of ASU 2018-13 did not impact the Company’s consolidated financial statements.

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Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense for intangible assets	$ 161	$ 139

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Loss Per Share - Schedule of Antidilutive Securities Excluded from the Computation of Loss Per Common Share (Detail) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding units and warrants excluded from computation of diluted loss per share/unit	10,144,155	10,182,542
Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding units and warrants excluded from computation of diluted loss per share/unit	2,163,845	2,632,300
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding units and warrants excluded from computation of diluted loss per share/unit	729,939	508,943

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Foreign Currency Loss, Net - Additional Information (Detail) $ in Thousands	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Foreign Currency Transaction [Abstract]
Exchange rates using first base rate	1,222,600	1,157,800
Intercompany loan balances	$ 684,021	$ 686,485

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Geographic and Other Information - Net Sales by Region, Based on Location of Products are Billed (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 120,473	$ 107,267
Standard products business [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	110,736	100,264
Standard products business [Member] | Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	30,817	34,646
Standard products business [Member] | Asia Pacific (Other Than Korea) [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	77,542	63,747
Standard products business [Member] | United States. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	709	462
Standard products business [Member] | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	971	1,133
Standard products business [Member] | Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 697	$ 276

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Discontinued Operations and Assets Held for Sale - Schedule Of Results From Discontinued Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Expenses [Abstract]
Selling, general and administrative expenses	$ 12,102	$ 12,036
Research and development expenses	10,509	12,044
Total operating expenses	23,165	24,080
Foreign currency gain, net	(30,971)	(10,610)
Income (loss) from discontinued operations, net of tax	7,329	(12,570)
Discontinued Operations [Member]
Revenues:
Total revenues	76,542	50,113
Cost of sales:
Total cost of sales	55,846	46,435
Gross profit	20,696	3,678
Operating Expenses [Abstract]
Selling, general and administrative expenses	5,644	6,034
Research and development expenses	7,403	7,974
Restructuring and other charges	2,115	2,894
Total operating expenses	15,162	16,902
Operating income (loss) from discontinued operations	5,534	(13,224)
Foreign currency gain, net	2,097	613
Other income	107	86
Income (loss) from discontinued operations before income tax expense	7,738	(12,525)
Income tax expense	409	45
Income (loss) from discontinued operations, net of tax	7,329	(12,570)
Foundry Services Group [Member] | Discontinued Operations [Member]
Revenues:
Total revenues	86,279	57,116
Cost of sales:
Total cost of sales	65,583	53,438
Fab Three Foundry Services [Member] | Discontinued Operations [Member]
Revenues:
Total revenues	(9,737)	(7,003)
Cost of sales:
Total cost of sales	$ (9,737)	$ (7,003)

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Sales of Accounts Receivable and Receivable Discount Program - Additional Information (Detail) - Trade Accounts Receivable [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Proceeds from sale of accounts receivable	$ 7,989
Selling, General and Administrative Expenses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pre-tax losses on accounts receivable	$ 25

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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 127,691	$ 134,520
Less: accumulated depreciation	(73,987)	(75,704)
Property, plant and equipment, net	67,201	73,068
Buildings and Related Structures [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21,309	22,502
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	85,213	89,453
Finance Lease Right Of Use Assets [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	306	323
Others [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	20,863	22,242
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 13,497	$ 14,252

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Fair Value Measurements - Schedule of Fair Value of Long-term Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Long-term Borrowings:
Carrying amount of senior notes	$ 223,012	$ 304,743
5.0% Exchangeable Senior Notes due March 2021 [Member] | Exchangeable Senior Notes [Member] | Significant Other Observable Inputs (Level 2) [Member]
Long-term Borrowings:
Carrying amount of senior notes	82,328	81,959
Estimated fair value of senior notes	94,479	116,078
6.625% Senior Notes Due 2021 [Member] | Senior Notes [Member] | Significant Other Observable Inputs (Level 2) [Member]
Long-term Borrowings:
Carrying amount of senior notes	223,012	222,784
Estimated fair value of senior notes	$ 210,795	$ 224,250

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Derivative Financial Instruments - Offsetting of Derivative Liabilities (Detail) - Zero Cost Collars [Member] $ in Thousands	Dec. 31, 2019 USD ($)
Derivative [Line Items]
Liability Derivatives, Gross amounts of recognized liabilities	$ 1,456
Liability Derivatives, Net amounts of liabilities presented in the balance sheets	1,456
Liability Derivatives, Gross amounts not offset in the balance sheets, Cash collateral pledged	1,070
Liability Derivatives, Net amount after master netting	$ 2,526

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Inventories (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories as of March 31, 2020 and December 31, 2019 consist of the following (in thousands):

	March 31, 2020			December 31, 2019
Finished goods	$	8,448		$	10,087
Semi-finished goods and work-in-process		25,342			28,815
Raw materials		7,916			8,449
Materials in-transit		231			—
Less: inventory reserve		(4,807	)		(5,947	)
Inventories, net	$	37,130		$	41,404

Changes in Inventory Reserve

Changes in inventory reserve for the three months ended March 31, 2020 and 2019 are as follows (in thousands):

	Three Months Ended
	March 31, 2020			March 31, 2019
Beginning balance	$	(5,947	)	$	(4,845	)
Change in reserve
Inventory reserve charged to costs of sales		(1,275	)		(5,073	)
Sale of previously reserved inventory		906			476
		(369	)		(4,597	)
Write off		499			592
Translation adjustments		316			160
Reclassified to assets held for sale		694			—
Ending balance	$	(4,807	)	$	(8,690	)

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Loss Per Share

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Loss Per Share

17. Loss Per Share

The following table illustrates the computation of basic and diluted loss per common share for the three months ended March 31, 2020 and 2019:

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars, except share data)
Basic and diluted loss per share
Loss from continuing operations	$	(31,078	)	$	(21,555	)
Income (loss) from discontinued operations, net of tax		7,329			(12,570	)
Net loss	$	(23,749	)	$	(34,125	)
Weighted average number of shares – basic and diluted		34,893,157			34,194,878
Basic and diluted earnings (loss) per common share
Continuing operations	$	(0.89	)	$	(0.63	)
Discontinued operations		0.21			(0.37	)
Total	$	(0.68	)	$	(1.00	)

The following outstanding instruments were excluded from the computation of diluted loss per share, as they have an anti-dilutive effect on the calculation:

	Three Months Ended
	March 31, 2020		March 31, 2019
Options		2,163,845		2,632,300
Restricted Stock Units		729,939		508,943

For the three months ended March 31, 2020 and 2019, 10,144,155 shares and 10,182,542 shares, respectively, of potential common stock from the assumed conversion of Exchangeable Notes were excluded from the computation of diluted loss per share as the effects were anti-dilutive for the periods.

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Foreign Currency Loss, Net

3 Months Ended

Mar. 31, 2020

Foreign Currency [Abstract]

Foreign Currency Loss,

13. Foreign Currency Loss, Net

Net foreign currency gain or loss includes non-cash translation gain or loss associated with intercompany balances. A substantial portion of the Company’s net foreign currency gain or loss is non-cash translation gain or loss associated with intercompany long-term loans to the Company’s Korean subsidiary. The loans are denominated in US dollars and are affected by changes in the exchange rate between the Korean won and the US dollar. As of March 31, 2020 and December 31, 2019, the outstanding intercompany loan balances including accrued interest between the Korean subsidiary and the Dutch subsidiary were $684,021 thousand and $686,485 thousand, respectively. The Korean won to US dollar exchange rates were 1,222.6:1, 1,157.8:1 using the first base rate as of March 31, 2020 and December 31, 2019, respectively, as quoted by the KEB Hana Bank.

