XML 129 R95.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Summary of Budgeted Construction Expenditures (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013
Summary of Budgeted Construction Expenditures [Line Items] |
2014 | $ 509.0
2015 | 524.0
2016 | 489.3
2017 | 443.1
2018 | 301.8
Total | 2,267.2
Public Service Company of New Mexico [Member] |
Summary of Budgeted Construction Expenditures [Line Items] |
2014 | 360.8
2015 | 433.7
2016 | 387.3
2017 | 335.4
2018 | 181.7
Total | 1,698.9
Texas-New Mexico Power Company [Member] |
Summary of Budgeted Construction Expenditures [Line Items] |
2014 | 129.9
2015 | 76.0
2016 | 87.8
2017 | 93.9
2018 | 106.4
Total | 494.0
Other Subsidiaries [Member] |
Summary of Budgeted Construction Expenditures [Line Items] |
2014 | 18.3
2015 | 14.3
2016 | 14.2
2017 | 13.8
2018 | 13.7
Total | 74.3
San Juan Generating Station [Member] | Public Service Company of New Mexico [Member] |
Summary of Budgeted Construction Expenditures [Line Items] |
Environmental Upgrades Requirement Estimates | 80.0
Budgeted Construction Expenditures Related to Replacement Capacity | $ 276.3

X
- Definition Budgeted Construction Expenditures Related to Replacement Capacity + References No definition available. + Details
Name: | pnm_BudgetedConstructionExpendituresRelatedtoReplacementCapacity
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Budgeted Future Construction Expenditures, Year Five + References No definition available. + Details
Name: | pnm_BudgetedFutureConstructionExpendituresYearFive
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Budgeted Future Construction Expenditures, Year Four + References No definition available. + Details
Name: | pnm_BudgetedFutureConstructionExpendituresYearFour
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Budgeted Future Construction Expenditures, Year One + References No definition available. + Details
Name: | pnm_BudgetedFutureConstructionExpendituresYearOne
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Budgeted Future Construction Expenditures, Year Three + References No definition available. + Details
Name: | pnm_BudgetedFutureConstructionExpendituresYearThree
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Budgeted Future Construction Expenditures, Year Two + References No definition available. + Details
Name: | pnm_BudgetedFutureConstructionExpendituresYearTwo
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Environmental Upgrades Requirement Estimates + References No definition available. + Details
Name: | pnm_EnvironmentalUpgradesRequirementEstimates
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | pnm_SummaryOfBudgetedConstructionExpendituresLineItems
Namespace Prefix: | pnm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total Budgeted Construction Expenditures + References No definition available. + Details
Name: | pnm_TotalBudgetedConstructionExpenditures
Namespace Prefix: | pnm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant