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Goodwill, Other Intangible Assets and Long-Lived Assets - Future Amortization Expense (Details)
$ in Thousands
Mar. 31, 2017
USD ($)
Composition of intangibles and amortization expense  
2018 $ 3,362
2019 3,305
2020 3,244
2021 3,056
2022 $ 2,960