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Comprehensive Income (Loss)
 9 Months Ended
Dec. 31, 2011
Notes To Financial Statements [Abstract]  
Comprehensive Income (Loss)
Comprehensive Income

Comprehensive income includes net income as currently reported under U.S. GAAP and other comprehensive income. Other comprehensive income considers the effects of additional economic events that are not required to be recorded in determining net income, but rather are reported as a separate component of shareholders’ equity. The following table illustrates the components of our comprehensive income:
 
 
 
Three Months Ended December 31,
 
Nine Months Ended December 31,
 
 
2011
 
2010
 
2011
 
2010
Net income
 
$
33,649

 
$
21,765

 
$
91,944

 
$
12,266

Change in cumulative foreign currency translation adjustment
 
(9,823
)
 
793

 
(23,776
)
 
8,935

Amortization of pension and postretirement benefit plans costs, net of taxes
 
(269
)
 
(277
)
 
(809
)
 
(828
)
Unrealized gain (loss) on available for sale securities
 
132

 
109

 
(122
)
 
118

Total comprehensive income
 
$
23,689

 
$
22,390

 
$
67,237

 
$
20,491