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Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Details of Derivative Contracts

Details of derivative contracts as of March 31, 2020 are as follows (in thousands):

Date of transaction	Type of derivative		Total notional amount		Month of settlement
August 13, 2019		Zero cost collar	$	30,000	April 2020 to June 2020
September 27, 2019		Zero cost collar	$	21,000	April 2020 to June 2020
December 4, 2019		Zero cost collar	$	30,000	July 2020 to December 2020
January 31, 2020		Zero cost collar	$	30,000	July 2020 to December 2020
February 3, 2020		Zero cost collar	$	18,000	July 2020 to December 2020
February 21, 2020		Zero cost collar	$	30,000	July 2020 to December 2020

Details of derivative contracts as of December 31, 2019 are as follows (in thousands):

Date of transaction	Type of derivative		Total notional amount		Month of settlement
August 13, 2019		Zero cost collar	$	60,000	January 2020 to June 2020
September 27, 2019		Zero cost collar	$	42,000	January 2020 to June 2020
December 4, 2019		Zero cost collar	$	30,000	July 2020 to December 2020

Fair Values of Outstanding Zero Cost Collar and Forward Contracts Recorded as Assets and Liabilities

The fair values of the Company’s outstanding zero cost collar contracts recorded as assets and liabilities as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

Derivatives designated as hedging instruments:		March 31, 2020		December 31, 2019
Asset Derivatives:
Zero cost collars	Other current assets	$	—	$	1,456
Liability Derivatives:
Zero cost collars	Other current liabilities	$	3,500	$	—

Offsetting of Derivative Liabilities

Offsetting of derivative liabilities as of March 31, 2020 is as follows (in thousands):

As of March 31, 2020	Gross amounts of recognized liabilities		Gross amounts offset in the balance sheets		Net amounts of liabilities presented in the balance sheets		Gross amounts not offset in the balance sheets					Net amount
							Financial instruments		Cash collateral pledged
Liability Derivatives:
Zero cost collars	$	3,500	$	—	$	3,500	$	—	$	(2,720	)	$	780

Offsetting of Derivative Assets

Offsetting of derivative assets as of December 31, 2019 is as follows (in thousands):

As of December 31, 2019	Gross amounts of recognized assets		Gross amounts offset in the balance sheets		Net amounts of assets presented in the balance sheets		Gross amounts not offset in the balance sheets				Net amount
							Financial instruments		Cash collateral pledged
Asset Derivatives:
Zero cost collars	$	1,456	$	—	$	1,456	$	—	$	1,070	$	2,526

Impact of Derivative Instruments on Consolidated Statement of Operations

The following table summarizes the impact of derivative instruments on the consolidated statements of operations for the three months ended March 31, 2020 and 2019 (in thousands):

Derivatives in ASC 815 Cash Flow Hedging Relationships	Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)						Location/Amount of Loss Reclassified from AOCI Into Statement of Operations (Effective Portion)								Location/Amount of Gain (Loss) Recognized in Statement of Operations on Derivatives (Ineffective Portion)
	Three Months Ended March 31,								Three Months Ended March 31,								Three Months Ended March 31,
	2020			2019					2020			2019					2020		2019
Zero cost collars	$	(5,004	)	$	34			Net sales	$	(58	)	$	—			Other income, net	$	117	$	—
Forwards	$	—		$	(533	)		Net sales	$	—		$	(89	)		Other income, net	$	—	$	(56	)
Forwards—excluded time value								Net sales	$	—		$	(98	)
	$	(5,004	)	$	(499	)			$	(58	)	$	(187	)			$	117	$	(56	)

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Geographic and Other Information (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Schedule of Operating Segments

The following sets forth information relating to the single continuing operating segment (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Revenues
Standard products business
Display Solutions	$	77,593	$	58,230
Power Solutions		33,143		42,034
Total standard products business	$	110,736	$	100,264
Transitional Fab 3 foundry services		9,737		7,003
Total revenues	$	120,473	$	107,267

	Three Months Ended
	March 31, 2020		March 31, 2019
Gross Profit
Standard products business	$	29,130	$	19,023
Transitional Fab 3 foundry services		—		—
Total gross profit	$	29,130	$	19,023

Net Sales by Region, Based on Location of Products are Billed

The following is a summary of net sales – standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Korea	$	30,817	$	34,646
Asia Pacific (other than Korea)		77,542		63,747
United States		709		462
Europe		971		1,133
Others		697		276
Total	$	110,736	$	100,264

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Leases

3 Months Ended

Mar. 31, 2020

Leases [Abstract]

Leases

7. Leases

The Company has operating and finance leases for buildings and other assets such as vehicles and office equipment. The Company’s leases have remaining lease terms ranging from 1 year to 4 years.

The tables below present financial information related to the Company’s leases.

The Company adopted the new lease accounting standard as of January 1, 2019, using the modified retrospective transition method. The tables below present financial information related to the Company’s leases

Supplemental balance sheets information related to leases as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

Leases	Classification	March 31, 2020		December 31, 2019
Assets
Operating lease	Operating lease right-of-use assets	$	1,413	$	1,876
Finance lease	Property, plant and equipment, net		229		258
Total lease assets		$	1,642	$	2,134
Liabilities
Current
Operating	Operating lease liabilities	$	1,301	$	1,625
Finance	Other current liabilities		58		60
Non-current
Operating	Other non-current liabilities		112		251
Finance	Other non-current liabilities		182		208
Total lease liabilities		$	1,653	$	2,144

The following table presents the weighted average remaining lease term and discount rate:

	March 31, 2020			December 31, 2019
Weighted average remaining lease term
Operating leases		1.0 years			1.1 years
Finance leases		3.8 years			4.0 years
Weighted average discount rate
Operating leases		7.35	%		7.19	%
Finance leases		7.75	%		7.75	%

The components of lease cost included in the Company’s consolidated statements of operations, are as follows (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Operating lease cost	$	468	$	525
Finance lease cost
Amortization of right-of-use assets		16		17
Interest on lease liabilities		5		6
Total lease cost	$	489	$	548

The above table does not include an immaterial cost of short-term leases for the three months ended March 31, 2020 and 2019.

Other lease information is as follows (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	468	$	525
Operating cash flows from finance leases		5		6
Financing cash flows from finance leases		14		14

The aggregate future lease payments for operating and finance leases as of March 31, 2020 are as follows (in thousands):

	Operating Leases			Finance Leases
2020	$	1,192		$	55
2021		254			74
2022		21			74
2023		1			74
Thereafter		—			—
Total future lease payments		1,468			277
Less: Imputed interest		(55	)		(37	)
Present value of future payments	$	1,413		$	240

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Sales of Accounts Receivable and Receivable Discount Program

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

Sales of Accounts Receivable and Receivable Discount Program

3. Sales of Accounts Receivable and Receivable Discount Program

The Company has entered into an agreement to sell selected trade accounts receivable to a financial institution from time to time since March 2012. After the sale, the Company does not retain any interest in the receivables and the applicable financial institution collects these accounts receivable directly from the customer. There was no sale of these accounts receivable for the three months ended March 31, 2020. For the three months ended March 31, 2019, the proceeds from the sales of these accounts receivable totaled $7,989 thousand and these sales resulted in pre-tax losses of $25 thousand, which are included in selling, general and administrative expenses in the consolidated statements of operations. Net proceeds of this accounts receivable sale program are recognized in the consolidated statements of cash flows as part of operating cash flows.

