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Commitments and Contigencies Future minimum lease payments (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2020 $ 15,886
2021 13,186
2022 10,385
2023 6,572
2024 3,216
Thereafter 2,771
Total minimum lease payments $ 52,016