Accumulated Other Comprehensive Loss (Reclassifications out of Accumulated Other Comprehensive Loss to Net Income) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Mar. 31, 2014
|
Mar. 31, 2013
|
Mar. 31, 2012
|
|
Reclassification out of Accumulated Other Comprehensive Income [Line Items] | |||
Tax benefit | $ (148,599) | $ (149,253) | $ (103,919) |
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment
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Reclassification out of Accumulated Other Comprehensive Income [Line Items] | |||
Total before tax | 2,728 | 1,524 | 706 |
Tax benefit | (1,076) | (600) | (287) |
Net of tax | $ 1,652 | $ 924 | $ 419 |