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Accumulated Other Income (Loss) Components Net of Tax (Table Text Block)
 3 Months Ended
Jun. 30, 2014
Table Text Block Supplement [Abstract]  
Summary of accumulated other comprehensive income (loss)
 
 
Foreign Currency Translation
 
Unrealized Net Gain on Investments
 
Fair Market Value of Cash Flow Hedges
 
Postretirement Benefit Obligation Net Loss
 
Accumulated Other Comprehensive Income (Loss)
 
 
(Unaudited)
 
 
(In thousands)
Balance at March 31, 2014
$
(39,287
 )$
5,991
$
(20,321
 )$
(306
 )$
(53,923
)
Foreign currency translation
 
2,743
 
-
 
-
 
-
 
2,743
Unrealized net gain on investments
 
-
 
17,298
 
-
 
-
 
17,298
Change in fair value of cash flow hedges
 
-
 
-
 
(2,813
 ) 
-
 
(2,813
)
Amounts reclassified from AOCI
 
-
 
-
 
3,647
 
-
 
3,647
Other comprehensive income (loss)
 
2,743
 
17,298
 
834
 
-
 
20,875
Balance at June 30, 2014
$
(36,544
 )$
23,289
$
(19,487
 )$
(306
 )$
(33,048
)