XML 78 R51.htm IDEA: XBRL DOCUMENT v3.6.0.2
Changes in Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2016
Changes in accumulated other comprehensive income (loss) including reclassification adjustments, by component:  
Schedule of changes in accumulated other comprehensive loss including reclassification adjustments, by component
The following table shows the changes in Pinnacle West's consolidated accumulated other comprehensive loss, including reclassification adjustments, net of tax, by component for the years ended December 31, 2016 and 2015 (dollars in thousands): 
 
Year Ended December 31,
 
2016
 
2015
Balance at beginning of period
$
(44,748
)
 
$
(68,141
)
Derivative Instruments
 
 
 
OCI (loss) before reclassifications
(538
)
 
(957
)
Amounts reclassified from accumulated other comprehensive loss (a)
2,941

 
4,187

Net current period OCI (loss)
2,403

 
3,230

Pension and Other Postretirement Benefits
 
 
 
OCI (loss) before reclassifications
(4,509
)
 
16,980

Amounts reclassified from accumulated other comprehensive loss (b)
3,032

 
3,183

Net current period OCI (loss)
(1,477
)
 
20,163

Balance at end of period
$
(43,822
)
 
$
(44,748
)

(a)
These amounts represent realized gains and losses and are included in the computation of fuel and purchased power costs and are subject to the PSA.  See Note 16.
(b)
These amounts primarily represent amortization of actuarial loss, and are included in the computation of net periodic pension cost.  See Note 7.
ARIZONA PUBLIC SERVICE COMPANY  
Changes in accumulated other comprehensive income (loss) including reclassification adjustments, by component:  
Schedule of changes in accumulated other comprehensive loss including reclassification adjustments, by component
The following table shows the changes in APS's accumulated other comprehensive loss, including reclassification adjustments, net of tax, by component for the years ended December 31, 2016 and 2015 (dollars in thousands): 
 
Year Ended December 31,
 
2016
 
2015
Balance at beginning of period
$
(27,097
)
 
$
(48,333
)
Derivative Instruments
 
 
 
OCI (loss) before reclassifications
(538
)
 
(957
)
Amounts reclassified from accumulated other comprehensive loss (a)
2,941

 
4,187

Net current period OCI (loss)
2,403

 
3,230

Pension and Other Postretirement Benefits
 
 
 
OCI (loss) before reclassifications
(3,821
)
 
14,726

Amounts reclassified from accumulated other comprehensive loss (b)
3,092

 
3,280

Net current period OCI (loss)
(729
)
 
18,006

Balance at end of period
$
(25,423
)
 
$
(27,097
)

(a)
These amounts represent realized gains and losses and are included in the computation of fuel and purchased power costs and are subject to the PSA.  See Note 16.
(b)
These amounts primarily represent amortization of actuarial loss, and are included in the computation of net periodic pension cost.  See Note 7.