Nature of Operations, Basis of Presentation and Recently Issued Accounting Pronouncements	9 Months Ended
Sep. 30, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Nature of Operations, Basis of Presentation and Recently Issued Accounting Pronouncements	NOTE 1 – Nature of Operations, Basis of Presentation and Recently Issued Accounting Pronouncements Nature of Operations Diodes Incorporated, together with its subsidiaries (collectively, the “Company,” “we” or “our”) (Nasdaq: DIOD), is a leading global manufacturer and supplier of high-quality, application-specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets. We serve the consumer electronics, computing, communications, industrial, and automotive markets. Our products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers. Our corporate headquarters and Americas’ sales office are located in Plano, Texas and Milpitas, California. Design, marketing, and engineering centers are located in Plano; Milpitas; Taipei, Taoyuan City and Zhubei City, Taiwan; Manchester, England; and Neuhaus, Germany. Our wafer fabrication facilities are located in Manchester, with an additional facility located in Shanghai, China. We are in the process of shutting down our Lee’s Summit, Missouri wafer fabrication facility (“KFAB”) and transferring its wafer fabrication operation to other Company-owned wafer fabrication plants and external foundries (See Note 11). We have assembly and test facilities located in Shanghai, Jinan, Chengdu, and Yangzhou, China, as well as in Hong Kong, Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; and Munich, Germany, with support offices throughout the world. Basis of Presentation The condensed consolidated financial data at December 31, 2016 is derived from audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2016 filed with the Securities and Exchange Commission (“SEC”) on February 27, 2017 (“Form 10-K”). The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. They do not include all information and footnotes necessary for a fair presentation of financial position, operating results and cash flows in conformity with GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Form 10-K. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the operating results for the period presented have been included in the interim period. Operating results for the three and nine months ended September 30, 2017 are not necessarily indicative of the results that may be expected for other interim periods or the year ending December 31, 2017. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. As permitted under GAAP, interim accounting for certain expenses, including income taxes, are based on full year forecasts. For interim financial reporting purposes, income taxes are recorded based upon estimated annual effective income tax rates taking into consideration discrete items occurring in a quarter. Dollar amounts and share amounts are presented in thousands, except per share amounts, unless otherwise noted. Certain prior year’s balances have been reclassified to conform to the current financial statement presentation. Recently Issued Accounting Pronouncements The Financial Accounting Standards Board (“FASB”) issued the following Accounting Standards Updates (“ASU”) which could have potential impact on the Company’s financial statements: ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). This standard is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This standard sets forth a five-step revenue recognition model which replaces the current revenue recognition guidance in its entirety and is intended to eliminate numerous industry-specific pieces of revenue recognition guidance. To further assist with adoption and implementation of ASU 2014-09, the FASB issued the following ASUs: •ASU 2016-08 (Issued March 2016) — Principal versus Agent Consideration (Reporting Revenue Gross versus Net) •ASU 2016-10 (Issued April 2016) — Identifying Performance Obligations and Licensing •ASU 2016-12 (Issued May 2016) — Narrow-Scope Improvements and Practical Expedients •ASU 2016-20 (Issued December 2016) — Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers This standard is effective in the first quarter of 2018. We will adopt this standard using the modified retrospective method. We have established a cross-functional coordinated implementation team to implement ASU 2014-09. We have completed our initial diagnostic assessment and are in the process of identifying and implementing changes to our systems and processes to meet the reporting and disclosure requirements. We continue to engage outside consultants to assist us in determining the effect this standard will have on our financial statements, to assist us in making necessary changes in our accounting practices and to assist us in making certain we are capturing the necessary detail to fulfill the disclosure requirements promulgated in this standard. Based upon our initial assessment we believe the key revenue streams will be distribution and OEM sales, which combined comprise the majority of our business. The Company has not identified any contracts with customers containing multiple performance obligations. The Company has identified a number of variable consideration components within our contracts with customers and is in process of quantifying the overall impact related to the consideration to which the entity is entitled. The Company expects adoption of this new standard will not have a material impact on its income statement and balance sheet. ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”) - In February 2016, the FASB issued ASU 2016-02, which amends the accounting treatment for leases. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. Early adoption is permitted. The Company is currently evaluating the impact that the adoption of ASU 2016-02 may have on its consolidated financial statements and has not elected early adoption as of the period ended September 30, 2017. During the second quarter of 2017 we engaged outside accounting consultants to assist us in the implementation of this new standard. The Company is in the process of assessing its outstanding leases. ASU No. 2016-09, Compensation—Stock Compensation (Topic 718) Improvements to Employee Share-Based Payment Accounting - In March 2016, the FASB issued guidance to simplify the accounting for share-based payment transactions by requiring all excess tax benefits and deficiencies to be recognized in income tax expense or benefit in earnings, thus eliminating the requirement to classify the excess tax benefit and deficiencies as additional paid-in capital. Under the new guidance, an entity makes an accounting policy election to either estimate the expected forfeiture awards or account for forfeitures as they occur. We adopted ASU No. 2016-09 during the first quarter of 2017 and as a result will account for forfeitures as they occur. The effect of the adoption related to the income tax portion was an increase of $4.8 million to retained earnings and to deferred income tax assets. The effect of the adoption related to forfeitures was an increase to additional paid in capital of $0.8 million, an increase to deferred tax assets of $0.3 million and a decrease to retained earnings of $0.5 million. ASU No. 2017-09, Compensation – Stock Compensation (Topic 718) Scope of Modification Accounting - In May 2017, the FASB issued guidance to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective prospectively for all companies for annual periods beginning on or after December 15, 2017. Early adoption is permitted. We early adopted this standard in the third quarter of 2017. Adoption of this standard had no impact on the Company’s financial statements. ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities – In August 2017, the FASB issued guidance that eliminates the requirement to separately measure and report hedge ineffectiveness. The guidance is effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those years. Early adoption is permitted in any interim period or fiscal period before the effective date. The Company adopted ASU No. 2017-12 during the third quarter of 2017. In accordance with ASU 2017-12, the Company recognizes all reclassifications out of other comprehensive income (other than those related to a hedged transaction becoming probable of not occurring) in the same income statement line item in which the earnings effect of the hedged item is being presented, which is consistent with the Company’s current policy. Adoption of this standard had no impact on the Company’s financial statements.

