Subsequent Events (Lines of Credit) (Details)	12 Months Ended
	Dec. 31, 2011
Line of Credit Facility [Line Items]
Line of Credit Facility, Expiration Date	January 22, 2012
Line of Credit Facility, Covenant Terms	In addition, the Credit Agreement contains certain restrictive and financial covenants, including, but not limited to, the following: (a) the Company shall maintain on a consolidated basis a Fixed Charge Coverage Ratio of not less than 2.00 to 1.0 and a Quick Ratio of not less than 1.50 to 1.0 (excluding the Company’s Notes for both ratios); (b) the Company and its subsidiaries shall not create, incur, assume or suffer to exist any lien upon any of its property, assets or revenues except as specified in the Credit Agreement; (c) the Company and its subsidiaries shall not make any investments except as specified in the Credit Agreement; (d) the Company and its subsidiaries shall not create, incur, assume or suffer to exist any indebtedness except as specified in the Credit Agreement; (e) the Company and its subsidiaries shall not dissolve or merge or consolidate with or into another entity except as specified in the Credit Agreement; (f) the Company and its subsidiaries shall not make any disposition except as specified in the Credit Agreement; (g) the Company and its subsidiaries shall not make any restricted payment, or issue or sell any equity interests, except as specified in the Credit Agreement; (h) the Company and its subsidiaries shall not engage in any material line of business substantially different from those lines of business that are currently conducted by the Company and its subsidiaries; (i) the Company and its subsidiaries shall not enter into any transaction of any kind with any affiliate of the Company except as specified in the Credit Agreement; (j) the Company and its subsidiaries shall not enter into certain burdensome contractual obligations except as specified in the Credit Agreement; and (k) the Company and its subsidiaries shall not use the proceeds of any credit extension to purchase or carry margin stock or to extend credit to others for the purpose of purchasing or carrying margin stock or to refund indebtedness originally incurred for such purpose.
Fifth Amendment [Member]
Line of Credit Facility [Line Items]
Credit Facility Amendment Date	February 1, 2012
Line of Credit Facility, Affiliated Borrower	Diodes International B.V. (the “BV Entity”)
Line of Credit Facility, Expiration Date	January 17, 2013
Line of Credit facility, Interest Rate Terms	modifies the provisions for the Eurocurrency Rate by allowing for Interest Periods of 30, 60 or 90 days, rather than requiring all Eurocurrency Rate determinations to be on Interest Periods of one month, and by reducing the interest rate for Eurocurrency Rate committed loans from the Eurocurrency Rate plus 3.0% to the Eurocurrency Rate plus 2.5%. bears interest at a rate per annum equal to the Eurocurrency Rate plus 1.25% per annum
Line of Credit Facility, Covenant Terms	The Fifth Amendment adds as additional financial covenants that the Interest Coverage Ratio (as defined) will be at least 3.0 to 1.0 on a consolidated basis, and that the Funded Debt to EBITDA Ratio (as defined) will not exceed 2.50 to 1.0 on a consolidated basis. The Fifth Amendment deletes a financial covenant relating to the Fixed Charge Coverage Ratio.