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v3.3.1.900

Fair Value Measurements (Financial instruments level within the fair value hierarchy) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Mar. 31, 2015
--- | --- | ---
Assets: |  |
Short-term investments | $ 557,879 | $ 460,762
Fixed maturities - available for sale | 1,421,727 | 1,262,012
Preferred stock | 18,170 | 18,296
Common stock | 24,100 | 24,654
Derivatives | 1,906 | 4,876
Total | $ 2,023,782 | $ 1,770,600
Liabilities: |  |
Guaranteed residual values of TRAC leases |  |
Derivatives | $ 15,596 | $ 24,484
Total | 15,596 | 24,484
Level 1 [Member] |  |
Assets: |  |
Short-term investments | 557,879 | 460,762
Fixed maturities - available for sale | 1,132,444 | 967,986
Preferred stock | 18,170 | 18,296
Common stock | 24,100 | 24,654
Derivatives | 1,906 | 4,876
Total | $ 1,734,499 | $ 1,476,574
Liabilities: |  |
Guaranteed residual values of TRAC leases |  |
Derivatives |  |
Total |  |
Level 2 [Member] |  |
Assets: |  |
Short-term investments |  |
Fixed maturities - available for sale | $ 288,942 | $ 293,022
Preferred stock |  |
Common stock |  |
Derivatives |  |
Total | $ 288,942 | $ 293,022
Liabilities: |  |
Guaranteed residual values of TRAC leases |  |
Derivatives | $ 15,596 | $ 24,484
Total | $ 15,596 | $ 24,484
Level 3 [Member] |  |
Assets: |  |
Short-term investments |  |
Fixed maturities - available for sale | $ 341 | $ 1,004
Preferred stock |  |
Common stock |  |
Derivatives |  |
Total | $ 341 | $ 1,004
Liabilities: |  |
Guaranteed residual values of TRAC leases |  |
Derivatives |  |
Total |  |

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