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Goodwill and Intangibles - Intangible Assets - Future Amortization (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Estimated future amortization expense |  |  |
2021 | $ 23,348 |  |
2022 | 18,474 |  |
2023 | 8,858 |  |
2024 | 5,288 |  |
2025 | 4,798 |  |
Thereafter | 1,236 |  |
Total | 62,002 |  |
Intangible assets |  |  |
Unamortized software development costs | 28,512 | $ 22,240 | $ 17,490
Capitalized software costs |  |  |
Intangible assets |  |  |
Unamortized software development costs | $ 7,600 |  |

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- Definition Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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