Cover
Cover - shares | 9 Months Ended | |
Sep. 30, 2023 | Oct. 31, 2023 | |
Entity Information [Line Items] | ||
Document Type | 10-Q | |
Document Quarterly Report | true | |
Document Period End Date | Sep. 30, 2023 | |
Document Transition Report | false | |
Entity File Number | 001-37976 | |
Entity Registrant Name | Southwest Gas Holdings, Inc. | |
Entity Incorporation, State or Country Code | DE | |
Entity Tax Identification Number | 81-3881866 | |
Entity Address, Address Line One | 8360 S. Durango Drive | |
Entity Address, Address Line Two | Post Office Box 98510 | |
Entity Address, City or Town | Las Vegas, | |
Entity Address, State or Province | NV | |
Entity Address, Postal Zip Code | 89193-8510 | |
City Area Code | (702) | |
Local Phone Number | 876-7237 | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Filer Category | Large Accelerated Filer | |
Entity Small Business | false | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Entity Common Stock, Shares Outstanding | 71,519,025 | |
Entity Central Index Key | 0001692115 | |
Document Fiscal Year Focus | 2023 | |
Document Fiscal Period Focus | Q3 | |
Amendment Flag | false | |
Current Fiscal Year End Date | --12-31 | |
Southwest Gas Holdings, Inc. Common Stock, $1 Par Value | ||
Entity Information [Line Items] | ||
Title of 12(b) Security | Southwest Gas Holdings, Inc. Common Stock, $1 Par Value | |
Trading Symbol | SWX | |
Security Exchange Name | NYSE | |
Preferred Stock Purchase Rights | ||
Entity Information [Line Items] | ||
Title of 12(b) Security | Preferred Stock Purchase Rights | |
No Trading Symbol Flag | true | |
Security Exchange Name | NYSE | |
Southwest Gas Corporation | ||
Entity Information [Line Items] | ||
Document Type | 10-Q | |
Entity File Number | 1-7850 | |
Entity Registrant Name | Southwest Gas Corporation | |
Entity Incorporation, State or Country Code | CA | |
Entity Tax Identification Number | 88-0085720 | |
Entity Address, Address Line One | 8360 S. Durango Drive | |
Entity Address, Address Line Two | Post Office Box 98510 | |
Entity Address, City or Town | Las Vegas, | |
Entity Address, State or Province | NV | |
Entity Address, Postal Zip Code | 89193-8510 | |
City Area Code | (702) | |
Local Phone Number | 876-7237 | |
Entity Filer Category | Non-accelerated Filer | |
Entity Small Business | false | |
Entity Emerging Growth Company | false | |
Entity Central Index Key | 0000092416 | |
Document Fiscal Year Focus | 2023 | |
Document Fiscal Period Focus | Q3 | |
Amendment Flag | false | |
Current Fiscal Year End Date | --12-31 |
CONDENSED CONSOLIDATED BALANCE
CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Regulated operations plant: | ||
Gas plant | $ 9,892,766 | $ 9,453,907 |
Less: accumulated depreciation | (2,780,482) | (2,674,157) |
Construction work in progress | 272,969 | 244,750 |
Net regulated operations plant | 7,385,253 | 7,024,500 |
Other property and investments, net | 1,254,065 | 1,281,172 |
Current assets: | ||
Cash and cash equivalents | 104,939 | 123,078 |
Accounts receivable, net of allowance | 903,365 | 866,246 |
Accrued utility revenue | 44,600 | 88,100 |
Income taxes receivable, net | 4,268 | 8,738 |
Deferred purchased gas costs | 687,137 | 450,120 |
Prepaid and other current assets | 229,696 | 433,850 |
Current assets held for sale adjustment | 24,480 | 1,737,530 |
Total current assets | 1,998,485 | 3,707,662 |
Noncurrent assets: | ||
Goodwill | 787,433 | 787,250 |
Deferred income taxes | 253 | 82 |
Deferred charges and other assets | 410,793 | 395,948 |
Total noncurrent assets | 1,198,479 | 1,183,280 |
Total assets | 11,836,282 | 13,196,614 |
Capitalization: | ||
Common stock, $1 par (authorized - 120,000,000 shares; issued and outstanding - 71,515,428 and 67,119,143 shares) | 73,145 | 68,749 |
Additional paid-in capital | 2,539,759 | 2,287,183 |
Accumulated other comprehensive loss, net | (43,523) | (44,242) |
Retained earnings | 669,364 | 747,069 |
Total equity | 3,238,745 | 3,058,759 |
Redeemable noncontrolling interests | 145,157 | 159,349 |
Long-term debt, less current maturities | 5,235,539 | 4,403,299 |
Total capitalization | 8,619,441 | 7,621,407 |
Current liabilities: | ||
Current maturities of long-term debt | 42,335 | 44,557 |
Short-term debt | 57,500 | 1,542,806 |
Accounts payable | 255,251 | 662,090 |
Customer deposits | 47,206 | 51,182 |
Income taxes payable, net | 267 | 2,690 |
Accrued general taxes | 75,932 | 67,094 |
Accrued interest | 46,837 | 38,556 |
Other current liabilities | 527,201 | 369,743 |
Current liabilities held for sale | 0 | 644,245 |
Total current liabilities | 1,052,529 | 3,422,963 |
Deferred income taxes and other credits: | ||
Deferred income taxes and investment tax credits, net | 742,078 | 682,067 |
Accumulated removal costs | 454,000 | 445,000 |
Other deferred credits and other long-term liabilities | 968,234 | 1,025,177 |
Total deferred income taxes and other credits | 2,164,312 | 2,152,244 |
Total capitalization and liabilities | $ 11,836,282 | $ 13,196,614 |
CONDENSED CONSOLIDATED BALANC_2
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares | Sep. 30, 2023 | Dec. 31, 2022 |
Statement of Financial Position [Abstract] | ||
Common stock, par (in USD per share) | $ 1 | $ 1 |
Common stock, authorized (in shares) | 120,000,000 | 120,000,000 |
Common stock, issued (in shares) | 71,515,428 | 67,119,143 |
Common stock, outstanding (in shares) | 71,515,428 | 67,119,143 |
CONDENSED CONSOLIDATED STATEMEN
CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Operating revenues: | ||||||
Regulated operations revenues | $ 394,603 | $ 367,122 | $ 1,832,480 | $ 1,550,684 | $ 2,481,478 | $ 2,001,898 |
Utility infrastructure services revenues | 774,889 | 758,466 | 2,233,961 | 1,988,433 | 3,005,855 | 2,621,646 |
Total operating revenues | 1,169,492 | 1,125,588 | 4,066,441 | 3,539,117 | 5,487,333 | 4,623,544 |
Operating expenses: | ||||||
Net cost of gas sold | 170,056 | 100,991 | 908,646 | 547,769 | 1,159,937 | 682,449 |
Operations and maintenance | 126,851 | 154,236 | 404,554 | 479,330 | 561,990 | 618,026 |
Depreciation and amortization | 105,520 | 116,933 | 329,745 | 347,589 | 452,611 | 450,960 |
Taxes other than income taxes | 21,147 | 23,356 | 66,981 | 70,778 | 89,586 | 90,987 |
Utility infrastructure services expenses | 685,687 | 680,135 | 2,005,084 | 1,829,560 | 2,704,842 | 2,403,503 |
Goodwill impairment and loss on sale | 0 | 0 | 71,230 | 0 | 526,655 | 0 |
Total operating expenses | 1,109,261 | 1,075,651 | 3,786,240 | 3,275,026 | 5,495,621 | 4,245,925 |
Operating income (loss) | 60,231 | 49,937 | 280,201 | 264,091 | (8,288) | 377,619 |
Other income and (expenses): | ||||||
Net interest deductions | (71,998) | (64,373) | (218,679) | (165,942) | (295,487) | (203,939) |
Other income | 14,464 | 1,593 | 52,528 | 2 | 46,337 | 478 |
Total other income and (expenses) | (57,534) | (62,780) | (166,151) | (165,940) | (249,150) | (203,461) |
Income (loss) before income taxes | 2,697 | (12,843) | 114,050 | 98,151 | (257,438) | 174,158 |
Income tax expense (benefit) | (1,270) | (1,525) | 32,174 | 18,300 | (61,779) | 23,130 |
Net income (loss) | 3,967 | (11,318) | 81,876 | 79,851 | (195,659) | 151,028 |
Net income attributable to noncontrolling interests | 736 | 991 | 3,856 | 2,557 | 6,905 | 3,791 |
Net income (loss) attributable to Southwest Gas Holdings, Inc. | $ 3,231 | $ (12,309) | $ 78,020 | $ 77,294 | $ (202,564) | $ 147,237 |
Earnings (loss) per share: | ||||||
Basic (in USD per share) | $ 0.05 | $ (0.18) | $ 1.11 | $ 1.19 | $ (2.91) | $ 2.30 |
Diluted (in USD per share) | $ 0.04 | $ (0.18) | $ 1.10 | $ 1.19 | $ (2.91) | $ 2.30 |
Weighted average shares: | ||||||
Basic (in shares) | 71,626 | 67,157 | 70,488 | 65,004 | 69,660 | 63,905 |
Diluted (in shares) | 71,851 | 67,157 | 70,676 | 65,148 | 69,660 | 64,051 |
