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Lease Commitments - Schedule of Supplemental Cash Flows Related to Leases (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | $ 9,658 | $ 9,891
Operating cash flows from financing leases | 27 | 32
Finance cash flows from financing leases | 147 | 58
Non-cash information related to right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 0 | 157,440
Financing leases | 4,272 | 2,904
PNM |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 9,351 | 9,452
Operating cash flows from financing leases | 16 | 16
Finance cash flows from financing leases | 80 | 25
Non-cash information related to right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 0 | 143,816
Financing leases | 1,463 | 1,635
TNMP |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 166 | 284
Operating cash flows from financing leases | 9 | 17
Finance cash flows from financing leases | 51 | 33
Non-cash information related to right-of-use assets obtained in exchange for lease obligations: |  |
Operating leases | 0 | 12,942
Financing leases | $ 2,802 | $ 1,268

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- Definition Amount of cash outflow for principal payment on finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(1) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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