The Company uses receivable discount programs with certain customers. These discount arrangements allow the Company to accelerate collection of customers’ receivables. 

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Borrowings

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

Long-term Borrowings

11. Borrowings

Borrowings as of March 31, 2020 and December 31, 2019 are as follows (in thousands):

	March 31, 2020			December 31, 2019
5.0% Exchangeable Senior Notes due March 2021	$	83,740		$	83,740
6.625% Senior Notes due July 2021		224,250			224,250
Less: unamortized discount and debt issuance costs		(2,650	)		(3,247	)
Total borrowings, net		305,340			304,743
Less: current portion of long-term borrowings, net		(82,328	)		—
Long-term borrowings, net	$	223,012		$	304,743

5.0% Exchangeable Senior Notes

On January 17, 2017, MagnaChip Semiconductor S.A. closed the Exchangeable Notes Offering of $86,250 thousand aggregate principal amount of 5.0% Exchangeable Notes. Interest on the Exchangeable Notes accrues at a rate of 5.0% per annum, payable semi-annually on March 1 and September 1 of each year, beginning on March 1, 2017. The Exchangeable Notes will mature on March 1, 2021, unless earlier repurchased or converted. Holders may convert their notes at their option at any time prior to the close of business on the business day immediately preceding the stated maturity date.

The Company used a portion of the net proceeds from the issuance to repurchase 1,795,444 shares of common stock under its stock repurchase program at an aggregate cost of $11,401 thousand.

Upon conversion, the Company will deliver for each $1,000 principal amount of converted notes a number of shares equally to the exchange rate, which will initially be 121.1387 shares of common stock per $1,000 principal amount of Exchangeable Notes, equivalent to an initial exchange price of approximately $8.26 per share of common stock. The exchange rate will be subject to adjustment in some circumstances, but will not be adjusted for any accrued and unpaid interest. In addition, if a “make-whole fundamental change” (as defined in the Exchangeable Notes indenture (the “Exchangeable Notes Indenture”)) occurs prior to the stated maturity date, the Company will increase the exchange rate for a holder who elects to convert its notes in connection with such make-whole fundamental change in certain circumstances. MagnaChip Semiconductor S.A. may also, under certain circumstances, be required to pay additional amounts to holders of Exchangeable Notes if withholding or deduction is required in a relevant tax jurisdiction.

If the Company undergoes a fundamental change, subject to certain conditions, holders may require the Company to repurchase for cash all or part of their notes at a purchase price equal to 100% of the principal amount of the notes to be repurchased, plus accrued and unpaid interest to, but excluding, the fundamental change purchase date. In addition, upon certain events of default described in the Exchangeable Notes Indenture, the trustee or holders of at least 25% principal amount of the Exchangeable Notes may declare 100% of the then outstanding Exchangeable Notes due and payable in full, together with all accrued and unpaid interest thereon. Payment of principal on the Exchangeable Notes may also accelerate and become automatically due and payable upon certain events of default involving bankruptcy or insolvency proceedings involving the Company, MagnaChip Semiconductor S.A. and their significant subsidiaries. The Exchangeable Notes are not redeemable at the option of MagnaChip Semiconductor S.A. prior to the maturity date.

The Exchangeable Notes Indenture contains covenants that limit the ability of the Company, MagnaChip Semiconductor S.A. and the Company’s other restricted subsidiaries to: (i) declare or pay any dividend or make any payment or distribution on account of or purchase or redeem the Company’s capital stock or equity interests of the restricted subsidiaries; (ii) make any principal payment on, or redeem or repurchase, prior to any scheduled repayment or maturity, any subordinated indebtedness; (iii) make certain investments; (iv) incur additional indebtedness and issue certain types of capital stock; (v) create or incur any lien (except for permitted liens) that secures obligations under any indebtedness; (vi) merge with or into or sell all or substantially all of the Company’s assets to other companies; (vii) enter into certain types of transactions with affiliates; (viii) guarantee the payment of any indebtedness; and (ix) designate unrestricted subsidiaries.

These covenants are subject to a number of exceptions and qualifications. Certain of these restrictive covenants will terminate if the Exchangeable Notes are rated investment grade at any time.

The Company incurred debt issuance costs of $5,902 thousand related to the issuance of the Exchangeable Notes. The debt issuance costs are recorded as a direct deduction from the long-term borrowings in the consolidated balance sheets and amortized to interest expense using the effective interest method over the term of the Exchangeable Notes. Interest expense related to the Exchangeable Notes for the three months ended March 31, 2020 and 2019 were $1,416 thousand and $1,408 thousand, respectively.

In December 2018, the Company repurchased a principal amount equal to $1,590 thousand of the Exchangeable Notes in the open market, resulting in a loss of $234 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2018. In February 2019, the Company repurchased a principal amount equal to $920 thousand of the Exchangeable Notes in the open market, resulting in a loss of $63 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2019.

6.625% Senior Notes

On July 18, 2013, the Company issued a $225,000,000 aggregate principal amount of the 2021 Notes at a price of 99.5%. Interest on the 2021 Notes accrues at a rate of 6.625% per annum, payable semi-annually on January 15 and July 15 of each year, beginning on January 15, 2014.

On or after July 15, 2019, the Company can optionally redeem all or a part of the 2021 Notes at a redemption price equal to 100% of the principal amount of the notes plus accrued and unpaid interest and special interest, if any, on the notes redeemed, to the applicable date of redemption.

The Indenture relating to the 2021 Notes contains covenants that limit the ability of the Company and its restricted subsidiaries to: (i) declare or pay any dividend or make any payment or distribution on account of or purchase or redeem the Company’s capital stock or equity interests of the restricted subsidiaries; (ii) make any principal payment on, or redeem or repurchase, prior to any scheduled repayment or maturity, any subordinated indebtedness; (iii) make certain investments; (iv) incur additional indebtedness and issue certain types of capital stock; (v) create or incur any lien (except for permitted liens) that secures obligations under any indebtedness; (vi) merge with or into or sell all or substantially all of the Company’s assets to other companies; (vii) enter into certain types of transactions with affiliates; (viii) guarantee the payment of any indebtedness; (ix) enter into sale-leaseback transactions; (x) enter into agreements that would restrict the ability of the restricted subsidiaries to make distributions with respect to their equity to the Company or other restricted subsidiaries, to make loans to the Company or other restricted subsidiaries or to transfer assets to the Company or other restricted subsidiaries; and (xi) designate unrestricted subsidiaries.

These covenants are subject to a number of exceptions and qualifications. Certain of these restrictive covenants will terminate if the 2021 Notes are rated investment grade at any time.

The Company incurred original issue discount of $1,125 thousand and debt issuance costs of $5,039 thousand related to the issuance of the 2021 Notes. The original issue discount and the debt issuance costs are recorded as a direct deduction from the long-term borrowings in the consolidated balance sheets and amortized to interest expense using the effective interest method over the term of the 2021 Notes. Interest expense related to the 2021 Notes for the three months ended March 31, 2020 and 2019 were $3,943 thousand and $3,930 thousand, respectively.

In December 2018, the Company repurchased a principal amount equal to $500 thousand of the 2021 Notes in the open market, resulting in a net gain of $28 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2018. In January 2019, the Company repurchased a principal amount equal to $250 thousand of the 2021 Notes in the open market, resulting in a net gain of $21 thousand, which was recorded as loss on early extinguishment of long-term borrowings, net in the consolidated statements of operations for the year ended December 31, 2019.