CONDENSED CONSOLIDATED STATEM_2
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Statement of Comprehensive Income [Abstract] | ||||||
Net income (loss) | $ 3,967 | $ (11,318) | $ 81,876 | $ 79,851 | $ (195,659) | $ 151,028 |
Defined benefit pension plans: | ||||||
Net actuarial gain | 0 | 0 | 0 | 0 | 3,099 | 44,974 |
Amortization of prior service cost | 33 | 34 | 99 | 100 | 132 | 282 |
Amortization of net actuarial loss | 253 | 6,616 | 760 | 19,847 | 7,374 | 28,321 |
Regulatory adjustment | (90) | (5,524) | (270) | (16,571) | (5,156) | (61,767) |
Net defined benefit pension plans | 196 | 1,126 | 589 | 3,376 | 5,449 | 11,810 |
Forward-starting interest rate swaps (“FSIRS”): | ||||||
Amounts reclassified into net income | 0 | 0 | 0 | 416 | 0 | 828 |
Net forward-starting interest rate swaps | 0 | 0 | 0 | 416 | 0 | 828 |
Foreign currency translation adjustments | (2,261) | (5,830) | 130 | (7,263) | 1,260 | (6,919) |
Total other comprehensive income, net of tax | (2,065) | (4,704) | 719 | (3,471) | 6,709 | 5,719 |
Comprehensive income (loss) | 1,902 | (16,022) | 82,595 | 76,380 | (188,950) | 156,747 |
Comprehensive income attributable to noncontrolling interests | 736 | 991 | 3,856 | 2,557 | 6,905 | 3,791 |
Comprehensive income (loss) attributable to Southwest Gas Holdings, Inc. | $ 1,166 | $ (17,013) | $ 78,739 | $ 73,823 | $ (195,855) | $ 152,956 |
CONDENSED CONSOLIDATED STATEM_3
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
CASH FLOW FROM OPERATING ACTIVITIES: | ||||
Net income (loss) | $ 81,876 | $ 79,851 | $ (195,659) | $ 151,028 |
Adjustments to reconcile net income (loss) to net cash provided by operating activities: | ||||
Depreciation and amortization | 329,745 | 347,589 | 452,611 | 450,960 |
Impairment of assets and other charges | 71,230 | 0 | 526,655 | 0 |
Deferred income taxes | 45,317 | 22,955 | (49,686) | 38,793 |
Gains on sale of property and equipment | (3,090) | (5,215) | (5,740) | (6,756) |
Changes in undistributed stock compensation | 8,557 | 7,855 | 10,148 | 9,473 |
Equity AFUDC | (82) | (912) | 365 | (912) |
Changes in current assets and liabilities: | ||||
Accounts receivable, net of allowances | (40,232) | (78,719) | (155,288) | (68,192) |
Accrued utility revenue | 43,500 | 43,600 | (3,300) | (1,600) |
Deferred purchased gas costs | (252,022) | (92,200) | (307,037) | (142,518) |
Accounts payable | (360,554) | (29,353) | (37,292) | 72,159 |
Accrued taxes | 12,687 | 18,352 | 12,264 | 5,673 |
Other current assets and liabilities | 315,728 | (1,039) | 108,914 | (113,537) |
Changes in deferred charges and other assets | 1,243 | 16,417 | 1,712 | 10,832 |
Changes in other liabilities and deferred credits | (55,469) | (25,826) | (56,128) | (42,186) |
Net cash provided by operating activities | 198,434 | 303,355 | 302,539 | 363,217 |
CASH FLOW FROM INVESTING ACTIVITIES: | ||||
Construction expenditures and property additions | (664,590) | (612,516) | (911,495) | (821,405) |
Acquisition of businesses, net of cash acquired | 0 | (18,809) | 0 | (1,542,674) |
Proceeds from the sale of business, net of cash sold | 1,022,483 | 0 | 1,022,483 | 0 |
Changes in customer advances | (6,974) | 23,222 | (8,690) | 31,256 |
Other | 6,147 | 4,005 | 19,964 | 7,506 |
Net cash provided by (used in) investing activities | 357,066 | (604,098) | 122,262 | (2,325,317) |
CASH FLOW FROM FINANCING ACTIVITIES: | ||||
Issuance of common stock, net | 249,238 | 459,051 | 252,015 | 461,880 |
Centuri distribution to redeemable noncontrolling interest | (39,894) | (39,649) | (39,894) | (39,649) |
Dividends paid | (130,232) | (118,980) | (171,815) | (154,910) |
Issuance of long-term debt, net | 1,043,602 | 770,240 | 1,341,167 | 775,976 |
Retirement of long-term debt | (168,127) | (422,356) | (245,685) | (468,205) |
Change in long-term credit facility and commercial paper | (50,000) | 8,000 | (138,000) | 138,000 |
Issuance of short-term debt | 450,000 | 0 | 450,000 | 1,850,000 |
Other changes in short-term debt | (1,937,747) | (380,253) | (1,923,687) | (593,253) |
Withholding remittance - share-based compensation | (1,742) | (2,105) | (2,299) | (2,115) |
Other, including principal payments on finance leases | (12,642) | (19,929) | (16,885) | (16,303) |
Net cash provided by (used in) financing activities | (597,544) | 254,019 | (495,083) | 1,951,421 |
Effects of currency translation on cash and cash equivalents | 102 | (701) | (51) | (739) |
Change in cash and cash equivalents | (41,942) | (47,425) | (70,333) | (11,418) |
Cash and cash equivalents included in current assets held for sale at beginning of period | 0 | 0 | ||
Cash and cash equivalents at beginning of period | 123,078 | 222,697 | 175,272 | 186,690 |
Cash and cash equivalents at end of period | 104,939 | 175,272 | 104,939 | 175,272 |
SUPPLEMENTAL INFORMATION: | ||||
Interest paid, net of amounts capitalized | 196,609 | 146,792 | 269,642 | 194,016 |
Income taxes paid, net | $ 5,957 | $ 10,317 | $ 7,641 | $ 6,860 |
CONDENSED CONSOLIDATED STATEM_4
CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands | Total | Southwest Gas Holdings, Inc. | Common stock shares | Additional paid-in capital | Accumulated other comprehensive loss | Retained earnings |
Beginning balance (in shares) at Dec. 31, 2021 | 60,422,000 | |||||
Beginning balance at Dec. 31, 2021 | $ 62,052 | $ 1,824,216 | $ (46,761) | $ 1,114,313 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Common stock issuances (in shares) | 6,642,000 | |||||
Common stock issuances | $ 6,642 | 459,034 | ||||
Foreign currency exchange translation adjustment | (7,263) | |||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 3,376 | |||||
FSIRS amounts reclassified to net income, net of tax | $ 416 | 416 | ||||
Net income (loss) | 77,294 | |||||
Dividends declared | (125,337) | |||||
Redemption value adjustments | 44,933 | |||||
Ending balance (in shares) at Sep. 30, 2022 | 67,064,000 | |||||
Ending balance at Sep. 30, 2022 | $ 3,412,915 | $ 68,694 | 2,283,250 | (50,232) | 1,111,203 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Dividends declared per common share (in USD per share) | $ 1.86 | |||||
Beginning balance (in shares) at Jun. 30, 2022 | 67,004,000 | |||||
Beginning balance at Jun. 30, 2022 | $ 68,634 | 2,279,493 | (45,528) | 1,156,253 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Common stock issuances (in shares) | 60,000 | |||||
Common stock issuances | $ 60 | 3,757 | ||||
Foreign currency exchange translation adjustment | (5,830) | |||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 1,126 | |||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | 0 | ||||
Net income (loss) | (12,309) | |||||
Dividends declared | (41,696) | |||||
Redemption value adjustments | 8,955 | |||||
Ending balance (in shares) at Sep. 30, 2022 | 67,064,000 | |||||
Ending balance at Sep. 30, 2022 | 3,412,915 | $ 68,694 | 2,283,250 | (50,232) | 1,111,203 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Dividends declared per common share (in USD per share) | $ 0.62 | |||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | |||||
Ending balance (in shares) at Sep. 30, 2023 | 71,515,428 | 71,515,000 | ||||
Ending balance at Sep. 30, 2023 | 3,238,745 | $ 73,145 | 2,539,759 | (43,523) | 669,364 | |
Beginning balance (in shares) at Dec. 31, 2022 | 67,119,143 | 67,119,000 | ||||
Beginning balance at Dec. 31, 2022 | $ 68,749 | 2,287,183 | (44,242) | 747,069 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Common stock issuances (in shares) | 4,396,000 | |||||
Common stock issuances | $ 4,396 | 252,576 | ||||
Foreign currency exchange translation adjustment | 130 | |||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 589 | |||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | 0 | ||||
Net income (loss) | 78,020 | |||||
Dividends declared | (133,879) | |||||
