Document and Entity Information	3 Months Ended
	Mar. 31, 2015	May 04, 2015
Document And Entity Information [Abstract]
Document type	10-Q
Document period end date	Mar. 31, 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		47,974,864
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	DIOD