Equity Incentive Plans (Notes)

3 Months Ended

Jun. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity incentive plans

Equity Incentive Plans

Share-Based Compensation Expense

The following table presents the details of the Company's share-based compensation expense (amounts in thousands):

	Three Months Ended
	June 30,
	2012			2011
Cost of sales	$	1,310	(1)	$	1,399	(1)
Research and development	4,032			3,413
Selling, general and administrative	4,644			4,212
Pre-tax effect of share-based compensation	9,986			9,024
Income tax benefit	1,322			1,168
Net income effect of share-based compensation	$	8,664		$	7,856

(1) During the three months ended June 30, 2012, $1.7 million of share-based compensation expense was capitalized to inventory and $1.3 million of previously capitalized share-based compensation expenses in inventory was sold.  During the three months ended June 30, 2011, $1.7 million of share-based compensation expense was capitalized to inventory and $1.4 million of previously capitalized share-based compensation expense in inventory was sold.

The amount of unearned share-based compensation currently estimated to be expensed in the remainder of fiscal 2013 through fiscal 2017 related to unvested share-based payment awards at June 30, 2012 is $70.1 million.  The weighted average period over which the unearned share-based compensation is expected to be recognized is approximately 2.02 years.

Combined Incentive Plan Information

The total intrinsic value of restricted stock units (RSUs) which vested during the three months ended June 30, 2012 was $9.8 million.  The aggregate intrinsic value of RSUs outstanding at June 30, 2012 was $182.8 million, calculated based on the closing price of the Company's common stock of $33.08 per share on June 30, 2012.  At June 30, 2012, the weighted average remaining expense recognition period was 2.04 years.

The weighted average fair value per share of the RSUs awarded is calculated based on the fair market value of the Company's common stock on the respective grant dates discounted for the Company's expected dividend yield.  The weighted average fair value per share of RSUs awarded in the three-month period ended June 30, 2012 was $31.35.  The weighted average fair value per share of RSUs awarded in the three-month period ended June 30, 2011 was $32.95.

The total intrinsic value of options exercised during the three months ended June 30, 2012 was $2.5 million.  This intrinsic value represents the difference between the fair market value of the Company's common stock on the date of exercise and the exercise price of each equity award.

The aggregate intrinsic value of options outstanding and options exercisable at June 30, 2012 was $24.7 million.  The aggregate intrinsic values were calculated based on the closing price of the Company's common stock of $33.08 per share on June 30, 2012.

As of June 30, 2012 and June 30, 2011, the number of option shares exercisable was 3,077,498 and 4,696,218, respectively, and the weighted average exercise price per share was $25.13 and $25.16, respectively.

There were no stock options granted in either of the three months ended June 30, 2012 and June 30, 2011.