Bank Credit Agreements and Other Short-Term and Long-Term Debt (Lines of credit) (Details) (USD $)			12 Months Ended				12 Months Ended					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Revolver [Member]	Dec. 31, 2013 Swing Line Sublimit [Member]	Dec. 31, 2013 Letter Of Credit Sublimit [Member]	Dec. 31, 2013 Alternative Currency Sublimit [Member]	Dec. 31, 2013 Term Loan [Member]	Dec. 31, 2013 Unsecured [Member]	Dec. 31, 2012 Unsecured [Member]	Dec. 31, 2013 Secured [Member]	Dec. 31, 2012 Secured [Member]	Dec. 31, 2013 Fifth Amendment [Member] Term Loan [Member]	Dec. 31, 2013 Sixth Amendment [Member] Term Loan [Member]
Line of Credit Facility [Line Items]
Lines of credit maximum borrowing capacity	$ 112,023,000		$ 300,000,000	$ 10,000,000	$ 10,000,000	$ 20,000,000		$ 112,023,000		$ 0
Debt Instrument, Issuance Date			Jan. 08, 2013				Nov. 25, 2009
Credit Facility Amendment Date												2012-02-01	2012-04-30
Line of Credit Facility, Covenant Terms			The Credit Agreement contains certain financial and non-financial covenants, including, but not limited to, a maximum Consolidated Leverage Ratio, a minimum Consolidated Fixed Charge Coverage Ratio, and restrictions on liens, indebtedness, investments, fundamental changes, dispositions, and restrictive payments (including dividends).
Lines of credit unused and available	220,000,000
Line Of Credit Facility Credit Used For Guarantee	7,000,000
Line of Credit Facility, Expiration Date			Jan. 08, 2018
Line of Credit Facility, Affiliated Borrower			Diodes International B.V.
Line of Credit facility, Interest Rate Terms			Borrowed amounts bear interest at a rate per annum equal to the sum of (a) the highest of (i) the Federal Funds Rate plus ½ of 1.00%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Bank of America as its “prime rate,” and (iii) the Eurocurrency Rate plus 1.00%, plus (b) an amount between 0.50% per annum and 1.25% per annum, based upon the Borrowers’ and their subsidiaries’ Consolidated Leverage Ratio. Eurocurrency loans bear interest at LIBOR plus an amount between 1.50% and 2.25% per annum, based upon the Borrowers’ and their subsidiaries’ Consolidated Leverage Ratio.
Term Loan, Interest Rate Terms			Borrowed amounts bear interest at a rate per annum equal to the sum of (a) the highest of (i) the Federal Funds Rate plus ½ of 1.00%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Bank of America as its “prime rate,” and (iii) the Eurocurrency Rate plus 1.00%, plus (b) an amount between 0.50% per annum and 1.25% per annum, based upon the Borrowers’ and their subsidiaries’ Consolidated Leverage Ratio. Eurocurrency loans bear interest at LIBOR plus an amount between 1.50% and 2.25% per annum, based upon the Borrowers’ and their subsidiaries’ Consolidated Leverage Ratio.
Lines of credit amount outstanding	$ 5,814,000	$ 7,629,000						$ 5,814,000	$ 5,629,000	$ 0	$ 2,000,000