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Commitments and Contingencies (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Nov. 30, 2016 USD ($) | May 31, 2016 USD ($) | Feb. 29, 2016 USD ($) | Nov. 30, 2015 USD ($) | Nov. 30, 2016 USD ($) | Nov. 30, 2015 USD ($) | Jan. 22, 2016 item
Accrual for warranty returns |  |  |  |  |  |  |
Beginning balance | $ 19,459 | $ 20,622 | $ 23,538 | $ 20,797 | $ 20,622 | $ 23,553 |
Additions to the accrual | 14,858 |  |  | 17,127 | 43,052 | 43,885 |
Reductions of the accrual - payments and credits issued | (12,457) |  |  | (14,386) | (41,814) | (43,900) |
Ending balance | $ 21,860 |  | 20,622 | $ 23,538 | $ 21,860 | $ 23,538 |
Minimum |  |  |  |  |  |  |
Accrual for warranty returns |  |  |  |  |  |  |
Product warranty period |  |  |  |  | 2 years |  |
Maximum |  |  |  |  |  |  |
Accrual for warranty returns |  |  |  |  |  |  |
Product warranty period |  |  |  |  | 5 years |  |
Thermometer Patent Litigation | Litigation |  |  |  |  |  |  |
Commitments and contingencies |  |  |  |  |  |  |
Number of models | item |  |  |  |  |  |  | 2
Charge including legal fees and other related expenses |  |  | 17,830 |  |  |  |
Charge including legal fees and other related expenses, after tax |  |  | $ 17,790 |  |  |  |
Amount of additional pre-judgment compensation |  | $ 1,470 |  |  |  |  |

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