Redemption value adjustments | $ 21,846 | (21,846) | ||||
Ending balance (in shares) at Sep. 30, 2023 | 71,515,428 | 71,515,000 | ||||
Ending balance at Sep. 30, 2023 | 3,238,745 | $ 73,145 | 2,539,759 | (43,523) | 669,364 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Dividends declared per common share (in USD per share) | $ 1.86 | |||||
Beginning balance (in shares) at Jun. 30, 2023 | 71,473,000 | |||||
Beginning balance at Jun. 30, 2023 | $ 73,103 | 2,534,223 | (41,458) | 696,958 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Common stock issuances (in shares) | 42,000 | |||||
Common stock issuances | $ 42 | 5,536 | ||||
Foreign currency exchange translation adjustment | (2,261) | |||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 196 | |||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | 0 | ||||
Net income (loss) | 3,231 | |||||
Dividends declared | (44,584) | |||||
Redemption value adjustments | 13,759 | |||||
Ending balance (in shares) at Sep. 30, 2023 | 71,515,428 | 71,515,000 | ||||
Ending balance at Sep. 30, 2023 | $ 3,238,745 | $ 73,145 | $ 2,539,759 | $ (43,523) | $ 669,364 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Dividends declared per common share (in USD per share) | $ 0.62 |
CONDENSED CONSOLIDATED BALANC_3
CONDENSED CONSOLIDATED BALANCE SHEETS - Southwest - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Regulated operations plant: | ||
Gas plant | $ 9,892,766 | $ 9,453,907 |
Less: accumulated depreciation | (2,780,482) | (2,674,157) |
Construction work in progress | 272,969 | 244,750 |
Net regulated operations plant | 7,385,253 | 7,024,500 |
Other property and investments, net | 1,254,065 | 1,281,172 |
Current assets: | ||
Cash and cash equivalents | 104,939 | 123,078 |
Accounts receivable, net of allowance | 903,365 | 866,246 |
Accrued utility revenue | 44,600 | 88,100 |
Income taxes receivable, net | 4,268 | 8,738 |
Deferred purchased gas costs | 687,137 | 450,120 |
Prepaid and other current assets | 229,696 | 433,850 |
Current assets held for sale adjustment | 24,480 | 1,737,530 |
Total current assets | 1,998,485 | 3,707,662 |
Noncurrent assets: | ||
Goodwill | 787,433 | 787,250 |
Deferred charges and other assets | 410,793 | 395,948 |
Total noncurrent assets | 1,198,479 | 1,183,280 |
Total assets | 11,836,282 | 13,196,614 |
Capitalization: | ||
Common stock | 73,145 | 68,749 |
Additional paid-in capital | 2,539,759 | 2,287,183 |
Accumulated other comprehensive loss, net | (43,523) | (44,242) |
Retained earnings | 669,364 | 747,069 |
Total equity | 3,238,745 | 3,058,759 |
Long-term debt, less current maturities | 5,235,539 | 4,403,299 |
Total capitalization | 8,619,441 | 7,621,407 |
Current liabilities: | ||
Short-term debt | 57,500 | 1,542,806 |
Accounts payable | 255,251 | 662,090 |
Customer deposits | 47,206 | 51,182 |
Accrued general taxes | 75,932 | 67,094 |
Accrued interest | 46,837 | 38,556 |
Other current liabilities | 527,201 | 369,743 |
Total current liabilities | 1,052,529 | 3,422,963 |
Deferred income taxes and other credits: | ||
Deferred income taxes and investment tax credits, net | 742,078 | 682,067 |
Accumulated removal costs | 454,000 | 445,000 |
Other deferred credits and other long-term liabilities | 968,234 | 1,025,177 |
Total deferred income taxes and other credits | 2,164,312 | 2,152,244 |
Total capitalization and liabilities | 11,836,282 | 13,196,614 |
Southwest Gas Corporation | ||
Regulated operations plant: | ||
Gas plant | 9,892,766 | 9,453,907 |
Less: accumulated depreciation | (2,780,482) | (2,674,157) |
Construction work in progress | 272,969 | 244,750 |
Net regulated operations plant | 7,385,253 | 7,024,500 |
Other property and investments, net | 147,461 | 169,397 |
Current assets: | ||
Cash and cash equivalents | 70,970 | 51,823 |
Accrued utility revenue | 44,600 | 88,100 |
Income taxes receivable, net | 159 | 103 |
Deferred purchased gas costs | 687,137 | 450,120 |
Prepaid and other current assets | 191,212 | 401,789 |
Current assets held for sale adjustment | 24,480 | 0 |
Total current assets | 1,186,363 | 1,228,146 |
Noncurrent assets: | ||
Goodwill | 11,155 | 11,155 |
Deferred charges and other assets | 388,529 | 370,483 |
Total noncurrent assets | 399,684 | 381,638 |
Total assets | 9,118,761 | 8,803,681 |
Capitalization: | ||
Common stock | 49,112 | 49,112 |
Additional paid-in capital | 2,157,274 | 1,622,969 |
Accumulated other comprehensive loss, net | (37,672) | (38,261) |
Retained earnings | 966,582 | 935,355 |
Total equity | 3,135,296 | 2,569,175 |
Long-term debt, less current maturities | 3,500,684 | 3,251,296 |
Total capitalization | 6,635,980 | 5,820,471 |
Current liabilities: | ||
Short-term debt | 0 | 225,000 |
Customer deposits | 47,206 | 51,182 |
Accrued general taxes | 75,932 | 67,094 |
Accrued interest | 38,120 | 29,569 |
Other current liabilities | 256,365 | 150,817 |
Total current liabilities | 534,712 | 1,020,708 |
Deferred income taxes and other credits: | ||
Deferred income taxes and investment tax credits, net | 727,483 | 683,948 |
Accumulated removal costs | 454,000 | 445,000 |
Other deferred credits and other long-term liabilities | 766,586 | 833,554 |
Total deferred income taxes and other credits | 1,948,069 | 1,962,502 |
Total capitalization and liabilities | 9,118,761 | 8,803,681 |
Southwest Gas Corporation | Nonrelated Party | ||
Current assets: | ||
Accounts receivable, net of allowance | 167,805 | 234,081 |
Current liabilities: | ||
Accounts payable | 115,267 | 497,046 |
Southwest Gas Corporation | Related Party | ||
Current assets: | ||
Accounts receivable, net of allowance | 0 | 2,130 |
Current liabilities: | ||
Accounts payable | $ 1,822 | $ 0 |
CONDENSED CONSOLIDATED STATEM_5
CONDENSED CONSOLIDATED STATEMENTS OF INCOME - Southwest - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Regulated operations revenues | $ 1,169,492 | $ 1,125,588 | $ 4,066,441 | $ 3,539,117 | $ 5,487,333 | $ 4,623,544 |
Operating expenses: | ||||||
Net cost of gas sold | 170,056 | 100,991 | 908,646 | 547,769 | 1,159,937 | 682,449 |
Operations and maintenance | 126,851 | 154,236 | 404,554 | 479,330 | 561,990 | 618,026 |
Depreciation and amortization | 105,520 | 116,933 | 329,745 | 347,589 | 452,611 | 450,960 |
Taxes other than income taxes | 21,147 | 23,356 | 66,981 | 70,778 | 89,586 | 90,987 |
Total operating expenses | 1,109,261 | 1,075,651 | 3,786,240 | 3,275,026 | 5,495,621 | 4,245,925 |
Operating income (loss) | 60,231 | 49,937 | 280,201 | 264,091 | (8,288) | 377,619 |
Other income and (expenses): | ||||||
Net interest deductions | (71,998) | (64,373) | (218,679) | (165,942) | (295,487) | (203,939) |
Other income (deductions) | 14,464 | 1,593 | 52,528 | 2 | 46,337 | 478 |
Total other income and (expenses) | (57,534) | (62,780) | (166,151) | (165,940) | (249,150) | (203,461) |
Income (loss) before income taxes | 2,697 | (12,843) | 114,050 | 98,151 | (257,438) | 174,158 |
Income tax expense (benefit) | (1,270) | (1,525) | 32,174 | 18,300 | (61,779) | 23,130 |
Net income (loss) attributable to Southwest Gas Holdings, Inc. | 3,231 | (12,309) | 78,020 | 77,294 | (202,564) | 147,237 |
Southwest Gas Corporation | ||||||
Regulated operations revenues | 394,603 | 303,944 | 1,797,348 | 1,358,425 | 2,373,992 | 1,809,639 |
Operating expenses: | ||||||
Net cost of gas sold | 170,056 | 100,441 | 902,278 | 544,216 | 1,147,278 | 678,896 |
Operations and maintenance | 122,270 | 121,537 | 378,189 | 368,984 | 501,133 | 478,554 |
Depreciation and amortization | 69,268 | 64,390 | 218,763 | 192,434 | 289,372 | 258,144 |
Taxes other than income taxes | 21,147 | 20,693 | 65,491 | 62,443 | 86,245 | 82,652 |
Total operating expenses | 382,741 | 307,061 | 1,564,721 | 1,168,077 | 2,024,028 | 1,498,246 |
Operating income (loss) | 11,862 | (3,117) | 232,627 | 190,348 | 349,964 | 311,393 |
