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Derivatives (Tables)
 12 Months Ended
Dec. 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Price Risk Derivatives
At December 31, 2012, the Company held derivatives for risk management purposes that are expected to settle in the following years:
 
(Tons in thousands)
 
2013
 
2014
 
2015
 
Total
Coal sales
 
6,704

 
4,260

 
780

 
11,744

Coal purchases
 
1,410

 
1,260

 
—

 
2,670
Disclosure Of Fair Value Of Derivatives
 
 
December 31, 2012
 
 
 
December 31, 2011
 
 
Fair Value of Derivatives
 
Asset
 
Liability
 
 
 
Asset
 
Liability
 
 
(In thousands)
 
Derivative
 
Derivative
 
 
 
Derivative
 
Derivative
 
 
Derivatives Designated as Hedging Instruments
 
 

 
 

 
 

 
 

 
 

 
 

Heating oil--diesel purchases
 
$
—

 
$
—

 
 

 
$
8,997

 
$
—

 
 

Coal
 
3,277

 
(10
)
 
 

 
1,109

 
—

 
 

Total
 
3,277

 
(10
)
 
 

 
10,106

 
—

 
 

Derivatives Not Designated as Hedging Instruments
 
 

 
 

 
 

 
 

 
 

 
 

Heating oil -- diesel purchases
 
7,379

 
—

 
 

 
—

 
—

 
 

Heating oil -- fuel surcharges
 
1,961

 
—

 
 

 
1,797

 
—

 
 

Coal -- held for trading purposes
 
17,403

 
(16,933
)
 
 

 
15,505

 
(19,927
)
 
 

Coal -- risk management
 
24,843

 
(7,342
)
 
 

 
14,855

 
(6,035
)
 
 

Total
 
51,586

 
(24,275
)
 
 

 
32,157

 
(25,962
)
 
 

Total derivatives
 
54,863

 
(24,285
)
 
 

 
42,263

 
(25,962
)
 
 

Effect of counterparty netting
 
(22,548
)
 
22,548

 
 

 
(18,134
)
 
18,134

 
 

Net derivatives as classified in the balance sheets
 
$
32,315

 
$
(1,737
)
 
$
30,578

 
$
24,129

 
$
(7,828
)
 
$
16,301

 
 
 
 
 
December 31, 2012
 
December 31, 2011
Net derivatives as reflected on the balance sheets
 
 
 
 

 
 

Heating oil
 
Other current assets
 
$
9,340

 
$
10,794

Coal
 
Coal derivative assets
 
22,975

 
13,335

 
 
Coal derivative liabilities
 
(1,737
)
 
(7,828
)
 
 
 
 
$
30,578

 
$
16,301
Effects Of Derivatives On Measures Of Financial Performance
Derivatives used in Cash Flow Hedging Relationships (in thousands)
For the year ended December 31,  
 
 
Gain (Loss) Recognized in Other Comprehensive Income(Effective Portion)
 
Gains (Losses) Reclassified from Other Comprehensive Income into Income
(Effective Portion)
 
 
 
(2) 
2012
 
2011
 
2010
 
2012
 
2011
 
2010
 
 
Heating oil — diesel purchases
(1) 
$
—

 
$
1,294

 
$
(149
)
 
$
—

 
$
14,866

 
$
437

 
 
Coal sales
(2) 
7,690

 
4,923

 
(4,714
)
 
2,675

 
1,572

 
(1,602
)
 
 
Coal purchases
 
(2,440
)
 
(2,009
)
 
5,145

 
—

 
—

 
(1,202
)
 
 
Totals
 
$
5,250

 
$
4,208

 
$
282

 
$
2,675

 
$
16,438

 
$
(2,367
)
 
 
 
No ineffectiveness or amounts excluded from effectiveness testing relating to the Company’s cash flow hedging relationships were recognized in the results of operations in the twelve month periods ended December 31, 2012 and 2011.  
 
Derivatives Not Designated as Hedging Instruments (in thousands)
For the year ended December 31
 
 
Gain (Loss) Recognized
 
 
 
2012
 
2011
 
2010
 
Coal — unrealized
(3) 
$
8,272

 
$
6,438

 
$
(10,991
)
 
Coal — realized
(4) 
$
43,990

 
$
(7
)
 
$
4,542

 
Heating oil — diesel purchases
(4) 
$
(22,281
)
 
$
(2,906
)
 
$
—

 
Heating oil — fuel surcharges
(4) 
$
(2,209
)
 
$
—

 
$
—

 

____________________________________________________________
Location in statement of operations:
(1) — Revenues
(2) — Cost of sales
(3) — Change in fair value of coal derivatives and coal trading activities, net
(4) — Other operating income, net