Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement Obligations (Roll-Forward) (Details)

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Asset Retirement Obligations (Roll-Forward) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Dec. 31, 2013
Jun. 30, 2013
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Fiscal year opening balance $ 6,879  
Liabilities incurred 7  
Accretion expense 220  
Effect of exchange rate changes (94)  
December 31, 2013 7,012  
Less current asset retirement obligation 384 476
Long term asset retirement obligation $ 6,628 $ 6,403