Net income per common share (Tables)

12 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Schedule computation of basic and diluted earnings per share

The following table sets forth the computation of basic and diluted net income per common share (in thousands, except per share amounts):

	Year ended March 31,
	2015		2014		2013
Net income attributable to Microchip Technology	$	369,009	$	395,281	$	127,389
Weighted average common shares outstanding	200,937		198,291		194,595
Dilutive effect of stock options and RSUs	3,642		3,910		3,650
Dilutive effect of convertible debt	18,982		15,429		7,531
Weighted average common and potential common shares outstanding	223,561		217,630		205,776
Basic net income per common share attributable to Microchip Technology stockholders	$	1.84	$	1.99	$	0.65
Diluted net income per common share attributable to Microchip Technology stockholders	$	1.65	$	1.82	$	0.62