XML 59 R29.htm IDEA: XBRL DOCUMENT v2.4.0.8
(6) Other Long-Term Assets and Other Income (Details) - Other Long-Term Income (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Other income:    
MSHA reimbursements* $ 2,053 [1] $ 4,236 [1]
Coal storage fees 586  
Miscellaneous 521 258
$ 3,160 $ 4,494
[1] See "MSHA Reimbursements" below.