XML 85 R74.htm IDEA: XBRL DOCUMENT v3.10.0.1
Accounts Payable and Accrued Liabilities - Schedule of Long-Term Accrued Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Accounts Payable and Accrued Liabilities [Abstract]    
Amounts payable in respect of restructuring and other Special charges $ 5,740 $ 4,362
Other accrued liabilities 31,965 35,874
Asset retirement obligations 13,463 12,591
Total $ 51,168 $ 52,827