XML 66 R35.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Regulatory Assets and Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Regulated Operations [Abstract] |
Schedule of Regulatory Assets and Liabilities | Regulatory assets and liabilities reflected in the Consolidated Balance Sheets are presented below.
| PNM |  | TNMP
| December 31, |  | December 31,
| 2017 |  | 2016 |  | 2017 |  | 2016
Assets: | (In thousands)
Current: |  |  |  |  |  |  |
FPPAC | $ | 363 |  |  | $ | 1,451 |  |  | $ | — |  |  | $ | — |
Energy efficiency costs | 1,776 |  |  | 1,991 |  |  | 794 |  |  | 413 |
| 2,139 |  |  | 3,442 |  |  | 794 |  |  | 413 |
Non-Current: |  |  |  |  |  |  |
CTC, including carrying charges | — |  |  | — |  |  | 26,998 |  |  | 36,328 |
Coal mine reclamation costs | 16,462 |  |  | 22,383 |  |  | — |  |  | — |
Deferred income taxes | 59,220 |  |  | 62,918 |  |  | 9,621 |  |  | 9,932 |
Loss on reacquired debt | 22,744 |  |  | 24,404 |  |  | 32,808 |  |  | 34,107 |
Pension and OPEB | 222,774 |  |  | 249,286 |  |  | 26,153 |  |  | 27,661 |
Shutdown of SJGS Units 2 and 3 | 125,539 |  |  | — |  |  | — |  |  | — |
Hurricane recovery costs | — |  |  | — |  |  | 6,640 |  |  | — |
AMS surcharge | — |  |  | — |  |  | 27,903 |  |  | 14,669 |
AMS retirement costs | — |  |  | — |  |  | 8,948 |  |  | 11,086 |
Other | 12,500 |  |  | 6,422 |  |  | 2,362 |  |  | 2,027 |
| 459,239 |  |  | 365,413 |  |  | 141,433 |  |  | 135,810 |
Total regulatory assets | $ | 461,378 |  |  | $ | 368,855 |  |  | $ | 142,227 |  |  | $ | 136,223 |
| PNM |  | TNMP
| December 31, |  | December 31,
| 2017 |  | 2016 |  | 2017 |  | 2016
Liabilities: | (In thousands)
Current: |  |  |  |  |  |  |
Renewable energy rider | $ | (779 | ) |  | $ | (3,411 | ) |  | $ | — |  |  | $ | — |
Other | (5 | ) |  | (106 | ) |  | (1,525 | ) |  | (92 | )
| (784 | ) |  | (3,517 | ) |  | (1,525 | ) |  | (92 | )
Non-Current: |  |  |  |  |  |  |
Cost of removal | (256,493 | ) |  | (297,087 | ) |  | (26,541 | ) |  | (26,900 | )
Deferred income taxes | (445,390 | ) |  | (62,920 | ) |  | (148,455 | ) |  | (2,644 | )
PVNGS ARO | (24,889 | ) |  | (30,621 | ) |  | — |  |  | — |
Renewable energy tax benefits | (21,383 | ) |  | (22,540 | ) |  | — |  |  | — |
Nuclear spent fuel reimbursements | (5,518 | ) |  | (8,875 | ) |  | — |  |  | — |
Pension and OPEB | — |  |  | — |  |  | (3,442 | ) |  | (1,955 | )
Other | (768 | ) |  | (1,658 | ) |  | (699 | ) |  | (449 | )
| (754,441 | ) |  | (423,701 | ) |  | (179,137 | ) |  | (31,948 | )
Total regulatory liabilities | $ | (755,225 | ) |  | $ | (427,218 | ) |  | $ | (180,662 | ) |  | $ | (32,040 | )

X
- Definition Regulatory Assets and Liabilities [Table Text Block] + References No definition available. + Details
Name: | pnm_RegulatoryAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | pnm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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