Other income and (expenses): | ||||||
Net interest deductions | (35,772) | (29,417) | (111,498) | (84,660) | (142,718) | (110,957) |
Other income (deductions) | 14,537 | 1,678 | 51,722 | (440) | 45,278 | (97) |
Total other income and (expenses) | (21,235) | (27,739) | (59,776) | (85,100) | (97,440) | (111,054) |
Income (loss) before income taxes | (9,373) | (30,856) | 172,851 | 105,248 | 252,524 | 200,339 |
Income tax expense (benefit) | (6,122) | (8,657) | 22,286 | 17,918 | 34,909 | 28,458 |
Net income (loss) attributable to Southwest Gas Holdings, Inc. | $ (3,251) | $ (22,199) | $ 150,565 | $ 87,330 | $ 217,615 | $ 171,881 |
CONDENSED CONSOLIDATED STATEM_6
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - Southwest - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Net income (loss) | $ 3,967 | $ (11,318) | $ 81,876 | $ 79,851 | $ (195,659) | $ 151,028 |
Defined benefit pension plans: | ||||||
Net actuarial gain | 0 | 0 | 0 | 0 | 3,099 | 44,974 |
Amortization of prior service cost | 33 | 34 | 99 | 100 | 132 | 282 |
Amortization of net actuarial loss | 253 | 6,616 | 760 | 19,847 | 7,374 | 28,321 |
Regulatory adjustment | (90) | (5,524) | (270) | (16,571) | (5,156) | (61,767) |
Net defined benefit pension plans | 196 | 1,126 | 589 | 3,376 | 5,449 | 11,810 |
Forward-starting interest rate swaps (“FSIRS”): | ||||||
Amounts reclassified into net income (loss) | 0 | 0 | 0 | 416 | 0 | 828 |
Net forward-starting interest rate swaps | 0 | 0 | 0 | 416 | 0 | 828 |
Total other comprehensive income, net of tax | (2,065) | (4,704) | 719 | (3,471) | 6,709 | 5,719 |
Comprehensive income (loss) | 1,902 | (16,022) | 82,595 | 76,380 | (188,950) | 156,747 |
Southwest Gas Corporation | ||||||
Net income (loss) | (3,251) | (22,199) | 150,565 | 87,330 | 217,615 | 171,881 |
Defined benefit pension plans: | ||||||
Net actuarial gain | 0 | 0 | 0 | 0 | 3,099 | 44,974 |
Amortization of prior service cost | 33 | 34 | 99 | 100 | 132 | 282 |
Amortization of net actuarial loss | 253 | 6,616 | 760 | 19,847 | 7,374 | 28,321 |
Regulatory adjustment | (90) | (5,524) | (270) | (16,571) | (5,156) | (61,767) |
Net defined benefit pension plans | 196 | 1,126 | 589 | 3,376 | 5,449 | 11,810 |
Forward-starting interest rate swaps (“FSIRS”): | ||||||
Amounts reclassified into net income (loss) | 0 | 0 | 0 | 416 | 0 | 828 |
Net forward-starting interest rate swaps | 0 | 0 | 0 | 416 | 0 | 828 |
Total other comprehensive income, net of tax | 196 | 1,126 | 589 | 3,792 | 5,449 | 12,638 |
Comprehensive income (loss) | $ (3,055) | $ (21,073) | $ 151,154 | $ 91,122 | $ 223,064 | $ 184,519 |
CONDENSED CONSOLIDATED STATEM_7
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - Southwest - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
CASH FLOW FROM OPERATING ACTIVITIES: | ||||
Net income | $ 81,876 | $ 79,851 | $ (195,659) | $ 151,028 |
Adjustments to reconcile net income to net cash provided by operating activities: | ||||
Depreciation and amortization | 329,745 | 347,589 | 452,611 | 450,960 |
Deferred income taxes | 45,317 | 22,955 | (49,686) | 38,793 |
Gain on sale of property | (3,090) | (5,215) | (5,740) | (6,756) |
Changes in undistributed stock compensation | 8,557 | 7,855 | 10,148 | 9,473 |
Equity AFUDC | (82) | (912) | 365 | (912) |
Changes in current assets and liabilities: | ||||
Accounts receivable, net of allowance | (40,232) | (78,719) | (155,288) | (68,192) |
Accrued utility revenue | 43,500 | 43,600 | (3,300) | (1,600) |
Deferred purchased gas costs | (252,022) | (92,200) | (307,037) | (142,518) |
Accounts payable | (360,554) | (29,353) | (37,292) | 72,159 |
Accrued taxes | 12,687 | 18,352 | 12,264 | 5,673 |
Other current assets and liabilities | 315,728 | (1,039) | 108,914 | (113,537) |
Changes in deferred charges and other assets | 1,243 | 16,417 | 1,712 | 10,832 |
Changes in other liabilities and deferred credits | (55,469) | (25,826) | (56,128) | (42,186) |
Net cash provided by operating activities | 198,434 | 303,355 | 302,539 | 363,217 |
CASH FLOW FROM INVESTING ACTIVITIES: | ||||
Construction expenditures and property additions | (664,590) | (612,516) | (911,495) | (821,405) |
Changes in customer advances | (6,974) | 23,222 | (8,690) | 31,256 |
Other | 6,147 | 4,005 | 19,964 | 7,506 |
Net cash provided by (used in) investing activities | 357,066 | (604,098) | 122,262 | (2,325,317) |
CASH FLOW FROM FINANCING ACTIVITIES: | ||||
Dividends paid | (130,232) | (118,980) | (171,815) | (154,910) |
Issuance of long-term debt, net | 1,043,602 | 770,240 | 1,341,167 | 775,976 |
Retirement of long-term debt | (168,127) | (422,356) | (245,685) | (468,205) |
Change in long-term credit facility and commercial paper | (50,000) | 8,000 | (138,000) | 138,000 |
Issuance of short-term debt | 450,000 | 0 | 450,000 | 1,850,000 |
Other changes in short-term debt | (1,937,747) | (380,253) | (1,923,687) | (593,253) |
Withholding remittance - share-based compensation | (1,742) | (2,105) | (2,299) | (2,115) |
Other | (12,642) | (19,929) | (16,885) | (16,303) |
Net cash provided by (used in) financing activities | (597,544) | 254,019 | (495,083) | 1,951,421 |
Change in cash and cash equivalents | (41,942) | (47,425) | (70,333) | (11,418) |
Cash and cash equivalents at beginning of period | 123,078 | 222,697 | 175,272 | 186,690 |
Cash and cash equivalents at end of period | 104,939 | 175,272 | 104,939 | 175,272 |
SUPPLEMENTAL INFORMATION: | ||||
Interest paid, net of amounts capitalized | 196,609 | 146,792 | 269,642 | 194,016 |
Income taxes paid (received), net | 5,957 | 10,317 | 7,641 | 6,860 |
Southwest Gas Corporation | ||||
CASH FLOW FROM OPERATING ACTIVITIES: | ||||
Net income | 150,565 | 87,330 | 217,615 | 171,881 |
Adjustments to reconcile net income to net cash provided by operating activities: | ||||
Depreciation and amortization | 218,763 | 192,434 | 289,372 | 258,144 |
Deferred income taxes | 43,348 | 26,579 | 59,156 | 44,016 |
Gain on sale of property | (136) | (1,503) | (136) | (1,503) |
Changes in undistributed stock compensation | 5,395 | 4,993 | 6,178 | 5,948 |
Equity AFUDC | 0 | (248) | 248 | (248) |
Changes in current assets and liabilities: | ||||
Accounts receivable, net of allowance | 66,275 | 66,048 | (64,187) | (188) |
Accrued utility revenue | 43,500 | 43,600 | (3,300) | (1,600) |
Deferred purchased gas costs | (237,017) | (90,206) | (305,786) | (140,524) |
Accounts payable | (346,579) | (71,899) | (31,404) | 28,401 |
Accrued taxes | 8,782 | 18,725 | 11,811 | 21,082 |
Other current assets and liabilities | 291,863 | (5,908) | 109,034 | (94,787) |
Changes in deferred charges and other assets | (21,750) | 1,112 | (24,556) | (8,905) |
Changes in other liabilities and deferred credits | (54,894) | (26,467) | (56,117) | (42,948) |
Net cash provided by operating activities | 168,115 | 244,590 | 207,928 | 238,769 |
CASH FLOW FROM INVESTING ACTIVITIES: | ||||
Construction expenditures and property additions | (581,190) | (485,825) | (778,496) | (672,410) |
Changes in customer advances | (6,974) | 23,222 | (8,690) | 31,255 |
Other | 670 | (1,005) | 8,592 | (1,102) |
Net cash provided by (used in) investing activities | (587,494) | (463,608) | (778,594) | (642,257) |
CASH FLOW FROM FINANCING ACTIVITIES: | ||||
Contributions from parent | 530,000 | 0 | 530,000 | 0 |
Dividends paid | (111,200) | (92,200) | (141,200) | (121,600) |
Issuance of long-term debt, net | 297,759 | 593,862 | 595,560 | 593,862 |
Retirement of long-term debt | 0 | (275,000) | 0 | (275,000) |
Change in long-term credit facility and commercial paper | (50,000) | 8,000 | (138,000) | 138,000 |
Issuance of short-term debt | 450,000 | 0 | 450,000 | 0 |
Other changes in short-term debt | (675,000) | (25,000) | (675,000) | (25,000) |
Withholding remittance - share-based compensation | (1,528) | (2,011) | (2,086) | (2,020) |
