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Contingent Liabilities and Commitments (Lease commitments for leases having terms of more than one year) (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Year-ended June 30:  
2018 $ 28,381
2019 23,558
2020 17,326
2021 16,241
2022 15,993
Thereafter 77,293
Total 178,792
Property Plant and Equipment, Ground [Member]  
Year-ended June 30:  
2018 957
2019 1,008
2020 1,024
2021 1,025
2022 1,030
Thereafter 46,653
Total 51,697
Property, Plant and Equipment, Operating [Member]  
Year-ended June 30:  
2018 16,616
2019 15,235
2020 15,873
2021 15,216
2022 14,963
Thereafter 30,640
Total 108,543
Rental Equipment [Member]  
Year-ended June 30:  
2018 10,808
2019 7,315
2020 429
2021
2022
Thereafter
Total $ 18,552