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Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Foreign currency translation adjustments	$ 18,046	$ (4,205)
Derivative adjustments	(3,401)	1,545
Total	$ 14,645	$ (2,660)

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Loss Per Share - Additional Information (Detail) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Conversion Of Exchangeable Notes	10,144,155	10,182,542

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Accrued Severance Benefits - Changes in Accrued Severance Benefits (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Postemployment Benefits [Abstract]
Beginning balance	$ 53,344	$ 55,691
Provisions	2,019	1,314
Severance payments	(1,952)	(1,496)
Translation adjustments	(2,801)	(956)
Ending balance	50,610	54,553
Less: Cumulative contributions to severance insurance deposit accounts	(1,557)	(869)
The National Pension Fund	(75)	(87)
Group severance insurance plan	(213)	(243)
Accrued severance benefits, net	$ 48,765	$ 53,354	$ 51,181

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Geographic and Other Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Customer Concentration Risk [Member] | Net Sales [Member] | Top Ten Customers [Member] | Standard Products Group [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	90.00%	88.00%
Customer Concentration Risk [Member] | Net Sales [Member] | Top Customer One [Member] | Standard Products Group [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	52.80%	45.00%
Customer Concentration Risk [Member] | Net Sales [Member] | Top Customer Two [Member] | Standard Products Group [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	15.80%	11.60%
Geographic Concentration Risk [Member] | Net Sales [Member] | Asia Pacific Other Than Korea [Member] | Standard Products Group [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	95.30%
Geographic Concentration Risk [Member] | Net Sales [Member] | CHINA | Standard Products Group [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage		94.10%
Geographic Concentration Risk [Member] | Property, Plant and Equipment [Member] | Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	95.00%

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings (Deficit) [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance beginning at Dec. 31, 2018	$ (17,310)		$ 431	$ 142,600	$ (36,305)	$ (103,926)	$ (20,110)
Balance, Shares beginning at Dec. 31, 2018		34,441,232
Stock-based compensation	669			669
Exercise of stock options	48		0	48
Exercise of stock options, Shares		8,624
Settlement of restricted stock units			2	(2)
Settlement of restricted stock units, Shares		167,453
Acquisition of treasury stock	(2,585)					(2,585)
Acquisition of treasury stock, Shares		(393,807)
Other comprehensive income, net	6,992						6,992
Net loss	(34,125)
Balance ending at Mar. 31, 2019	(46,311)		433	143,315	(70,430)	(106,511)	(13,118)
Balance, Shares ending at Mar. 31, 2019		34,223,502
Balance beginning at Dec. 31, 2019	$ (14,981)		439	152,404	(58,131)	(107,033)	(2,660)
Balance, Shares beginning at Dec. 31, 2019	34,800,312	34,800,312
Stock-based compensation	$ 885			885
Settlement of restricted stock units			3	(3)
Settlement of restricted stock units, Shares		308,364
Acquisition of treasury stock	(616)					(616)
Acquisition of treasury stock, Shares		(53,994)
Other comprehensive income, net	17,305						17,305
Net loss	(23,749)				(23,749)
Balance ending at Mar. 31, 2020	$ (21,156)		$ 442	$ 153,286	$ (81,880)	$ (107,649)	$ 14,645
Balance, Shares ending at Mar. 31, 2020	35,054,682	35,054,682

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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 157,293	$ 151,657
Accounts receivable, net	60,688	47,447
Inventories, net	37,130	41,404
Other receivables	8,297	10,200
Prepaid expenses	11,148	9,003
Hedge collateral (Note 9)	13,270	9,820
Other current assets (Notes 10 and 18)	6,762	10,013
Current assets held for sale (Note 2)	201,619	99,821
Total current assets	496,207	379,365
Property, plant and equipment, net	67,201	73,068
Operating lease right-of-use assets	1,413	1,876
Intangible assets, net	2,583	2,769
Long-term prepaid expenses	4,117	5,757
Other non-current assets	8,439	9,059
Non-current assets held for sale (Note 2)		123,434
Total assets	579,960	595,328
Current liabilities
Accounts payable	40,206	40,376
Other accounts payable	6,379	6,410
Accrued expenses	41,489	44,799
Operating lease liabilities	1,301	1,625
Current portion of long-term borrowings, net	82,328
Other current liabilities (Note 10)	6,982	3,583
Current liabilities held for sale (Note 2)	142,013	37,040
Total current liabilities	320,698	133,833
Long-term borrowings, net	223,012	304,743
Accrued severance benefits, net	48,765	51,181
Other non-current liabilities (Note 6)	8,641	9,671
Non-current liabilities held for sale (Note 2)		110,881
Total liabilities	601,116	610,309
Commitments and contingencies (Note 18)
Stockholders' equity
Common stock, $0.01 par value, 150,000,000 shares authorized, 44,160,355 shares issued and 35,054,682 outstanding at March 31, 2020 and 43,851,991 shares issued and 34,800,312 outstanding at December 31, 2019	442	439
Additional paid-in capital	153,286	152,404
Accumulated deficit	(81,880)	(58,131)
Treasury stock, 9,105,673 shares at March 31, 2020 and 9,051,679 shares at December 31, 2019, respectively	(107,649)	(107,033)
Accumulated other comprehensive income (loss)	14,645	(2,660)
Total stockholders' deficit	(21,156)	(14,981)
Total liabilities and stockholders' equity	$ 579,960	$ 595,328

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Leases - Aggregate future lease payment (Detail) $ in Thousands	Mar. 31, 2020 USD ($)
Leases [Abstract]
Operating Leases, 2020	$ 1,192
Operating Leases, 2021	254
Operating Leases, 2022	21
Operating Leases, 2023	1
Operating Leases, Thereafter	0
Operating Leases, Total future lease payments	1,468
Less: Present value adjustment	(55)
Present value of future payments	1,413
Finance Leases [Abstract]
Finance Leases, 2020	55
Finance Leases, 2021	74
Finance Leases, 2022	74
Finance Leases, 2023	74
Finance Leases, Thereafter	0
Finance Leases, Total future lease payments	277
Less: Present value adjustment	(37)
Present value of future payments	$ 240

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Leases - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2020
Maximum [Member]
Lease Agreements Remaining Term of Lease	4 years
Minimum [Member]
Lease Agreements Remaining Term of Lease	1 year

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Fair Value Measurements - Additional Information (Detail) - USD ($)			3 Months Ended
	Jan. 17, 2017	Jul. 18, 2013	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Feb. 28, 2019	Jan. 31, 2019	Dec. 31, 2018
6.625% Senior Notes Due 2021 [Member] | Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate		6.625%	6.625%	6.625%
Aggregate principal amount		$ 225,000,000
Debt issuance costs paid		5,039,000
Original debt issue discount		$ 1,125,000
Principal Repurchase Amount Of Exchangeable Notes							$ 250,000	$ 500,000
5.0% Exchangeable Senior Notes due March 2021 [Member] | Exchangeable Senior Notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate	5.00%		5.00%	5.00%
Aggregate principal amount	$ 86,250,000
Debt issuance costs paid	$ 5,902,000		$ 5,902,000
Principal Repurchase Amount Of Exchangeable Notes						$ 920,000		$ 1,590,000
Other Asset Class [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value on non-recurring basis			0		$ 0
Liabilities fair value on non-recurring basis			$ 0		$ 0

