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Long-Term Debt - Annual Required Payments of Debt and Contractual Commitments for Interest on Long-term Debt (Detail)
$ in Thousands
Jun. 30, 2017
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
2018 $ 7,203
2019 0
2020 0
2021 0
2022 0
2023 and thereafter 0
Total 7,203
2018 423
2019 0
2020 0
2021 0
2022 0
2023 and thereafter 0
Total $ 423