XML 51 R39.htm IDEA: XBRL DOCUMENT v3.8.0.1
Derivative Instruments (Tables)
 9 Months Ended
Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Impact of Derivatives Net In Consolidated Balance Sheet [Table Text Block]
 
 
September 30, 2017
 
 
Net Presentation
 
Gross Presentation
 
 
Net Assets (Liabilities) Presented in the Consolidated Balance Sheets
Risk management assets—Commodity forward contracts
 
Risk management liabilities—Commodity forward contracts
Accounts receivable, net
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
   arrangements
 
$
793

 
$
2,778

 
$
(1,985
)
Derivative positions not subject to enforceable master netting
   arrangements
 
4,557

 
4,557

 
—

 
 
5,350

 
7,335

 
(1,985
)
Deferred charges and other assets, net
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
—

 
—

 
—

Derivative positions not subject to enforceable master netting
arrangements
 
4,336

 
4,336

 
—

 
 
4,336

 
4,336

 
—

Accrued liabilities
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
—

 
—

 
—

Derivative positions not subject to enforceable master netting
arrangements
 
(704
)
 
—

 
(704
)
 
 
(704
)
 
—

 
(704
)
Other liabilities
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
(1,410
)
 
745

 
(2,155
)
Derivative positions not subject to enforceable master netting
arrangements
 
(2,774
)
 
—

 
(2,774
)
 
 
(4,184
)
 
745

 
(4,929
)
Risk management assets (liabilities)—Commodity forward
   contracts
 
 
 
$
12,416

 
$
(7,618
)
 
 
December 31, 2016
 
 
Net Presentation
 
Gross Presentation
 
 
Net Assets (Liabilities) Presented in the Consolidated Balance Sheets
Risk management assets—Commodity forward contracts
 
Risk management liabilities—Commodity forward contracts
Accounts receivable, net
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
$
1,498

 
$
1,636

 
$
(138
)
Derivative positions not subject to enforceable master netting
arrangements
 
6,091

 
6,091

 
—

 
 
7,589

 
7,727

 
(138
)
Deferred charges and other assets, net
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
—

 
—

 
—

Derivative positions not subject to enforceable master netting
arrangements
 
5,249

 
5,249

 
—

 
 
5,249

 
5,249

 
—

Accrued liabilities
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
—

 
—

 
—

Derivative positions not subject to enforceable master netting
arrangements
 
(1,349
)
 
—

 
(1,349
)
 
 
(1,349
)
 
—

 
(1,349
)
Other liabilities
 
 
 
 
 
 
Derivative positions subject to enforceable master netting
arrangements
 
(436
)
 
2,010

 
(2,446
)
Derivative positions not subject to enforceable master netting
arrangements
 
(3,288
)
 
—

 
(3,288
)
 
 
(3,724
)
 
2,010

 
(5,734
)
Risk management assets (liabilities)—Commodity forward
   contracts
 
 
 
$
14,986

 
$
(7,221
)
Impact of Derivative Instruments Not Designated as Fair Value Hedges
The impacts of derivative instruments that have not been designated as hedges on the Company's consolidated statements of operations were as follows:
Derivatives Not Designated as
   Hedging Instruments
 
Location of Gain (Loss) Recognized
 in Income on Derivative
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
2017
 
2016
 
2017
 
2016
Commodity forward contracts
 
Cost of sales
 
$
6,846

 
$
(7,840
)
 
$
(2,756
)
 
$
7,784