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Derivative Financial Instruments - Fair Values of Outstanding Zero Cost Collar and Forward Contracts Recorded as Assets and Liabilities (Detail) - Zero Cost Collars [Member] - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Asset Derivatives:
Other current assets	$ 3,500
Liability Derivatives:
Other current liabilities		$ 1,456
Other Current Assets [Member]
Asset Derivatives:
Other current assets		$ 1,456
Other Current Liabilities [Member]
Liability Derivatives:
Other current liabilities	$ 3,500

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Borrowings - Components of Long-term Borrowings (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Less: unamortized discount and debt issuance costs	$ (2,650)	$ (3,247)
Total borrowings, net	305,340	304,743
Less: current portion of long-term borrowings, net	(82,328)
Long-term borrowings, net	223,012	304,743
Exchangeable Senior Notes [Member] | 5.0% Exchangeable Senior Notes due March 2021 [Member]
Debt Instrument [Line Items]
Long-term borrowings	83,740	83,740
Senior Notes [Member] | 6.625% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Long-term borrowings	$ 224,250	$ 224,250

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Discontinued Operations and Assets Held for Sale - Schedule Of Results From Discontinued Operations Balance Sheet (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets
Total current assets held for sale	$ 201,619	$ 99,821
Current liabilities
Total current liabilities held for sale	142,013	37,040
Foundry Services Group And Fab Three Foundry Services [Member]
Current assets
Accounts receivable, net	40,735	48,194
Unbilled accounts receivable, net	9,374	16,463
Inventories, net	34,968	31,863
Other current assets	2,891	3,301
Other assets of the disposal group classified as held for sale	1,461
Total current assets held for sale	89,429	99,821
Property, plant and equipment, net	99,604	109,506
Intangible assets, net	1,202	1,245
Other non-current assets	11,384	12,683
Total assets held for sale	201,619	223,255
Current liabilities
Accounts payable	20,462	20,503
Other current liabilities	14,773	16,537
Total current liabilities held for sale	35,235	37,040
Accrued severance benefits, net	93,121	95,547
Other non-current liabilities	13,657	15,334
Total liabilities held for sale	$ 142,013	$ 147,921

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Inventories - Changes in Inventory Reserve (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Inventory Disclosure [Abstract]
Beginning balance	$ (5,947)	$ (4,845)
Change in reserve
Inventory reserve charged to costs of sales	(1,275)	(5,073)
Sale of previously reserved inventory	906	476
Change in reserve	(369)	(4,597)
Write off	499	592
Translation adjustments	316	160
Reclassified to assets held for sale	694
Ending balance	$ (4,807)	$ (8,690)

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Business, Basis of Presentation and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Business

Business

MagnaChip Semiconductor Corporation (together with its subsidiaries, the “Company”) is a designer and manufacturer of analog and mixed-signal semiconductor platform solutions for communications, Internet of Things (“IoT”) applications, consumer, industrial and automotive applications. The Company provides technology platforms for analog, mixed signal, power, high voltage, non-volatile memory and Radio Frequency (“RF”) applications.

On March 30, 2020, the Company entered into a definitive Business Transfer Agreement (the “BTA”) for the sale of its Foundry Services Group business and its fabrication facility located in Cheongju (“Fab 4”), the larger of the Company’s two 8-inch manufacturing facilities, to Magnus Semiconductor, LLC, a Korean limited liability company, or one of its wholly owned subsidiaries (the “Buyer”) for a purchase price equal to the KRW equivalent of $344.7 million in cash, subject to working capital adjustments set forth in the BTA. The Buyer is a special purpose company formed by Alchemist Capital Partners Korea Co., Ltd. and Credian Partners, Inc. This planned divestiture of the Foundry Services Group business and Fab 4 will allow the Company to strategically shift its operational focus to its standard products business. The Foundry Services Group was historically a reportable segment. As a result of the entry into the BTA, the results of the Foundry Services Group were classified as discontinued operations in the Company’s consolidated statements of operations and excluded from both continuing operations and segment results for all periods presented. Accordingly, commencing with the first quarter of 2020, the Company has one reportable segment: its standard products business, together with transitional foundry services associated with its fabrication facility located in Gumi, Korea, known as “Fab 3,” that it expects to perform for the Buyer for a period of up to three years (the “Transitional Fab 3 Foundry Services”). The Company’s standard products business includes its Display Solutions and Power Solutions business lines. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and mobile, automotive applications and home appliances. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer and industrial applications.

Basis of Presentation

Basis of Presentation

The accompanying unaudited interim consolidated financial statements of the Company have been prepared in accordance with generally accepted accounting principles in the United States of America (“US GAAP”). These interim consolidated financial statements include normal recurring adjustments and the elimination of all intercompany accounts and transactions which are, in the opinion of management, necessary to provide a fair statement of the Company’s financial condition and results of operations for the periods presented. These interim consolidated financial statements are presented in accordance with Accounting Standards Codification 270, “Interim Reporting” and, accordingly, do not include all of the information and note disclosures required by US GAAP for complete financial statements, except for the changes below. The results of operations for the three months ended March 31, 2020 are not necessarily indicative of the results to be expected for a full year or for any other periods.

The Company has reclassified certain prior year amounts to conform to the current year’s presentation for discontinued operations to reflect the anticipated divestiture of its Foundry Services Group business and Fab 4. The assets to be acquired and liabilities to be transferred to the Buyer, as specified in the BTA, have been classified as assets and liabilities held for sale in the Company’s consolidated balance sheets, subject to adjustments set forth in the BTA. See Note 2 “Discontinued Operations and Assets Held for Sale” for additional information. The consolidated statements of cash flows have not been adjusted to separately disclose cash flows related to discontinued operations, but the material items in the operating and investing activities of cash flows relating to discontinued operations are disclosed in Note 2. Unless otherwise stated, information in these notes to consolidated financial statements relates to the Company’s continuing operations and excludes the discontinued operations.

There have been no material changes to the Company’s significant accounting policies as of and for the three months ended March 31, 2020, except for those related to discontinued operations and assets held for sale as described below, as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

Discontinued Operations and Assets Held for Sale

Discontinued Operations and Assets Held for Sale

The Company reports the results of operations of a business as discontinued operations if a disposal represents a strategic shift that has or will have a major effect on the Company’s operations and financial results when the business is sold and classified as held for sale, in accordance with the criteria of Accounting Standard Codification (“ASC”) 205, “Presentation of Financial Statements” (“ASC 205”) and ASC 360, “Property, Plant and Equipment” (“ASC 360”). Assets and liabilities of a business classified as held for sale are recorded at the lower of its carrying amount or estimated fair value less costs to sell. If the carrying amount of the business exceeds its estimated fair value less costs to sell, a loss is recognized. Assets and liabilities related to discontinued operations classified as held for sale are segregated in the current and prior balance sheets in the period in which the business is classified as held for sale. The results of discontinued operations are reported in “Income (loss) from discontinued operations, net of tax” in the accompanying consolidated statements of operations for the current and prior periods commencing in the period in which the business meets the criteria.

Recent Accounting Pronouncements Not Yet Adopted

Recent Accounting Pronouncements Not Yet Adopted

In December 2019, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” (“ASU 2019-12”). ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and improves consistent application of and simplifies GAAP for other areas of Topic 740 by clarifying and amending existing guidance. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company does not expect the adoption of ASU 2019-12 to have a material effect on the Company’s consolidated financial statements.