Other | (1,505) | (2,173) | (2,789) | (2,361) |
Net cash provided by (used in) financing activities | 438,526 | 205,478 | 616,485 | 305,881 |
Change in cash and cash equivalents | 19,147 | (13,540) | 45,819 | (97,607) |
Cash and cash equivalents at beginning of period | 51,823 | 38,691 | 25,151 | 122,758 |
Cash and cash equivalents at end of period | 70,970 | 25,151 | 70,970 | 25,151 |
SUPPLEMENTAL INFORMATION: | ||||
Interest paid, net of amounts capitalized | 99,425 | 76,141 | 131,264 | 113,161 |
Income taxes paid (received), net | $ 0 | $ 5 | $ 0 | $ (13,524) |
CONDENSED CONSOLIDATED STATEM_8
CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - Southwest - USD ($) $ in Thousands | Total | Southwest Gas Corporation | Common stock shares | Common stock shares Southwest Gas Corporation | Additional paid-in capital | Additional paid-in capital Southwest Gas Corporation | Accumulated other comprehensive loss | Accumulated other comprehensive loss Southwest Gas Corporation | Retained earnings | Retained earnings Southwest Gas Corporation |
Beginning balance (in shares) at Dec. 31, 2021 | 60,422,000 | 47,482,000 | ||||||||
Beginning balance at Dec. 31, 2021 | $ 62,052 | $ 49,112 | $ 1,824,216 | $ 1,618,911 | $ (46,761) | $ (46,913) | $ 1,114,313 | $ 906,827 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
Net income (loss) | 77,294 | 87,330 | ||||||||
Share-based compensation | 3,709 | (729) | ||||||||
Contributions from Southwest Gas Holdings, Inc. | 0 | |||||||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 3,376 | 3,376 | ||||||||
FSIRS amounts reclassified to net income, net of tax | $ 416 | $ 416 | 416 | 416 | ||||||
Dividends declared to Southwest Gas Holdings, Inc. | (125,337) | (93,000) | ||||||||
Ending balance (in shares) at Sep. 30, 2022 | 67,064,000 | 47,482,000 | ||||||||
Ending balance at Sep. 30, 2022 | 2,529,039 | $ 68,694 | $ 49,112 | 2,283,250 | 1,622,620 | (50,232) | (43,121) | 1,111,203 | 900,428 | |
Beginning balance (in shares) at Jun. 30, 2022 | 67,004,000 | 47,482,000 | ||||||||
Beginning balance at Jun. 30, 2022 | $ 68,634 | $ 49,112 | 2,279,493 | 1,622,006 | (45,528) | (44,247) | 1,156,253 | 952,725 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
Net income (loss) | (12,309) | (22,199) | ||||||||
Share-based compensation | 614 | (98) | ||||||||
Contributions from Southwest Gas Holdings, Inc. | 0 | |||||||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 1,126 | 1,126 | ||||||||
FSIRS amounts reclassified to net income, net of tax | 0 | 0 | 0 | 0 | ||||||
Dividends declared to Southwest Gas Holdings, Inc. | (41,696) | (30,000) | ||||||||
Ending balance (in shares) at Sep. 30, 2022 | 67,064,000 | 47,482,000 | ||||||||
Ending balance at Sep. 30, 2022 | 2,529,039 | $ 68,694 | $ 49,112 | 2,283,250 | 1,622,620 | (50,232) | (43,121) | 1,111,203 | 900,428 | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | 0 | ||||||||
Ending balance (in shares) at Sep. 30, 2023 | 71,515,428 | 71,515,000 | 47,482,000 | |||||||
Ending balance at Sep. 30, 2023 | 3,135,296 | $ 73,145 | $ 49,112 | 2,539,759 | 2,157,274 | (43,523) | (37,672) | 669,364 | 966,582 | |
Beginning balance (in shares) at Dec. 31, 2022 | 67,119,143 | 67,119,000 | 47,482,000 | |||||||
Beginning balance at Dec. 31, 2022 | $ 68,749 | $ 49,112 | 2,287,183 | 1,622,969 | (44,242) | (38,261) | 747,069 | 935,355 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
Net income (loss) | 78,020 | 150,565 | ||||||||
Share-based compensation | 4,305 | (438) | ||||||||
Contributions from Southwest Gas Holdings, Inc. | 530,000 | |||||||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 589 | 589 | ||||||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | 0 | 0 | 0 | ||||||
Dividends declared to Southwest Gas Holdings, Inc. | (133,879) | (118,900) | ||||||||
Ending balance (in shares) at Sep. 30, 2023 | 71,515,428 | 71,515,000 | 47,482,000 | |||||||
Ending balance at Sep. 30, 2023 | 3,135,296 | $ 73,145 | $ 49,112 | 2,539,759 | 2,157,274 | (43,523) | (37,672) | 669,364 | 966,582 | |
Beginning balance (in shares) at Jun. 30, 2023 | 71,473,000 | 47,482,000 | ||||||||
Beginning balance at Jun. 30, 2023 | $ 73,103 | $ 49,112 | 2,534,223 | 2,156,026 | (41,458) | (37,868) | 696,958 | 1,009,608 | ||
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||||||
Net income (loss) | 3,231 | (3,251) | ||||||||
Share-based compensation | 1,248 | (75) | ||||||||
Contributions from Southwest Gas Holdings, Inc. | 0 | |||||||||
Net actuarial gain arising during period, less amortization of unamortized benefit plan cost, net of tax | 196 | 196 | ||||||||
FSIRS amounts reclassified to net income, net of tax | $ 0 | 0 | 0 | 0 | ||||||
Dividends declared to Southwest Gas Holdings, Inc. | (44,584) | (39,700) | ||||||||
Ending balance (in shares) at Sep. 30, 2023 | 71,515,428 | 71,515,000 | 47,482,000 | |||||||
Ending balance at Sep. 30, 2023 | $ 3,135,296 | $ 73,145 | $ 49,112 | $ 2,539,759 | $ 2,157,274 | $ (43,523) | $ (37,672) | $ 669,364 | $ 966,582 |
Background, Organization, and S
Background, Organization, and Summary of Significant Accounting Policies | 9 Months Ended |
Sep. 30, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Background, Organization, and Summary of Significant Accounting Policies | Note 1 – Background, Organization, and Summary of Significant Accounting Policies Nature of Operations. Southwest Gas Holdings, Inc. (together with its subsidiaries, the “Company”) is a holding company, owning all of the shares of common stock of Southwest Gas Corporation (“Southwest” or the “natural gas distribution” segment), all of the shares of common stock of Centuri Group, Inc. (“Centuri,” or the “utility infrastructure services” segment), and until February 14, 2023, all of the shares of common stock of MountainWest Pipelines Holding Company (“MountainWest” or the “pipeline and storage” segment). In December 2022, the Company announced that its Board of Directors (the “Board”) unanimously determined to take strategic actions to simplify the Company’s portfolio of businesses. These actions included entering into a definitive agreement to sell 100% of MountainWest to Williams Partners Operating LLC (“Williams”) for $1.5 billion in total enterprise value, subject to certain adjustments (collectively, the “MountainWest sale”). The MountainWest sale closed on February 14, 2023. As part of this simplification strategy, the Company previously communicated that it would pursue a separation of Centuri and has continued to undertake significant efforts toward a near-term separation, including submitting a confidential draft registration statement on Form S-1 to the U.S. Securities and Exchange Commission (the “SEC”). See Note 8 - Dispositions for more information. Southwest is engaged in the business of purchasing, distributing, and transporting natural gas for customers in portions of Arizona, Nevada, and California. Public utility rates, practices, facilities, and service territories of Southwest are subject to regulatory oversight. The timing and amount of rate relief can materially impact results of operations. Natural gas purchases and the timing of related recoveries can materially impact liquidity. Results for the natural gas distribution segment are higher during winter periods due to the seasonality incorporated in its regulatory rate structures. Centuri is a strategic utility infrastructure services company dedicated to partnering with North America’s gas and electric providers to build and maintain the energy network that powers millions of homes across the United States (“U.S.”) and Canada. Centuri derives revenue primarily from installation, replacement, repair, and maintenance of energy networks. Centuri operates in the U.S., primarily as NPL, Neuco, Linetec, and Riggs Distler, and in Canada, primarily as NPL Canada. Utility infrastructure services activity is seasonal in many of Centuri’s operating areas. Peak periods are the summer and fall months in colder climate areas, such as the northeastern and midwestern U.S. and in Canada. In warmer climate areas, such as the southwestern and southeastern U.S., utility infrastructure services activity continues year round. Basis of Presentation. The condensed consolidated financial statements of Southwest Gas Holdings, Inc. and subsidiaries and Southwest (with its subsidiaries) included herein have been prepared pursuant to the rules and regulations of the SEC. The year-end 2022 condensed balance sheet data was derived from audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations. No substantive change has occurred with regard to the Company’s business segments on the whole during the recently completed quarter. The preparation of the condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. In the opinion of management, all adjustments, consisting of normal recurring items and estimates necessary for a fair statement of results for the interim periods, have been made. