Leases (Details 1)
$ in Thousands
Jun. 30, 2019
USD ($)
Leases [Abstract]  
2019 $ 784,706
2020 614,269
2021 385,908
2022 0
2023 0
Thereafter 0
Total lease payments 1,784,883
Less imputed interest (273,985)
Total $ 1,510,898