Recently Adopted Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In June 2016, the FASB issued Accounting Standards Update No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 amends the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables. In April 2019, the FASB issued Accounting Standards Update No. 2019-04, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging, and Topic 825, Financial Instruments” (“ASU 2019-04”), and in November 2019, the FASB issued Accounting Standards Update No. 2019-11, “Codification Improvements to Topic 326, Financial Instruments—Credit Losses” (“ASU 2019-11”) to clarify and address certain items related to the amendments in ASU 2016-13. In February 2020, the FASB issued Accounting Standards Update No. 2020-02, “Financial Instruments—Credit Losses (Topic 326)” (“ASU 2020-02”), which incorporates SEC SAB 119 (updated from SAB 102) into the ASC by aligning SEC recommended policies and procedures with ASC 326.The Company adopted ASU 2016-13, ASU 2019-04, ASU 2019-11 and ASU 2020-02 as of January 1, 2020, and the adoption did not have a material impact on the Company’s consolidated financial statements.

In August 2018, the FASB issued Accounting Standards Update No. 2018-13 “Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”). ASU 2018-13 amends existing fair value measurement disclosure requirements by adding, changing, or removing certain disclosures. The Company adopted ASU 2018-13 as of January 1, 2020, and the adoption of ASU 2018-13 did not impact the Company’s consolidated financial statements.

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Geographic and Other Information

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Geographic and Segment Information

15. Geographic and Other Information

Historically, the Company operated in two reportable segments: Foundry Services Group and Standard Products Group. The Company’s Foundry Services Group provides specialty analog and mixed-signal foundry services mainly for fabless and Integrated Device Manufacturer (“IDM”) semiconductor companies that primarily serve communications, IoT, consumer, industrial and automotive applications. The Company’s Standard Products Group is comprised of two business lines: Display Solutions and Power Solutions. The Company’s Display Solutions products provide panel display solutions to major suppliers of large and small rigid and flexible panel displays, and mobile, automotive applications and home appliances. The Company’s Power Solutions products include discrete and integrated circuit solutions for power management in communications, consumer and industrial applications.

On March 30, 2020, the Company entered into the BTA to sell its Foundry business and Fab 4. The planned divestiture of its Foundry business and Fab 4 allows the Company to strategically shift its operational focus to its standard products business. As a result, the results of the Foundry Services Group were classified as discontinued operations in the Company’s consolidated statements of operations and thus excluded from both continuing operations and segment results for all periods presented. Please see “Item 1. Financial Statements and Supplementary Data—Notes to Consolidated Financial Statements—Note 2. Discontinued Operations and Assets Held for Sale” for additional information on the results of discontinued operations. Accordingly, the Company now has one reportable segment. The Company’s chief operating decision maker is its Chief Executive Officer, who allocates resources and assesses performance of the business and other activities based on gross profit.

The following sets forth information relating to the single continuing operating segment (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Revenues
Standard products business
Display Solutions	$	77,593	$	58,230
Power Solutions		33,143		42,034
Total standard products business	$	110,736	$	100,264
Transitional Fab 3 foundry services		9,737		7,003
Total revenues	$	120,473	$	107,267

	Three Months Ended
	March 31, 2020		March 31, 2019
Gross Profit
Standard products business	$	29,130	$	19,023
Transitional Fab 3 foundry services		—		—
Total gross profit	$	29,130	$	19,023

The following is a summary of net sales – standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Three Months Ended
	March 31, 2020		March 31, 2019
Korea	$	30,817	$	34,646
Asia Pacific (other than Korea)		77,542		63,747
United States		709		462
Europe		971		1,133
Others		697		276
Total	$	110,736	$	100,264

For the three months ended March 31, 2020 and 2019, of the Company’s net sales – standard products business in Asia Pacific (other than Korea) and net sales – standard products business in Greater China (China, Hong Kong and Macau) represented 95.3% and 94.1% of total net sales – standard products business, respectively.

Net sales from the Company’s top ten largest customers in the standard products business (which does not include the Transitional Fab 3 Foundry Services) accounted for 90% and 88% for the three months ended March 31, 2020 and 2019, respectively.

For the three months ended March 31, 2020, the Company had two customers that represented 52.8% and 15.8% of its net sales – standard products business. For the three months ended March 31, 2019, the Company had two customers that represented 45.0% and 11.6% of its net sales – standard products business.

95% of the Company’s property, plant and equipment from continuing operations are located in Korea as of March 31, 2020.

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Borrowings - Components of Long-term Borrowings (Parenthetical) (Detail)			3 Months Ended	12 Months Ended
	Jan. 17, 2017	Jul. 18, 2013	Mar. 31, 2020	Dec. 31, 2019
5.0% Exchangeable Senior Notes due March 2021 [Member] | Exchangeable Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate	5.00%		5.00%	5.00%
Due date	Mar. 01, 2021		Mar. 01, 2021	Mar. 01, 2021
6.625% Senior Notes Due July 2021 [Member] | Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate		6.625%	6.625%	6.625%
Due date		Jul. 15, 2021	Jul. 01, 2021	Jul. 01, 2021

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Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Carrying Value [Member] | Other Current Assets [Member]
Assets:
Derivative assets		$ 1,456
Carrying Value [Member] | Other Current Liabilities [Member]
Liabilities:
Derivative liabilities	$ 3,500
Estimate of Fair Value Measurement [Member] | Other Current Assets [Member]
Assets:
Derivative assets		1,456
Estimate of Fair Value Measurement [Member] | Other Current Liabilities [Member]
Liabilities:
Derivative liabilities	3,500
Significant Other Observable Inputs (Level 2) [Member] | Other Current Assets [Member]
Assets:
Derivative assets		$ 1,456
Significant Other Observable Inputs (Level 2) [Member] | Other Current Liabilities [Member]
Liabilities:
Derivative liabilities	$ 3,500

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Derivative Financial Instruments - Offsetting of Derivative Assets (Detail) - Zero Cost Collars [Member] $ in Thousands	Mar. 31, 2020 USD ($)
Derivative [Line Items]
Asset Derivatives, Gross amounts of recognized assets	$ 3,500
Asset Derivatives, Net amounts of assets presented in the balance sheets	3,500
Asset Derivatives, Gross amounts not offset in the balance sheets, Cash collateral pledged	(2,720)
Asset Derivatives, Net amount	$ 780

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Discontinued Operations and Assets Held for Sale - Additional Information (Detail) - Foundry Services Group And Fab Four [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule Of Disposal Group Not Discontinued Operation Income Statement [Line Items]
Income (loss) from discontinued operations before income tax expense	$ 2,115	$ (743)
Income tax expense		$ 2,151

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Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished goods	$ 8,448	$ 10,087
Semi-finished goods and work-in-process	25,342	28,815
Raw materials	7,916	8,449
Materials in-transit	231
Less: inventory reserve	(4,807)	(5,947)	$ (8,690)	$ (4,845)
Inventories, net	$ 37,130	$ 41,404

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Discontinued Operations and Assets Held for Sale (Tables)

3 Months Ended

Mar. 31, 2020

Discontinued Operations and Assets Held for Sale [Abstract]

Schedule Of Results From Discontinued Operations

The following table summarizes the results from discontinued operations, net of tax, for the three months ended March 31, 2020 and 2019.