NOTE 1 – Nature of Operations, Basis of Presentation and Recently Issued Accounting Pronouncements

Nature of Operations

Diodes Incorporated, together with its subsidiaries (collectively, the “Company,” “we” or “our”) (Nasdaq: DIOD), is a leading global manufacturer and supplier of high-quality, application-specific standard products within the broad discrete, logic, analog and mixed-signal semiconductor markets. We serve the consumer electronics, computing, communications, industrial, and automotive markets. Our products include diodes, rectifiers, transistors, MOSFETs, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices, including LED drivers, AC-DC converters and controllers, DC-DC switching and linear voltage regulators, and voltage references along with special function devices, such as USB power switches, load switches, voltage supervisors, and motor controllers. Our corporate headquarters and Americas’ sales office are located in Plano, Texas and Milpitas, California. Design, marketing, and engineering centers are located in Plano; Milpitas; Taipei, Taoyuan City and Zhubei City, Taiwan; Manchester, England; and Neuhaus, Germany. Our wafer fabrication facilities are located in Manchester, with an additional facility located in Shanghai, China. We are in the process of shutting down our Lee’s Summit, Missouri wafer fabrication facility (“KFAB”) and transferring its wafer fabrication operation to other Company-owned wafer fabrication plants and external foundries (See Note 11). We have assembly and test facilities located in Shanghai, Jinan, Chengdu, and Yangzhou, China, as well as in Hong Kong, Neuhaus and Taipei. Additional engineering, sales, warehouse, and logistics offices are located in Taipei; Hong Kong; Manchester; Shanghai; Shenzhen, China; Seongnam-si, South Korea; and Munich, Germany, with support offices throughout the world.

Basis of Presentation

The condensed consolidated financial data at December 31, 2016 is derived from audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2016 filed with the Securities and Exchange Commission (“SEC”) on February 27, 2017 (“Form 10-K”). The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. They do not include all information and footnotes necessary for a fair presentation of financial position, operating results and cash flows in conformity with GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Form 10-K. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair presentation of the operating results for the period presented have been included in the interim period. Operating results for the three and nine months ended September 30, 2017 are not necessarily indicative of the results that may be expected for other interim periods or the year ending December 31, 2017.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. As permitted under GAAP, interim accounting for certain expenses, including income taxes, are based on full year forecasts. For interim financial reporting purposes, income taxes are recorded based upon estimated annual effective income tax rates taking into consideration discrete items occurring in a quarter. Dollar amounts and share amounts are presented in thousands, except per share amounts, unless otherwise noted. Certain prior year’s balances have been reclassified to conform to the current financial statement presentation.