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the 2022 Annual Report to Stockholders, which is incorporated by reference into Southwest’s and the Company’s 2022 Annual Report on Form 10-K. In the first quarter of 2023, management identified a misstatement related to its accounting for the cost of gas sold at Southwest, thereby determining that Net cost of gas sold was overstated in 2021 and 2022 by $2.3 million and $5.7 million, respectively. Southwest made an adjustment in the first quarter of 2023 to reduce Net cost of gas sold and to increase its asset balance for Deferred purchased gas cost by $8 million. Also in the first quarter of 2023, the Company identified an approximately $21 million misstatement related to its initial estimation of the loss recorded upon reclassifying MountainWest as an asset held for sale during the year ended December 31, 2022. Consequently, the impairment loss for the year ended December 31, 2022 was understated by approximately $21 million, which was corrected in the first quarter of 2023. The Company (and Southwest, with respect to Net cost of gas sold) assessed, both quantitatively and qualitatively, the impact of these items on previously issued financial statements, concluding they were not material to any prior period or the current period financial statements. Other Property and Investments. Other property and investments on Southwest’s and the Company’s Condensed Consolidated Balance Sheets includes: (Thousands of dollars) September 30, 2023 December 31, 2022 Net cash surrender value of COLI policies $ 141,321 $ 136,245 Other property 6,140 33,152 Total Southwest Gas Corporation 147,461 169,397 Non-regulated property, equipment, and intangibles 1,748,625 1,677,218 Non-regulated accumulated provision for depreciation and amortization (677,442) (596,518) Other property and investments 35,421 31,075 Total Southwest Gas Holdings, Inc. $ 1,254,065 $ 1,281,172 Held for sale. In the first quarter of 2023, the Company and Southwest concluded certain assets associated with its previous corporate headquarters met the criteria to be classified as held for sale. As a result, the Company and Southwest reclassified approximately $27 million from Other property and investments to Current assets held for sale on their respective Condensed Consolidated Balance Sheets in the first quarter of 2023. In September 2023, the Company and Southwest recorded an estimated loss of $2.1 million on the assets based upon an updated fair value less costs to sell, which is recorded in Other income (deductions). Cash and Cash Equivalents. Cash and cash equivalents of the Company include $67.7 million and $30 million of money market fund investments at September 30, 2023 and December 31, 2022, respectively. The money market fund investments for Southwest were $66 million at September 30, 2023 and $17.6 million at December 31, 2022 , respectively. Noncash investing activities include capital expenditures that were not yet paid, thereby remaining in accounts payable, the amounts related to which declined by approximately $39.6 million and $35.2 million during the nine months ended September 30, 2023, for the Company and Southwest, respectively, and decreased $10.5 million and $2.9 million for each of these entities during the twelve months ended September 30, 2023. The Other change in short-term debt as presented on the Company’s and Southwest’s Condensed Consolidated Statements of Cash Flows is comprised of repayments of short-term debt and changes in the current portion of the credit facility. Deferred purchased gas costs. In July 2023, the Arizona Corporation Commission approved an increase in the gas cost balancing account (“GCBA”) rate, over a two-year period, as an enhancement to the existing gas cost recovery mechanism, given the $358 million Arizona account balance existing as of May 31, 2023. The increased GCBA rate of $0.20 per therm will support timely recovery of the existing balance. Based on the design of base tariff gas cost rates in Arizona and surcharges, the account balance existing as of that date is deemed generally recoverable over the next twelve months, and is therefore classified as a current asset on the balance sheets of the Company and Southwest. Prepaid and other current assets. Prepaid and other current assets for the Company and Southwest include, among other things, materials and operating supplies of $86.6 million at September 30, 2023 and $77.3 million at December 31, 2022 (carried at weighted average cost). Also included in the balance was $207 million as of December 31, 2022 in unrecovered purchased gas costs, with no corresponding asset balance as of September 30, 2023. Goodwill. Since December 31, 2022, management qualitatively assessed whether events during the first nine months of 2023 indicated it was more likely than not that the fair value of our reporting units was less than their carrying value, which if the case, could be an indication of a goodwill impairment. Through management’s assessments, no impairment was deemed to have occurred in the continuing segments of the Company. Goodwill in the Natural Gas Distribution and Utility Infrastructure Services segments is included in the respective Condensed Consolidated Balance Sheets as follows: (Thousands of dollars) Natural Gas Utility Infrastructure Total Company December 31, 2022 $ 11,155 $ 776,095 $ 787,250 Foreign currency translation adjustment — 183 183 September 30, 2023 $ 11,155 $ 776,278 $ 787,433 Other Current Liabilities . Management recognizes in its balance sheets various liabilities that are expected to be settled through future cash payment within the next twelve months, including amounts payable under regulatory mechanisms, customary accrued expenses for employee compensation and benefits, declared but unpaid dividends, and miscellaneous other accrued liabilities. Other current liabilities for the Company include $44.3 million and $41.6 million of dividends declared as of September 30, 2023 and December 31, 2022, respectively. Also included in the balance for the Company and Southwest was $36.6 million and $7.5 million related to a regulatory liability associated with the Arizona decoupling mechanism as of September 30, 2023 and December 31, 2022, respectively, as well as $41.5 million as of September 30, 2023 in accrued purchased gas cost, with no corresponding liability balance as of December 31, 2022. Other Income (Deductions). The following table provides the composition of significant items included in Other income (deductions) in Southwest’s and the Company’s Condensed Consolidated Statements of Income: Three Months Ended September 30, Nine Months Ended Twelve Months Ended (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Southwest Gas Corporation: Change in COLI policies $ (1,500) $ (1,500) $ 4,800 $ (8,700) $ 8,100 $ (5,700) Interest income 13,249 4,356 40,235 10,355 46,063 12,156 Equity AFUDC — 91 — 248 (248) 248 Other components of net periodic benefit cost 5,097 (188) 15,290 (563) 15,102 (4,068) Miscellaneous expense (2,309) (1,081) (8,603) (1,780) (23,739) (2,733) Southwest Gas Corporation - total other income (deductions) 14,537 1,678 51,722 (440) 45,278 (97) Centuri and Southwest Gas Holdings, Inc.: Foreign transaction gain (loss) 18 (182) (399) 35 543 32 Equity AFUDC — 246 82 664 (117) 664 Equity in earnings of unconsolidated investments 142 624 591 1,867 1,353 1,925 Miscellaneous income and (expense) (50) (523) 466 (1,746) (901) (1,661) Corporate and administrative (183) (250) 66 (378) 181 (385) Southwest Gas Holdings, Inc. - total other income (deductions) $ 14,464 $ 1,593 $ 52,528 $ 2 $ 46,337 $ 478 Interest income primarily relates to Southwest’s regulatory asset balances, including its deferred purchased gas cost mechanisms, the combined balance of which increased from $381 million as of September 30, 2022 to $687 million as of September 30, 2023. Refer also to Note 2 – Components of Net Periodic Benefit Cost . Miscellaneous expense for Southwest includes a variety of items, including reserves for uncompleted software projects and held-for-sale assets (discussed above) at Southwest deemed non-recoverable from its utility operations. Redeemable Noncontrolling Interests. In connection with the acquisition of Linetec in November 2018, the previous owner initially retained a 20% equity interest in that entity, with redemption being subject to certain rights based on the passage of time or upon the occurrence of certain triggering events. Effective in 2022, the Company, through Centuri, had the right, but not the obligation, to purchase at fair value (subject to a floor) a portion of the interest held by the previous owner, and in incremental amounts each year thereafter. In March 2022, the parties agreed to a partial redemption, reducing the noncontrolling interest to 15%, and in March 2023, agreeing once again to a partial 5% redemption (of the 15% then remaining). Centuri paid $39.9 million to the previous owner in April 2023, thereby reducing the balance continuing to be redeemable as of September 30, 2023 to 10% under the terms of the original agreement, with Centuri now owning a 90% stake in Linetec . Furthermore, certain members of Riggs Distler management have a 1.42% interest in Drum, which is redeemable, subject to certain rights based on the passage of time or upon the occurrence of certain triggering events. Significant changes in the value of the redeemable noncontrolling interests, above a floor determined at the establishment date, are recognized as they occur, and the carrying value is adjusted as necessary at each reporting date. The fair value is estimated using a market approach that utilizes certain financial metrics from guideline public companies of similar industry and operating characteristics. Based on the fair value model employed, the estimated redemption value of the Linetec redeemable noncontrolling interest increased approximately $21.8 million during the nine months ended September 30, 2023 (notwithstanding the change resulting from the partial redemption noted above), and the estimated redemption value of the Drum redeemable noncontrolling interest did not change from the balance at December 31, 2022. Valuation adjustments also impact retained earnings, as reflected in the Company’s Condensed Consolidated Statement of Equity, but do not impact net income. The following depicts changes to the balances of the redeemable noncontrolling interests: (Thousands of dollars): Linetec Drum Total Balance, December 31, 2022 $ 146,765 $ 12,584 $ 159,349 Net income attributable to redeemable noncontrolling interests 3,714 142 3,856 Redemption value adjustments 21,846 — 21,846 Redemption of equity interest from noncontrolling party (39,894) — (39,894) Balance, September 30, 2023 $ 132,431 $ 12,726 $ 145,157 Earnings Per Share. Basic earnings per share (“EPS”) in each period of this report were calculated by dividing net income attributable to Southwest Gas Holdings, Inc. by the weighted-average number of shares during those periods. Diluted EPS includes additional weighted-average common stock equivalents (performance shares and restricted stock units). Unless otherwise noted, the term “Earnings Per Share” refers to Basic EPS. A reconciliation of the denominator used in Basic and Diluted EPS calculations is shown in the following table: Three Months Ended Nine Months Ended Twelve Months Ended (In thousands) 2023 2022 2023 2022 2023 2022 Weighted average basic shares 71,626 67,157 70,488 65,004 69,660 63,905 Effect of dilutive securities: Restricted stock units (1)(2) 225 — 188 144 — 146 Weighted average diluted shares 71,851 67,157 70,676 65,148 69,660 64,051 (1) The number of anti-dilutive restricted stock units excluded from the calculation of diluted shares during the three months ended September 30, 2022 is 168,000, and 192,000 during the twelve months ended September 30, 2023. (2) The number of securities included 189,000 performance shares during the three months ended September 30, 2023, 160,000 and 135,000 performance shares during the nine months ending September 30, 2023 and 2022, and 135,000 performance shares during the twelve months ended September 30, 2022, the total of which was derived by assuming that target performance will be achieved during the relevant performance period. Income Taxes. The C ompany’s effective tax rate was (47.1)% for the three months ended September 30, 2023, compared to 11.9% for the corresponding period in 2022 primarily due to pre-tax income differences and the amortization of excess deferred income taxes. The Company’s effective tax rate was 28.2% for the nine months ended September 30, 2023, compared to 18.6% for the corresponding period in 2022 primarily due to amortization of excess deferred income taxes, company-owned life insurance (“COLI”), which is non-taxable and non-deductible, and the MountainWest sale, and also includes the impact of book versus tax basis differences related to the transaction (See Note 8 - Dispositions ). Southwest’s effective tax rate was 65.3% for the three months ended September 30, 2023, compared to 28.1% for the corresponding period in 2022 primarily due to pre-tax income differences, the amortization of excess deferred income taxes, and corporate-owned life insurance. Southwest’s effective tax rate was 12.9% for the nine months ended September 30, 2023, compared to 17.0% in the corresponding period in 2022, primarily due to the amortization of excess accumulated deferred income taxes and corporate-owned life insurance. In April 2023, the Internal Revenue Service (“IRS”) issued Revenue Procedure 2023-15, which provides a safe harbor method of accounting that taxpayers may use to determine whether expenditures to repair, maintain, replace, or improve natural gas transmission and distribution property must be capitalized for tax purposes. The Company and Southwest are currently reviewing this revenue procedure to determine the potential impact on their financial position, results of operations, and cash flows. Recent Accounting Standards Updates. |
Components of Net Periodic Bene
Components of Net Periodic Benefit Cost | 9 Months Ended |
Sep. 30, 2023 | |
Retirement Benefits [Abstract] | |
