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Summary of Significant Accounting Policies (Details Textuals) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Summary of Significant Accounting Policies (Textuals) [Abstract] |  |  |
Amortization expense | $ 4.1 | $ 3.9 |
Future Amortization Expense Current Year | 21.6 |  |
Aggregate amortization expense for 2020 | 21.1 |  |
Aggregate amortization expense for 2021 | 20.3 |  |
Aggregate amortization expense for 2022 | 19.8 |  |
Aggregate amortization expense for 2023 | 18.8 |  |
Aggregate amortization expense for 2024 | 16.6 |  |
Purchased Intangible Amortization, Gross | 3.8 |  | $ 3.7
Purchased intangible amortization, net of tax | 2.9 |  | $ 2.8
Amortization expense associated with capitalized software | 9.8 | 10.0 |
Share - based compensation expense | $ 4.6 | $ 4.4 |

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