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Other Comprehensive Income (Loss) Amounts Reclassified from AOCI (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012
Reclassification Adjustment for sales of available-for-sale securities, net of tax | $ 0 | $ 0 | $ 507 | $ 0
Reclassification adjustment for termination of pension plan, net of tax | (432) | 0 | (432) | 0
Total reclassifications out of OCI | $ (432) |  | $ 75 |

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