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Lease Commitments (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2014 Public Service Company of New Mexico [Member] | Mar. 31, 2014 Public Service Company of New Mexico [Member] Palo Verde Nuclear Generating Station [Member] | Feb. 25, 2014 Public Service Company of New Mexico [Member] Palo Verde Nuclear Generating Station, Unit 2 Leases 31.2494 MW [Member] | Jan. 15, 2016 Public Service Company of New Mexico [Member] Palo Verde Nuclear Generating Station, Unit 2 Leases [Member] MW | May 01, 2014 Subsequent Event [Member] Public Service Company of New Mexico [Member] Palo Verde Nuclear Generating Station, Unit 2 Leases [Member] MW | May 01, 2014 Subsequent Event [Member] Public Service Company of New Mexico [Member] Palo Verde Nuclear Generating Station, Unit 2 Leases 32.76 MW [Member] | May 01, 2014 Subsequent Event [Member] Maximum [Member] Public Service Company of New Mexico [Member] Palo Verde Nuclear Generating Station, Unit 2 Leases 32.76 MW [Member]
Operating Leased Assets [Line Items] |  |  |  |  |  |  |  |
Rental Payments, Fixed renewal option period during original terms of leases |  |  | 50.00% |  |  |  |  |
Purchase Price of Leased Asset to be paid January 15, 2016 |  |  |  | $ 78.1 |  |  | $ 85.2 |
Leased Capacity to be Purchased |  |  |  |  | 31.2494 | 32.7600 |  |
Early Purchase Price of Leased Asset effective June 1, 2014 |  |  |  |  |  |  | 79.9 |
Additional consideration for early purchase of leased asset effective June 1, 2014 |  |  |  |  |  |  |  | $ 5.8
Operating Lease, Extended Term | 2 years |  |  |  |  |  |  |
Operating Leases, Renewal Options After Original Lease Term (in years) | 6 years | 2 years |  |  |  |  |  |

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- Details
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