Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Nov. 04, 2015
Document And Entity Information [Abstract]
Document type	10-Q
Document period end date	Sep. 30, 2015
Amendment flag	false
Entity registrant name	DIODES INC /DEL/
Entity central index key	0000029002
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Entity common stock shares outstanding		48,590,862
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	DIOD