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Changes in Accumulated Other Comprehensive Loss - The Reclassifications Out of Accumulated Other Comprehensive Loss by Component (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Jun. 30, 2014
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Jun. 30, 2013
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Income before provision for income taxes | $ 3,626 | $ 5,618 |
| Provision for income taxes | 1,234 | 1,810 |
| Net income | 2,392 | 3,808 |
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Reclassifications Out of Accumulated Other Comprehensive Loss [Member] | Amortization of Unrecognized Prior Service Benefit [Member]
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Income before provision for income taxes | 25 | 40 |
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Reclassifications Out of Accumulated Other Comprehensive Loss [Member] | Amortization of Actuarial Loss [Member]
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Income before provision for income taxes | (155) | (261) |
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Reclassifications Out of Accumulated Other Comprehensive Loss [Member] | Pension and Other Postretirement Benefits Items [Member]
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||
| Income before provision for income taxes | (130) | (221) |
| Provision for income taxes | (46) | (78) |
| Net income | $ (84) | $ (143) |