Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement Obligations (Roll-Forward) (Details)

v2.4.0.8
Asset Retirement Obligations (Roll-Forward) (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Mar. 31, 2014
Jun. 30, 2013
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]    
Fiscal year opening balance $ 6,879  
Liabilities incurred 7  
Liabilities sold (4,457)  
Accretion expense 325  
Effect of exchange rate changes 68  
Balance at March 31, 2014 2,822  
Less current asset retirement obligation 388 476
Long term asset retirement obligation $ 2,434 $ 6,403