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Revenues:
Net sales – Foundry Services Group	$	86,279		$	57,116
Net sales – transitional Fab 3 foundry services		(9,737	)		(7,003	)
Total revenues		76,542			50,113
Cost of sales:
Cost of sales – Foundry Services Group		65,583			53,438
Cost of sales – transitional Fab 3 foundry services		(9,737	)		(7,003	)
Total cost of sales		55,846			46,435
Gross profit		20,696			3,678
Operating expenses:
Selling, general and administrative expenses		5,644			6,034
Research and development expenses		7,403			7,974
Restructuring and other charges		2,115			2,894
Total operating expenses		15,162			16,902
Operating income (loss) from discontinued operations		5,534			(13,224	)
Foreign currency gain, net		2,097			613
Other income		107			86
Income (loss) from discontinued operations before income tax expense		7,738			(12,525	)
Income tax expense		409			45
Income (loss) from discontinued operations, net of tax	$	7,329		$	(12,570	)

Schedule Of Results From Discontinued Operations Balance Sheet

The following table provides a reconciliation of the aggregate carrying amounts of major classes of assets and liabilities relating to the Foundry Services Group business and Fab 4, which are included in assets and liabilities held for sale in the accompanying consolidated balance sheets for each of the periods presented:

	March 31, 2020		December 31, 2019
	(In thousands of US dollars)
Assets
Current assets
Accounts receivable, net	$	40,735	$	48,194
Unbilled accounts receivable, net		9,374		16,463
Inventories, net		34,968		31,863
Other current assets		2,891		3,301
Other assets of the disposal group classified as held for sale		1,461		—
Total current assets held for sale	$	89,429	$	99,821
Property, plant and equipment, net		99,604		109,506
Intangible assets, net		1,202		1,245
Other non-current assets		11,384		12,683
Total assets held for sale	$	201,619	$	223,255
Liabilities
Current liabilities
Accounts payable	$	20,462	$	20,503
Other current liabilities		14,773		16,537
Total current liabilities held for sale	$	35,235	$	37,040
Accrued severance benefits, net		93,121		95,547
Other non-current liabilities		13,657		15,334
Total liabilities held for sale	$	142,013	$	147,921

Schedule Of Results From Discontinued Operations Alternative Cash Flow Information

The following table provides supplemental cash flows information related to discontinued operations:

	Three Months Ended
	March 31, 2020			March 31, 2019
	(In thousands of US dollars)
Significant non-cash operating activities:
Depreciation and amortization	$	5,365		$	5,752
Provision for severance benefits		3,052			1,803
Stock-based compensation		123			106
Investing activities:
Capital expenditures	$	(1,479	)	$	(4,469	)

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Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2020

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

16. Accumulated Other Comprehensive Income (Loss)

Accumulated other comprehensive income (loss) consists of the following as of March 31, 2020 and December 31, 2019, respectively (in thousands):

	March 31, 2020			December 31, 2019
Foreign currency translation adjustments	$	18,046		$	(4,205	)
Derivative adjustments		(3,401	)		1,545
Total	$	14,645		$	(2,660	)

Changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2020 and 2019 are as follows (in thousands):

Three Months Ended March 31, 2020	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(4,205	)	$	1,545		$	(2,660	)
Other comprehensive income (loss) before reclassifications		22,251			(5,004	)		17,247
Amounts reclassified from accumulated other comprehensive loss		—			58			58
Net current-period other comprehensive income (loss)		22,251			(4,946	)		17,305
Ending balance	$	18,046		$	(3,401	)	$	14,645

Three Months Ended March 31, 2019	Foreign currency translation adjustments			Derivative adjustments			Total
Beginning balance	$	(20,061	)	$	(49	)	$	(20,110	)
Other comprehensive income (loss) before reclassifications		7,304			(499	)		6,805
Amounts reclassified from accumulated other comprehensive loss		—			187			187
Net current-period other comprehensive income (loss)		7,304			(312	)		6,992
Ending balance	$	(12,757	)	$	(361	)	$	(13,118	)

There was no income tax impact related to changes in accumulated other comprehensive income (loss) for the three months ended March 31, 2020 and 2019 due to net operating loss carry-forwards available to offset taxable income and full allowance for deferred tax assets.

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Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2020

Payables and Accruals [Abstract]

Summary of Accrued Expenses

Accrued expenses as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020		December 31, 2019
Payroll, benefits and related taxes, excluding severance benefits	$	8,992	$	8,493
Withholding tax attributable to intercompany interest income		23,771		23,371
Interest on senior notes		3,444		8,205
Outside service fees		1,224		1,996
Others		4,058		2,734
Accrued expenses	$	41,489	$	44,799

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Accrued Severance Benefits (Tables)

3 Months Ended

Mar. 31, 2020

Postemployment Benefits [Abstract]

Changes in Accrued Severance Benefits

Changes in accrued severance benefits are as follows (in thousands):

	Three Months Ended
	March 31, 2020			March 31, 2019
Beginning balance	$	53,344		$	55,691
Provisions		2,019			1,314
Severance payments		(1,952	)		(1,496	)
Translation adjustments		(2,801	)		(956	)
		50,610			54,553
Less: Cumulative contributions to severance insurance deposit accounts		(1,557	)		(869	)
The National Pension Fund		(75	)		(87	)
Group severance insurance plan		(213	)		(243	)
Accrued severance benefits, net	$	48,765		$	53,354

Future Benefits Payments to Employees

The Company is liable to pay the following future benefits to its non-executive employees upon their normal retirement age (in thousands):

	Severance benefit
Remainder of 2020	$	369
2021		626
2022		823
2023		580
2024		788
2025		2,201
2026 – 2030		19,439

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Accrued Severance Benefits

3 Months Ended

Mar. 31, 2020

Postemployment Benefits [Abstract]

Accrued Severance Benefits

12. Accrued Severance Benefits

The majority of accrued severance benefits are for employees in the Company’s Korean subsidiary. Pursuant to the Employee Retirement Benefit Security Act of Korea, eligible employees and executive officers with one or more years of service are entitled to severance benefits upon the termination of their employment based on their length of service and rate of pay. As of March 31, 2020, 98% of all employees of the Company were eligible for severance benefits.

Changes in accrued severance benefits are as follows (in thousands):

	Three Months Ended
	March 31, 2020			March 31, 2019
Beginning balance	$	53,344		$	55,691
Provisions		2,019			1,314
Severance payments		(1,952	)		(1,496	)
Translation adjustments		(2,801	)		(956	)
		50,610			54,553
Less: Cumulative contributions to severance insurance deposit accounts		(1,557	)		(869	)
The National Pension Fund		(75	)		(87	)
Group severance insurance plan		(213	)		(243	)
Accrued severance benefits, net	$	48,765		$	53,354

The severance benefits funded through the Company’s National Pension Fund and group severance insurance plan will be used exclusively for payment of severance benefits to eligible employees. These amounts have been deducted from the accrued severance benefit balance.

In July 2018, the Company began contributing to certain severance insurance deposit accounts a certain percentage of severance benefits that are accrued for eligible employees for their services from January 1, 2018. These accounts consist of time deposits and other guaranteed principal and interest, and are maintained at insurance companies, banks or security companies for the benefit of employees. The Company deducts the contributions made to these severance insurance deposit accounts from its accrued severance benefits.

The Company is liable to pay the following future benefits to its non-executive employees upon their normal retirement age (in thousands):

	Severance benefit
Remainder of 2020	$	369
2021		626
2022		823
2023		580
2024		788
2025		2,201
2026 – 2030		19,439

The above amounts were determined based on the non-executive employees’ current salary rates and the number of service years that will be accumulated upon their retirement dates. These amounts do not include amounts that might be paid to non-executive employees that will cease working with the Company before their normal retirement ages.

