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Pension Plan - Schedule of Estimated Future Benefit Payments which Reflect Expected Future Service (Detail)
$ in Thousands
Feb. 29, 2016
USD ($)
Schedule Of Sale Of Subsidiary [Abstract]  
2017 $ 3,200
2018 3,800
2019 2,700
2020 3,400
2021 4,200
2022 - 2026 $ 16,900