CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total Diodes Incorporated Stockholders' Equity	Noncontrolling Interest
BALANCE at Dec. 31, 2016	$ 820,467	$ 32,919	$ (29,023)	$ 354,574	$ 530,215	$ (112,666)	$ 776,019	$ 44,448
Common stock shares beginning at Dec. 31, 2016		49,376,000	(1,157,000)
Total comprehensive income	29,452				(1,805)	29,186	27,381	2,071
Noncontrolling interests	476			(165)			(165)	641
Dividends to noncontrolling interest	(4,746)							(4,746)
Adoption of new accounting standard, ASU 2016-09	5,048			771	4,277		5,048
Common stock issued for share-based plans	13,606	$ 808		12,798			13,606
Common stock issued for share-based plans, shares		1,211,000
Stock buyback	$ (8,745)		$ (8,745)				(8,745)
Stock buyback, shares	(300,000)		(300,000)
Share-based compensation	$ 18,638			18,638			18,638
Tax related to net share settlement	(278)			(278)			(278)
BALANCE at Dec. 31, 2017	873,918	$ 33,727	$ (37,768)	386,338	532,687	(83,480)	831,504	42,414
Common stock shares ending at Dec. 31, 2017		50,587,000	(1,457,000)
Total comprehensive income	87,040				104,021	(18,366)	85,655	1,385
Contributions from noncontrolling interests	4,902							4,902
Dividends to noncontrolling interest	(2,732)							(2,732)
Common stock issued for share-based plans	$ 4,861	$ 727		4,134			4,861
Common stock issued for share-based plans, shares		1,091,000
Stock buyback, shares	0
Share-based compensation	$ 20,736			20,736			20,736
Tax related to net share settlement	(11,293)			(11,293)			(11,293)
BALANCE at Dec. 31, 2018	$ 977,432	$ 34,454	$ (37,768)	399,915	636,708	(101,846)	931,463	45,969
Common stock shares ending at Dec. 31, 2018	50,221,035	51,678,000	(1,457,000)
Total comprehensive income	$ 147,822				153,250	(6,293)	146,957	865
Contributions from noncontrolling interests	3,343							3,343
Dividends to noncontrolling interest	(3,818)							(3,818)
Common stock issued for share-based plans	$ 11,901	$ 657		11,244			11,901
Common stock issued for share-based plans, shares		986,000
Stock buyback, shares	0
Share-based compensation	$ 20,535			20,535			20,535
Tax related to net share settlement	(4,432)			(4,432)			(4,432)
BALANCE at Dec. 31, 2019	$ 1,152,783	$ 35,111	$ (37,768)	$ 427,262	$ 789,958	$ (108,139)	$ 1,106,424	$ 46,359
Common stock shares ending at Dec. 31, 2019	51,206,969	52,664,000	(1,457,000)