Korea’s mandatory retirement age is 60 under the Employment Promotion for the Aged Act.

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Accrued Expenses

3 Months Ended

Mar. 31, 2020

Payables and Accruals [Abstract]

Accrued Expenses

8. Accrued Expenses

Accrued expenses as of March 31, 2020 and December 31, 2019 are comprised of the following (in thousands):

	March 31, 2020		December 31, 2019
Payroll, benefits and related taxes, excluding severance benefits	$	8,992	$	8,493
Withholding tax attributable to intercompany interest income		23,771		23,371
Interest on senior notes		3,444		8,205
Outside service fees		1,224		1,996
Others		4,058		2,734
Accrued expenses	$	41,489	$	44,799

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Inventories

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventories

4. Inventories

Inventories as of March 31, 2020 and December 31, 2019 consist of the following (in thousands):

	March 31, 2020			December 31, 2019
Finished goods	$	8,448		$	10,087
Semi-finished goods and work-in-process		25,342			28,815
Raw materials		7,916			8,449
Materials in-transit		231			—
Less: inventory reserve		(4,807	)		(5,947	)
Inventories, net	$	37,130		$	41,404

Changes in inventory reserve for the three months ended March 31, 2020 and 2019 are as follows (in thousands):

	Three Months Ended
	March 31, 2020			March 31, 2019
Beginning balance	$	(5,947	)	$	(4,845	)
Change in reserve
Inventory reserve charged to costs of sales		(1,275	)		(5,073	)
Sale of previously reserved inventory		906			476
		(369	)		(4,597	)
Write off		499			592
Translation adjustments		316			160
Reclassified to assets held for sale		694			—
Ending balance	$	(4,807	)	$	(8,690	)

Inventory reserve represents the Company’s best estimate in value lost due to excessive inventory level, physical deterioration, obsolescence, changes in price levels, or other causes based on individual facts and circumstances. Inventory reserve relates to inventory items including finished goods, semi-finished goods, work-in-process and raw materials. Write off of this reserve is recognized only when the related inventory has been disposed or scrapped.

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Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income Loss (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	$ (14,981)	$ (17,310)
Total other comprehensive income	17,305	6,992
Balance ending	(21,156)	(46,311)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	(4,205)	(20,061)
Other comprehensive income (loss) before reclassifications	22,251	7,304
Total other comprehensive income	22,251	7,304
Balance ending	18,046	(12,757)
Derivative Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	1,545	(49)
Other comprehensive income (loss) before reclassifications	(5,004)	(499)
Amounts reclassified from accumulated other comprehensive loss	58	187
Total other comprehensive income	(4,946)	(312)
Balance ending	(3,401)	(361)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	(2,660)	(20,110)
Other comprehensive income (loss) before reclassifications	17,247	6,805
Amounts reclassified from accumulated other comprehensive loss	58	187
Total other comprehensive income	17,305	6,992
Balance ending	$ 14,645	$ (13,118)

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Accrued Severance Benefits - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2020
Percentage of employees eligible for severance benefits	98.00%
Korea [Member] | Maximum [Member]
Retirement age of employees	60 years

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Contingency [Line Items]
Income tax expenses (benefits)	$ 1,303	$ 796
Income tax expenses	$ (29,775)	$ (20,759)
Korean Subsidiary [Member]
Income Tax Contingency [Line Items]
The net operating income carry forwards of the taxable income	60.00%	60.00%

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Other Current Assets [Member]
Loss Contingencies [Line Items]
Prepayments to suppliers	$ 5,118	$ 6,593

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Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Equity [Abstract]
Income tax related to accumulated other comprehensive loss	$ 0	$ 0

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Accrued Expenses - Summary of Accrued Expenses (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Payroll, benefits and related taxes, excluding severance benefits	$ 8,992	$ 8,493
Withholding tax attributable to intercompany interest income	23,771	23,371
Interest on senior notes	3,444	8,205
Outside service fees	1,224	1,996
Others	4,058	2,734
Accrued expenses	$ 41,489	$ 44,799

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Leases - Supplemental Balance Sheet (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets
Operating lease	$ 1,413	$ 1,876
Total leased assets	1,642	2,134
Current
Operating	1,301	1,625
Non-current
Total lease liabilities	1,653	2,144
Operating Lease Right Of Use Assets [Member]
Assets
Operating lease	1,413	1,876
Property, Plant and Equipment, Net [Member]
Assets
Finance lease	229	258
Current Operating Lease Liabilities [Member]
Current
Operating	1,301	1,625
Other Current Liabilities [Member]
Current
Finance	58	60
Non Current Operating Lease Liabilities [Member]
Non-current
Operating	112	251
Other Noncurrent Liabilities [Member]
Non-current
Finance	$ 182	$ 208

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities
Net loss	$ (23,749)	$ (34,125)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation and amortization	7,935	8,303
Provision for severance benefits	5,071	3,117
Amortization of debt issuance costs and original issue discount	598	571
Loss on foreign currency, net	38,480	11,720
Restructuring and other charges	2,138	2,822
Provision for inventory reserves	570	4,645
Stock-based compensation	885	669
Loss on early extinguishment of long-term borrowings, net		42
Other	107	96
Changes in operating assets and liabilities
Accounts receivable, net	(10,430)	(12,844)
Unbilled accounts receivable, net	6,937	9,726
Inventories	(4,863)	(15,230)
Other receivables	1,982	(4,205)
Other current assets	909	1,836
Accounts payable	1,988	20,874
Other accounts payable	(1,817)	2,797
Accrued expenses	(6,611)	(5,365)
Other current liabilities	1,062	(6,293)
Other non-current liabilities	1,808	1,085
Payment of severance benefits	(2,080)	(2,263)
Other	148	347
Net cash provided by (used in) operating activities	21,068	(11,675)
Cash flows from investing activities
Proceeds from settlement of hedge collateral	4,239	2,242
Payment of hedge collateral	(7,841)
Purchase of property, plant and equipment	(3,351)	(11,207)
Payment for intellectual property registration	(229)	(232)
Collection of guarantee deposits	47	298
Payment of guarantee deposits		(892)
Other	8	(10)
Net cash used in investing activities	(7,127)	(9,801)
Cash flows from financing activities
Repurchase of long-term borrowings		(1,175)
Proceeds from exercise of stock options		48
Acquisition of treasury stock	(1,021)	(2,353)
Repayment of financing related to water treatment facility arrangement	(135)	(143)
Repayment of principal portion of finance lease liabilities	(60)	(59)
Net cash used in financing activities	(1,216)	(3,682)
Effect of exchange rates on cash and cash equivalents	(7,089)	(1,468)
Net increase (decrease) in cash and cash equivalents	5,636	(26,626)
Cash and cash equivalents
Beginning of the period	151,657	132,438
End of the period	157,293	105,812
Supplemental cash flow information
Cash paid for interest	9,522	9,549
Cash paid for income taxes	1,534	1,556
Non-cash investing and financing activities
Property, plant and equipment additions in other accounts payable	$ 687	2,643
Acquisition Of Treasury Stock Related To Tax With holding For Share Based Compensation		$ (232)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	44,160,355	43,851,991
Common stock, shares outstanding	35,054,682	34,800,312
Treasury stock, shares	9,105,673	9,051,679