XML 61 R45.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2011
Mar. 31, 2010
Mar. 31, 2012
D
M
Mar. 31, 2011
Mar. 31, 2010
Product Warranty [Line Items]          
Losses (recoveries) of commitments to purchase materials   $ 38,800,000      
Inventory write-down     4,357,000 63,882,000  
Benefit to cost of revenues     800,000    
Losses On Purchase Commitments     (1,299,000) 38,763,000  
Adverse purchase commitments     25,894,000 38,763,000  
Potential loss, minimum     0    
Potential loss, maximum     4,000,000    
Maximum period for hedging intercompany sales of inventory, in months     15    
Forecast period for cash flow hedge accounting to be deemed as ineffective, in days     60    
Impairment charge 1,700,000        
Business Exit Costs     2,200,000    
Payments received from customers     5,200,000    
Percentage of tax benefit likely to be realized upon ultimate settlement     50.00%    
Common equivalent shares not included in the calculation of diluted EPS     2,290,416 2,631,251 688,300
Net foreign currency transaction and hedging gains (losses)     $ 3,100,000 $ 8,000,000 $ (2,500,000)
Minimum [Member]
          
Product Warranty [Line Items]          
Warranty period, in years     1    
Maximum [Member]
          
Product Warranty [Line Items]          
Warranty period, in years     3