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Summary Of Significant Accounting Policies (Tables)
 12 Months Ended
Mar. 31, 2013
Summary Of Significant Accounting Policies [Abstract]  
Estimated Useful Life Of Property, Plant And Equipment

 

 

Asset Classification

Estimated Useful Life in Years

Building

40

Process upgrades to the building

10-40

Machinery and equipment

3-10

Furniture and fixtures

3-5

Leasehold improvements

Shorter of the estimated useful life or the remaining lease term

 

Reconciliation Of Numerators And Denominators Of EPS Calculation

 

 

 

 

 

 

 

 

 

 

 

Year ended March 31,

 

 

2013

 

 

2012

 

 

2011

 

 

 

 

 

 

 

 

 

Numerator:

 

 

 

 

 

 

 

 

    Net loss

$
(66,131)

 

$
(136,827)

 

$
(186,284)

Denominator:

 

 

 

 

 

 

 

 

    Weighted-average shares of common stock outstanding

 
53,537 

 

 
51,144 

 

 
47,750 

    Weighted-average shares subject to repurchase

 
(467)

 

 
(302)

 

 
(647)

Shares used in per-share calculation ― basic

 
53,070 

 

 
50,842 

 

 
47,103 

Dilutive effect of employee equity incentive plans

 

 -

 

 

 -

 

 

 -

    Shares used in per-share calculation ― diluted

 
53,070 

 

 
50,842 

 

 
47,103 

Net loss per share ― basic

$
(1.25)

 

$
(2.69)

 

$
(3.95)

Net loss per share ― diluted

$
(1.25)

 

$
(2.69)

 

$
(3.95)