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Leases (Narrative) (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 USD ($) | Jul. 02, 2019 ft² | Dec. 31, 2018 USD ($)
Lease [Line Items] |  |  |
Future minimum rental commitments |  |  | $ 91,841
2019 |  |  | 18,992
2020 |  |  | 18,365
2021 |  |  | 9,469
2022 |  |  | 9,180
2023 |  |  | 8,919
Thereafter |  |  | $ 26,916
Area of property | ft² |  | 315,000 |
Annual lease expense | $ 7,800 |  |
Monthly lease expense | $ 650 |  |
Lease expiration | 2036 |  |

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