CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Total Flex Ltd. Shareholders' Equity	Ordinary Shares	Accumulated deficit	Unrealized gain (loss) on derivative instruments and other	Foreign currency translation adjustments	Total accumulated other comprehensive loss	Noncontrolling Interests
BALANCE at Mar. 31, 2015	$ 2,396,250	$ 2,360,814	$ 6,877,612	$ (4,336,293)	$ (68,266)	$ (112,239)	$ (180,505)	$ 35,436
BALANCE (shares) at Mar. 31, 2015			563,323,000
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost	(412,819)	(412,819)	$ (412,819)
Repurchase of Flex Ltd. ordinary shares at cost (shares)			(37,314,000)
Exercise of stock options	$ 61,764	61,278	$ 61,278					486
Exercise of stock options (shares)	10,006,774		10,244,000
Issuance of Flex Ltd. vested shares under share bonus awards (shares)			8,570,000
Premium on acquired equity plan	$ 799	799	$ 799
Net income	437,366	444,081		444,081				(6,715)
Stock-based compensation, net of tax	77,580	72,129	72,129					5,451
Total other comprehensive loss	44,590	44,590			26,744	17,846	44,590
BALANCE at Mar. 31, 2016	2,605,530	2,570,872	$ 6,598,999	(3,892,212)	(41,522)	(94,393)	(135,915)	34,658
BALANCE (shares) at Mar. 31, 2016			544,823,000
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost	(345,782)	(345,782)	$ (345,782)
Repurchase of Flex Ltd. ordinary shares at cost (shares)			(25,125,000)
Exercise of stock options	$ 13,048	12,438	$ 12,438					610
Exercise of stock options (shares)	1,573,356		2,283,000
Issuance of Flex Ltd. vested shares under share bonus awards (shares)			9,313,000
Issuance of subsidiary shares	$ 9,306	0	$ 0					9,306
Net income	311,072	319,564		319,564				(8,492)
Stock-based compensation, net of tax	77,330	79,669	79,669					(2,339)
Total other comprehensive loss	7,772	7,772			9,096	(1,324)	7,772
BALANCE at Mar. 31, 2017	$ 2,678,276	2,644,533	$ 6,345,324	(3,572,648)	(32,426)	(95,717)	(128,143)	33,743
BALANCE (shares) at Mar. 31, 2017	531,294,774		531,294,000
Increase (Decrease) in Shareholders' Equity
Repurchase of Flex Ltd. ordinary shares at cost	$ (180,050)	(180,050)	$ (180,050)
Repurchase of Flex Ltd. ordinary shares at cost (shares)			(10,829,000)
Exercise of stock options	$ 3,030	2,774	$ 2,774					256
Exercise of stock options (shares)	125,949		667,000
Issuance of Flex Ltd. vested shares under share bonus awards (shares)			6,946,000
Issuance of subsidiary shares	$ 63,363							63,363
Net income	420,961	428,534		428,534				(7,573)
Stock-based compensation, net of tax	81,333	80,484	$ 80,484					849
Deconsolidation of subsidiary entity	(90,638)							(90,638)
Total other comprehensive loss	42,298	42,298			(3,320)	45,618	42,298
BALANCE at Mar. 31, 2018	$ 3,018,573	$ 3,018,573	$ 6,248,532	$ (3,144,114)	$ (35,746)	$ (50,099)	$ (85,845)	$ 0
BALANCE (shares) at Mar. 31, 2018	528,078,493		528,078,000