Quarterly report pursuant to Section 13 or 15(d)

财产及设备 (Schedule Of Asset Retirement Obligation) (Details)

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财产及设备 (Schedule Of Asset Retirement Obligation) (Details) (USD $)
In Thousands, unless otherwise specified
3个月结束 6个月结束
小君. 30, 2014
小君. 30, 2013
小君. 30, 2014
小君. 30, 2013
12月. 31, 2013
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]          
Asset retirement obligation, beginning of period     $ 15,083 $ 13,275  
负债已经发生     3,613 1,194  
负债结算     (3,097) (807)  
增长的费用 189 174 377 349  
Asset retirement obligation as of end of period 15,976 14,011 15,976 14,011  
小电流部分 795 780 795 780 795
Asset retirement obligation, long-term $ 15,181 $ 13,231 $ 15,181 $ 13,231 $ 14,288