Recently Issued Accounting Pronouncements

The Financial Accounting Standards Board (“FASB”) issued the following Accounting Standards Updates (“ASU”) which could have potential impact on the Company’s financial statements:

ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). This standard is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This standard sets forth a five-step revenue recognition model which replaces the current revenue recognition guidance in its entirety and is intended to eliminate numerous industry-specific pieces of revenue recognition guidance. To further assist with adoption and implementation of ASU 2014-09, the FASB issued the following ASUs:

•ASU 2016-08 (Issued March 2016) — Principal versus Agent Consideration (Reporting Revenue Gross versus Net)

•ASU 2016-10 (Issued April 2016) — Identifying Performance Obligations and Licensing

•ASU 2016-12 (Issued May 2016) — Narrow-Scope Improvements and Practical Expedients

•ASU 2016-20 (Issued December 2016) — Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers

This standard is effective in the first quarter of 2018. We will adopt this standard using the modified retrospective method. We have established a cross-functional coordinated implementation team to implement ASU 2014-09. We have completed our initial diagnostic assessment and are in the process of identifying and implementing changes to our systems and processes to meet the reporting and disclosure requirements. We continue to engage outside consultants to assist us in determining the effect this standard will have on our financial statements, to assist us in making necessary changes in our accounting practices and to assist us in making certain we are capturing the necessary detail to fulfill the disclosure requirements promulgated in this standard.

Based upon our initial assessment we believe the key revenue streams will be distribution and OEM sales, which combined comprise the majority of our business. The Company has not identified any contracts with customers containing multiple performance obligations. The Company has identified a number of variable consideration components within our contracts with customers and is in process of quantifying the overall impact related to the consideration to which the entity is entitled. The Company expects adoption of this new standard will not have a material impact on its income statement and balance sheet.

ASU No. 2016-02, Leases (Topic 842) (“ASU 2016-02”) - In February 2016, the FASB issued ASU 2016-02, which amends the accounting treatment for leases. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Lessees (for capital and operating leases) and lessors (for sales-type, direct financing, and operating leases) must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The modified retrospective approach would not require any transition accounting for leases that expired before the earliest comparative period presented. Lessees and lessors may not apply a full retrospective transition approach. Early adoption is permitted. The Company is currently evaluating the impact that the adoption of ASU 2016-02 may have on its consolidated financial statements and has not elected early adoption as of the period ended September 30, 2017. During the second quarter of 2017 we engaged outside accounting consultants to assist us in the implementation of this new standard. The Company is in the process of assessing its outstanding leases.

ASU No. 2016-09, Compensation—Stock Compensation (Topic 718) Improvements to Employee Share-Based Payment Accounting - In March 2016, the FASB issued guidance to simplify the accounting for share-based payment transactions by requiring all excess tax benefits and deficiencies to be recognized in income tax expense or benefit in earnings, thus eliminating the requirement to classify the excess tax benefit and deficiencies as additional paid-in capital. Under the new guidance, an entity makes an accounting policy election to either estimate the expected forfeiture awards or account for forfeitures as they occur. We adopted ASU No. 2016-09 during the first quarter of 2017 and as a result will account for forfeitures as they occur. The effect of the adoption related to the income tax portion was an increase of $4.8 million to retained earnings and to deferred income tax assets. The effect of the adoption related to forfeitures was an increase to additional paid in capital of $0.8 million, an increase to deferred tax assets of $0.3 million and a decrease to retained earnings of $0.5 million.

ASU No. 2017-09, Compensation – Stock Compensation (Topic 718) Scope of Modification Accounting - In May 2017, the FASB issued guidance to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification. Under the new guidance, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective prospectively for all companies for annual periods beginning on or after December 15, 2017. Early adoption is permitted. We early adopted this standard in the third quarter of 2017. Adoption of this standard had no impact on the Company’s financial statements.

ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities – In August 2017, the FASB issued guidance that eliminates the requirement to separately measure and report hedge ineffectiveness. The guidance is effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within those years. Early adoption is permitted in any interim period or fiscal period before the effective date. The Company adopted ASU No. 2017-12 during the third quarter of 2017. In accordance with ASU 2017-12, the Company recognizes all reclassifications out of other comprehensive income (other than those related to a hedged transaction becoming probable of not occurring) in the same income statement line item in which the earnings effect of the hedged item is being presented, which is consistent with the Company’s current policy. Adoption of this standard had no impact on the Company’s financial statements.