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Note 3 - Selected Balance Sheet Data - Estimated Future Amortization Expense for Intangible Assets (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
2020 remainder $ 44,807
2021 59,403
2022 57,804
2023 55,938
2024 53,409
Thereafter 291,977
Total $ 563,338