CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Net income	$ 365,325	$ 395,281	$ 127,389
Less: Net loss attributable to noncontrolling interests	3,684	0	0
Net income attributable to Microchip Technology	369,009	395,281	127,389
Unrealized holding gains (losses), net of tax effect of $12, $497 and $557, respectively	33,759	(4,377)	2,686
Reclassification of realized transactions, net of tax effect of $12, $776 and $51, respectively	(18,694)	(1,595)	(343)
Change in minimum pension liability, net of tax effect of ($76), $55 and $28, respectively	(127)	88	52
Change in net foreign currency translation adjustment	(5,188)	0	1,439
Other comprehensive income (loss), net of taxes	9,750	(5,884)	3,834
Less: Other comprehensive (income) loss attributable to noncontrolling interests	866	0	0
Other comprehensive income (loss) attributable to Microchip Technology	10,616	(5,884)	3,834
Comprehensive income	375,075	389,397	131,223
Less: Comprehensive loss attributable to noncontrolling interests	4,550	0	0
Comprehensive income attributable to Microchip Technology	$ 379,625	$ 389,397	$ 131,223