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Adjusted Cost and Estimated Market Value Available-for-Sale Investment (Table Text Block) | 3 Months Ended
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Jun. 30, 2014
Other than temporary impairment credit losses recognized in earnings [Abstract] |
Adjusted Cost and Estimated Market Value of Available-for-sale Investments |
|  | June 30, 2014 |  | March 31, 2014
|  | Amortized Cost |  | Estimated Market Value |  | Amortized Cost |  | Estimated Market Value
|  | (Unaudited) |  |
|  | (In thousands)
Due in one year or less | $ | 24,809 | $ | 25,355 | $ | 20,235 | $ | 20,475
Due after one year through five years |  | 205,496 |  | 216,743 |  | 185,447 |  | 194,563
Due after five years through ten years |  | 484,926 |  | 499,837 |  | 350,048 |  | 350,953
Due after ten years |  | 413,394 |  | 416,298 |  | 531,645 |  | 521,289
|  | 1,128,625 |  | 1,158,233 |  | 1,087,375 |  | 1,087,280
Mortgage backed securities |  | 15,335 |  | 15,357 |  | 12,425 |  | 12,187
Redeemable preferred stocks |  | 17,447 |  | 17,204 |  | 18,445 |  | 17,533
Common stocks |  | 18,570 |  | 22,518 |  | 17,299 |  | 21,275
| $ | 1,179,977 | $ | 1,213,312 | $ | 1,135,544 | $ | 1,138,275

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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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