Commitments and Contingencies - Additional Information (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Commitments And Contingencies [Line Items]
Purchase Commitments	$ 17
Stockholder Derivative Action 1
Commitments And Contingencies [Line Items]
Loss Contingency, Name of Defendant	Keh-Shew Lu
Loss Contingency, Lawsuit Filing Date	Mar. 5, 2013
Loss Contingency, Name of Plaintiff	Scherer
Loss Contingency, Allegations	plaintiff alleges that (a) the Board approved awards of stock options to Dr. Keh-Shew Lu, our President and Chief Executive Officer, in 2009, 2010, 2011 and 2012 that exceeded the limitation on the number of shares of the Company’s Common Stock that may be purchased upon the exercise of options granted to any person in any given year under the Company’s 2001 Omnibus Equity Incentive Plan as amended by the stockholders on May 28, 2009; (b) the Company’s disclosures in its 2010, 2011 and 2012 proxy statements regarding the limitation on the number of shares of the Company’s Common Stock that may be purchased upon the exercise of options granted to any person in any given year under the Company’s 2001 Omnibus Equity Incentive Plan as amended by the stockholders on May 28, 2009 were inaccurate; and (c) the Company’s disclosures in its 2010, 2011 and 2012 proxy statements that the grants of stock options to Dr. Lu in 2009, 2010, 2011 and 2012 complied with the terms of the Company’s 2001 Omnibus Equity Incentive Plan as amended by the stockholders on May 28, 2009 were incorrect.
Number of shares as a settlement alternative	100,000
Putative Securities Class Action
Commitments And Contingencies [Line Items]
Loss Contingency, Name of Defendant	Diodes, Inc.
Loss Contingency, Lawsuit Filing Date	Mar. 15, 2013
Loss Contingency, Name of Plaintiff	Local 731 I.B. of T. Excavators and Pavers Pension Trust Fund
Loss Contingency, Allegations	alleges that defendants violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Securities and Exchange Commission Rule 10b-5 promulgated thereunder by making allegedly misleading public statements during the class period regarding the labor market in China and its impact on the Company’s business and prospects.
Stockholder Derivative Action 2
Commitments And Contingencies [Line Items]
Loss Contingency, Name of Defendant	Keh-Shew Lu
Loss Contingency, Lawsuit Filing Date	February 20, 2014
Loss Contingency, Name of Plaintiff	Persson
Loss Contingency, Allegations	on behalf of the Company against its directors, in which plaintiff alleges that the directors breached their fiduciary duties by allowing the Company to make allegedly misleading public statements in 2011 regarding the labor market in China and its impact on the Company’s business and prospects, by failing to maintain internal controls and by selling shares of Diodes stock while allegedly in possession of material nonpublic information regarding the labor market in China and its impact on the Company’s business and prospects.