XML 27 R22.htm IDEA: XBRL DOCUMENT
v3.20.1

Changes in Accumulated Other Comprehensive Loss | 3 Months Ended
--- | ---
Mar. 31, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Changes in Accumulated Other Comprehensive Loss | Changes in Accumulated Other Comprehensive Loss 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 three months ended March 31, 2020 and 2019 (dollars in thousands):
| Pension and Other Postretirement Benefits |  |  |  | Derivative Instruments |  |  |  | Total
Balance December 31, 2019 | $ | (56,522 | ) |  |  |  | $ | (574 | ) |  |  |  | $ | (57,096 | )
OCI (loss) before reclassifications | — |  |  |  |  | 292 |  |  |  |  | 292 |
Amounts reclassified from accumulated other comprehensive loss | 1,205 |  |  | (a) |  | 20 |  |  | (b) |  | 1,225 |
Balance March 31, 2020 | $ | (55,317 | ) |  |  |  | $ | (262 | ) |  |  |  | $ | (55,579 | )
Balance December 31, 2018 | $ | (45,997 | ) |  |  |  | $ | (1,711 | ) |  |  |  | $ | (47,708 | )
Amounts reclassified from accumulated other comprehensive loss | 879 |  |  | (a) |  | 328 |  |  | (b) |  | 1,207 |
Balance March 31, 2019 | $ | (45,118 | ) |  |  |  | $ | (1,383 | ) |  |  |  | $ | (46,501 | )
(a) | These amounts primarily represent amortization of actuarial loss and are included in the computation of net periodic pension cost. See Note 5.
(b) 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 7. The following table shows the changes in APS's consolidated accumulated other comprehensive loss, including reclassification adjustments, net of tax, by component for the three months ended March 31, 2020 and 2019 (dollars in thousands):
| Pension and Other Postretirement Benefits |  |  |  | Derivative Instruments |  |  |  | Total
Balance December 31, 2019 | $ | (34,948 | ) |  |  |  | $ | (574 | ) |  |  |  | $ | (35,522 | )
OCI (loss) before reclassifications | — |  |  |  |  | 292 |  |  |  |  | 292 |
Amounts reclassified from accumulated other comprehensive loss | 1,013 |  |  | (a) |  | 20 |  |  | (b) |  | 1,033 |
Balance March 31, 2020 | $ | (33,935 | ) |  |  |  | $ | (262 | ) |  |  |  | $ | (34,197 | )
Balance December 31, 2018 | $ | (25,396 | ) |  |  |  | $ | (1,711 | ) |  |  |  | $ | (27,107 | )
Amounts reclassified from accumulated other comprehensive loss | 752 |  |  | (a) |  | 328 |  |  | (b) |  | 1,080 |
Balance March 31, 2019 | $ | (24,644 | ) |  |  |  | $ | (1,383 | ) |  |  |  | $ | (26,027 | )
(a) | These amounts primarily represent amortization of actuarial loss and are included in the computation of net periodic pension cost. See Note 5.
(b) 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 7.

X
- References No definition available. + Details
Name: | us-gaap_ComprehensiveIncomeNetOfTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
Name: | us-gaap_ComprehensiveIncomeNoteTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration