Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 04, 2015
Document And Entity Information [Abstract]
Document type	10-Q
Document period end date	Jun. 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		48,601,019
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Trading Symbol	DIOD