v2.4.0.8

Derivative Instruments (Details)	6 Months Ended
	Sep. 30, 2014
Derivative [Line Items]
Percentage Of Company Sales Denominated In Us Dollars	99.00%

X

- Definition

The percentage of the Company's transactions that are denominated in U.S. dollars.

+ References

No definition available.

+ Details

Name:	mchp_PercentageOfCompanySalesDenominatedInUsDollars
Namespace Prefix:	mchp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration