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Leases and Commitments - Future Minimum Lease Payments (Details)
$ in Thousands
Sep. 30, 2018
USD ($)
Leases [Abstract]  
2018 $ 2,634
2019 15,457
2020 19,266
2021 3,542
2022 4,416
Thereafter 9,199
2018 2,855
2019 8,277
2020 4,817
2021 753
2022 349
Thereafter $ 459