XML 64 R37.htm IDEA: XBRL DOCUMENT v3.8.0.1
Segment Information - Summarized Financial Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Segment Reporting Information, Profit (Loss) [Abstract]          
Electric operating revenues $ 419,900 $ 400,374 $ 1,112,398 $ 1,026,726  
Cost of energy 103,748 108,766 310,818 282,498  
Utility margin 316,152 291,608 801,580 744,228  
Other operating expenses 114,847 130,520 345,202 376,028  
Depreciation and amortization 58,821 53,017 172,829 153,801  
Operating income 142,484 108,071 283,549 214,399  
Interest income 3,582 4,604 12,348 18,420  
Other income (deductions) 7,110 5,651 21,398 17,927  
Interest charges (32,106) (32,467) (96,137) (97,179)  
Earnings before Income Taxes 121,070 85,859 221,158 153,567  
Income taxes (benefit) 42,743 27,303 75,154 50,094  
Net Earnings 78,327 58,556 146,004 103,473  
Valencia non-controlling interest (4,456) (4,006) (11,452) (11,037)  
Subsidiary preferred stock dividends (132) (132) (396) (396)  
Net Earnings Available for PNM Common Stock 73,739 54,418 134,156 92,040  
Total Assets 6,697,254 6,403,670 6,697,254 6,403,670 $ 6,471,080
Goodwill 278,297 278,297 278,297 278,297 $ 278,297
PNM          
Segment Reporting Information, Profit (Loss) [Abstract]          
Electric operating revenues 327,254 311,276 854,909 780,228  
Cost of energy 82,367 88,565 246,635 222,376  
Utility margin 244,887 222,711 608,274 557,852  
Other operating expenses 94,871 109,342 288,300 314,961  
Depreciation and amortization 36,764 33,312 109,228 97,778  
Operating income 113,252 80,057 210,746 145,113  
Interest income 1,782 1,509 6,457 8,549  
Other income (deductions) 6,342 4,980 19,924 17,305  
Interest charges (20,451) (22,213) (62,393) (66,494)  
Earnings before Income Taxes 100,925 64,333 174,734 104,473  
Income taxes (benefit) 35,642 19,343 58,865 32,131  
Net Earnings 65,283 44,990 115,869 72,342  
Valencia non-controlling interest (4,456) (4,006) (11,452) (11,037)  
Subsidiary preferred stock dividends (132) (132) (396) (396)  
Net Earnings Available for PNM Common Stock 60,695 40,852 104,021 60,909  
Total Assets 5,023,816 4,799,012 5,023,816 4,799,012  
Goodwill 51,632 51,632 51,632 51,632  
TNMP          
Segment Reporting Information, Profit (Loss) [Abstract]          
Electric operating revenues 92,646 89,098 257,489 246,498  
Cost of energy 21,381 20,201 64,183 60,122  
Utility margin 71,265 68,897 193,306 186,376  
Other operating expenses 25,367 24,184 72,188 70,328  
Depreciation and amortization 16,424 16,354 47,392 45,760  
Operating income 29,474 28,359 73,726 70,288  
Interest income 0 0 0 0  
Other income (deductions) 1,228 855 2,392 2,139  
Interest charges (7,704) (7,308) (22,619) (22,150)  
Earnings before Income Taxes 22,998 21,906 53,499 50,277  
Income taxes (benefit) 8,271 8,053 18,964 18,460  
Net Earnings 14,727 13,853 34,535 31,817  
Valencia non-controlling interest 0 0 0 0  
Subsidiary preferred stock dividends 0 0 0 0  
Net Earnings Available for PNM Common Stock 14,727 13,853 34,535 31,817  
Total Assets 1,465,219 1,366,840 1,465,219 1,366,840  
Goodwill 226,665 226,665 226,665 226,665  
Corporate and Other          
Segment Reporting Information, Profit (Loss) [Abstract]          
Electric operating revenues 0 0 0 0  
Cost of energy 0 0 0 0  
Utility margin 0 0 0 0  
Other operating expenses (5,391) (3,006) (15,286) (9,261)  
Depreciation and amortization 5,633 3,351 16,209 10,263  
Operating income (242) (345) (923) (1,002)  
Interest income 1,800 3,095 5,891 9,871  
Other income (deductions) (460) (184) (918) (1,517)  
Interest charges (3,951) (2,946) (11,125) (8,535)  
Earnings before Income Taxes (2,853) (380) (7,075) (1,183)  
Income taxes (benefit) (1,170) (93) (2,675) (497)  
Net Earnings (1,683) (287) (4,400) (686)  
Valencia non-controlling interest 0 0 0 0  
Subsidiary preferred stock dividends 0 0 0 0  
Net Earnings Available for PNM Common Stock (1,683) (287) (4,400) (686)  
Total Assets 208,219 237,818 208,219 237,818  
Goodwill $ 0 $ 0 $ 0 $ 0