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Derivatives And Risk Management (Tables)
 6 Months Ended
Jun. 30, 2013
Derivative Instruments and Hedges, Assets [Abstract]  
Energy Commodity Derivatives
 
Purchases
 
Sales
 
Electric Derivatives
 
Gas Derivatives
 
Electric Derivatives
 
Gas Derivatives
Year
Physical (1)
MWH
 
Financial (1)
MWH
 
Physical (1)
mmBTUs
 
Financial (1)
mmBTUs
 
Physical
MWH
 
Financial
MWH
 
Physical
mmBTUs
 
Financial
mmBTUs
2013
555

 
1,923

 
13,910

 
61,099

 
270

 
2,164

 
1,973

 
45,646

2014
620

 
1,323

 
6,808

 
84,332

 
377

 
2,599

 
1,786

 
53,263

2015
379

 
982

 
3,768

 
55,920

 
254

 
1,463

 
—

 
46,840

2016
367

 
—

 
1,745

 
23,960

 
287

 
675

 
—

 
13,380

2017
366

 
—

 
225

 
—

 
286

 
—

 
—

 
—

Thereafter
583

 
—

 
—

 
—

 
443

 
—

 
—

 
—

 
(1)
Physical transactions represent commodity transactions where Avista Utilities will take delivery of either electricity or natural gas and financial transactions represent derivative instruments with no physical delivery, such as futures, swaps or options.
Foreign Currency Exchange Contracts
 
June 30,
 
December 31,
 
2013
 
2012
Number of contracts
26

 
20

Notional amount (in United States dollars)
$
7,682

 
$
12,621

Notional amount (in Canadian dollars)
7,938

 
12,502
Interest Rate Swap Agreements
 
June 30,
 
December 31,
 
2013
 
2012
Number of contracts
—

 
2

Notional amount
—

 
$
85,000

Mandatory cash settlement date
—

 
June 2013

Number of contracts
2

 
2

Notional amount
$
50,000

 
$
50,000

Mandatory cash settlement date
October 2014

 
October 2014

Number of contracts
2

 
1

Notional amount
$
45,000

 
$
25,000

Mandatory cash settlement date
October 2015

 
October 2015

Number of contracts
1

 
—

Notional amount
$
20,000

 
—

Mandatory cash settlement date
October 2016

 
—
Derivative Instruments Summary
 
 
 
 
Fair Value
Derivative
 
Balance Sheet Location
 
Gross
Asset
 
Gross
Liability
 
Collateral
Netting
 
Net Asset
(Liability)
in Balance
Sheet
 
Gross Assets Not Offset
 
Gross Liabilities Not Offset
 
Net Asset (Liability)
Foreign currency contracts
 
Other current liabilities
 
$
1

 
$
(135
)
 
$
—

 
$
(134
)
 
$
—

 
$
—

 
$
(134
)
Interest rate contracts
 
Other property and investments - net
 
21,120

 
—

 
—

 
21,120

 
—

 
—

 
21,120

Commodity contracts (1)
 
Current utility energy commodity derivative assets
 
2,840

 
(590
)
 
—

 
2,250

 
—

 
—

 
2,250

Commodity contracts (1)
 
Non-current utility energy commodity derivative assets
 
615

 
(480
)
 
—

 
135

 
—

 
—

 
135

Commodity contracts (1)
 
Current utility energy commodity derivative liabilities
 
36,517

 
(66,639
)
 
7,749

 
(22,373
)
 
—

 
—

 
(22,373
)
Commodity contracts (1)
 
Other non-current liabilities and deferred credits
 
23,977

 
(55,700
)
 
6,481

 
(25,242
)
 
—

 
—

 
(25,242
)
Total derivative instruments recorded on the balance sheet
 
$
85,070

 
$
(123,544
)
 
$
14,230

 
$
(24,244
)
 
$
—

 
$
—

 
$
(24,244
)
The following table presents the fair values and locations of derivative instruments recorded on the Condensed Consolidated Balance Sheet as of December 31, 2012 (in thousands):
 
 
 
 
Fair Value
Derivative
 
Balance Sheet Location
 
Gross
Asset
 
Gross
Liability
 
Collateral
Netting
 
Net Asset
(Liability)
in Balance
Sheet
 
Gross Assets Not Offset
 
Gross Liabilities Not Offset
 
Net Asset (Liability)
Foreign currency contracts
 
Other current liabilities
 
$
7

 
$
(34
)
 
$
—

 
$
(27
)
 
$
—

 
$
—

 
$
(27
)
Interest rate contracts
 
Other current liabilities
 
—

 
(1,406
)
 
—

 
(1,406
)
 
—

 
—

 
(1,406
)
Interest rate contracts
 
Other property and investments - net
 
7,265

 
—

 
—

 
7,265

 
—

 
—

 
7,265

Commodity contracts (1)
 
Current utility energy commodity derivative assets
 
10,772

 
(6,633
)
 
—

 
4,139

 
(9,678
)
 
6,572

 
1,033

Commodity contracts (1)
 
Non-current utility energy commodity derivative assets
 
18,779

 
(17,686
)
 
—

 
1,093

 
—

 
—

 
1,093

Commodity contracts (1)
 
Current utility energy commodity derivative liabilities
 
50,227

 
(89,449
)
 
9,707

 
(29,515
)
 
9,678

 
(6,572
)
 
(26,409
)
Commodity contracts (1)
 
Other non-current liabilities and deferred credits
 
2,247

 
(28,558
)
 
—

 
(26,311
)
 
—

 
—

 
(26,311
)
Total derivative instruments recorded on the balance sheet
 
$
89,297

 
$
(143,766
)
 
$
9,707

 
$
(44,762
)
 
$
—

 
$
—

 
$
(44,762
)

(1)
Avista Corp. has a master netting agreement that governs the transactions of multiple affiliated legal entities under this single master netting agreement. This master netting agreement allows for cross-commodity netting (i.e. netting physical power, physical natural gas, and financial transactions) and cross-affiliate netting for the parties to the agreement. Avista Corp. performs cross-commodity netting for each legal entity that is a party to the master netting agreement for presentation in the Condensed Consolidated Balance Sheets; however, Avista Corp. does not perform cross-affiliate netting because the Company believes that cross-affiliate netting may not be enforceable. Therefore, the requirements for cross-affiliate netting under ASC 210-20-45 are not applicable for Avista Corp. As of June 30, 2013, the gross assets and gross liabilities which were not netted under this master netting agreement were negligible.