Components of Net Periodic Benefit Cost | Note 2 – Components of Net Periodic Benefit Cost Southwest has a noncontributory qualified retirement plan with defined benefits covering substantially all employees (those hired before 2022) and a separate unfunded supplemental retirement plan (“SERP”), which is limited to officers hired before 2022. Southwest also provides limited postretirement benefits other than pensions (“PBOP”) to its qualified retirees for health care, dental, and life insurance. The service cost component of net periodic benefit costs included in the table below is a component of an overhead loading process associated with the cost of labor. The overhead process ultimately results in allocation of service cost to the same accounts to which productive labor is charged. As a result, service costs become components of various accounts, primarily operations and maintenance expense, net regulated operations plant, and deferred charges and other assets for both the Company and Southwest. The other components of net periodic benefit cost are reflected in Other income (deductions) on the Condensed Consolidated Statements of Income of each entity. Variability in total net periodic benefit cost between periods, especially with regard to the Qualified Retirement Plan, is subject to changes in underlying actuarial assumptions between periods, notably the discount rate. Qualified Retirement Plan September 30, Three Months Nine Months Twelve Months 2023 2022 2023 2022 2023 2022 (Thousands of dollars) Service cost $ 6,460 $ 11,028 $ 19,380 $ 33,084 $ 30,406 $ 43,374 Interest cost 14,791 11,251 44,373 33,753 55,626 43,861 Expected return on plan assets (21,015) (19,978) (63,045) (59,934) (83,024) (78,022) Amortization of net actuarial loss 84 8,117 252 24,351 8,369 34,839 Net periodic benefit cost $ 320 $ 10,418 $ 960 $ 31,254 $ 11,377 $ 44,052 SERP September 30, Three Months Nine Months Twelve Months 2023 2022 2023 2022 2023 2022 (Thousands of dollars) Service cost $ 62 $ 106 $ 186 $ 318 $ 292 $ 450 Interest cost 531 360 1,593 1,080 1,954 1,437 Amortization of net actuarial loss 249 588 748 1,763 1,335 2,424 Net periodic benefit cost $ 842 $ 1,054 $ 2,527 $ 3,161 $ 3,581 $ 4,311 PBOP September 30, Three Months Nine Months Twelve Months 2023 2022 2023 2022 2023 2022 (Thousands of dollars) Service cost $ 317 $ 485 $ 951 $ 1,455 $ 1,437 $ 1,877 Interest cost 825 613 2,475 1,839 3,088 2,387 Expected return on plan assets (606) (807) (1,818) (2,421) (2,625) (3,230) Amortization of prior service costs 44 44 132 132 175 372 Net periodic benefit cost $ 580 $ 335 $ 1,740 $ 1,005 $ 2,075 $ 1,406 |
Revenue
Revenue | 9 Months Ended |
Sep. 30, 2023 | |
Revenue from Contract with Customer [Abstract] | |
Revenue | Note 3 – Revenue The following information about the Company’s revenues is presented by segment. Southwest encompasses the natural gas distribution segment and Centuri encompasses the utility infrastructure services segment. Natural Gas Distribution Segment : Southwest’s operating revenues included on the Condensed Consolidated Statements of Income of both the Company and Southwest include revenue from contracts with customers, which is shown below, disaggregated by customer type, in addition to other categories of revenue: Three Months Ended Nine Months Ended Twelve Months Ended September 30, (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Residential $ 215,376 $ 170,196 $ 1,277,363 $ 913,355 $ 1,688,802 $ 1,205,176 Small commercial 85,955 61,780 366,667 264,494 480,693 348,934 Large commercial 27,888 19,590 84,021 60,740 108,515 78,081 Industrial/other 16,596 13,319 52,165 34,064 68,995 46,025 Transportation 23,278 22,936 77,558 74,034 104,166 98,057 Revenue from contracts with customers 369,093 287,821 1,857,774 1,346,687 2,451,171 1,776,273 Alternative revenue program revenues (deferrals) 21,840 13,609 (72,251) 1,132 (91,861) 19,648 Other revenues (1) 3,670 2,514 11,825 10,606 14,682 13,718 Total Regulated operations revenues $ 394,603 $ 303,944 $ 1,797,348 $ 1,358,425 $ 2,373,992 $ 1,809,639 (1) Amounts include late fees and other miscellaneous revenues, and may also include the impact of certain regulatory mechanisms. Utility Infrastructure Services Segment : The following tables display Centuri’s revenue, reflected as Utility infrastructure services revenues on the Condensed Consolidated Statements of Income of the Company, representing revenue from contracts with customers disaggregated by service and contract types: Three Months Ended Nine Months Ended Twelve Months Ended September 30, (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Service Types: Gas infrastructure services $ 443,083 $ 467,751 $ 1,173,960 $ 1,147,302 $ 1,558,476 $ 1,487,806 Electric power infrastructure services 200,547 189,209 668,681 550,926 895,879 729,067 Other 131,259 101,506 391,320 290,205 551,500 404,773 Total Utility infrastructure services revenues $ 774,889 $ 758,466 $ 2,233,961 $ 1,988,433 $ 3,005,855 $ 2,621,646 Three Months Ended Nine Months Ended Twelve Months Ended September 30, (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Contract Types: Master services agreement $ 631,913 $ 637,582 $ 1,830,242 $ 1,700,416 $ 2,472,046 $ 2,193,195 Bid contract 142,976 120,884 403,719 288,017 533,809 428,451 Total Utility infrastructure services revenues $ 774,889 $ 758,466 $ 2,233,961 $ 1,988,433 $ 3,005,855 $ 2,621,646 Unit price contracts $ 440,787 $ 453,718 $ 1,191,889 $ 1,178,168 $ 1,621,852 $ 1,544,471 Fixed price contracts 165,637 117,983 521,722 333,313 686,448 451,374 Time and materials contracts 168,465 186,765 520,350 476,952 697,555 625,801 Total Utility infrastructure services revenues $ 774,889 $ 758,466 $ 2,233,961 $ 1,988,433 $ 3,005,855 $ 2,621,646 The following table provides information about contracts receivable and revenue earned on contracts in progress in excess of billings (contract assets), both of which are included within Accounts receivable, net of allowances, as well as amounts billed in excess of revenue earned on contracts (contract liabilities) at Centuri, which are included in Other current liabilities as of September 30, 2023 and December 31, 2022 on the Company’s Condensed Consolidated Balance Sheets: (Thousands of dollars) September 30, 2023 December 31, 2022 Contracts receivable, net $ 452,728 $ 394,022 Revenue earned on contracts in progress in excess of billings 282,759 238,059 Amounts billed in excess of revenue earned on contracts 51,710 35,769 The revenue earned on contracts in progress in excess of billings primarily relates to Centuri’s right to consideration for work completed but not billed and/or approved for billing at the reporting date. These contract assets are transferred to contracts receivable when the rights become unconditional. Contract assets increased $44.7 million during 2023 due primarily to continued revenue growth. The amounts billed in excess of revenue earned primarily relate to the advance consideration received from customers for which work has not yet been completed. The change in this contract liability balance from December 31, 2022 to September 30, 2023 increased $15.9 million due to amounts received for services not yet performed, net of revenue recognized. For contracts that have an original duration of one year or less, Centuri uses the practical expedient applicable to such contracts and does not consider/compute an interest component based on the time value of money. Furthermore, because of the short duration of these contracts, Centuri has not disclosed the transaction price for the remaining performance obligations as of the end of each reporting period or when the Company expects to recognize the revenue. As of September 30, 2023, Centuri h ad 57 fixed price contracts with an original duration of more than one year. The aggregate amount of the transaction price allocated to the unsatisfied performance obligations of these contracts as of September 30, 2023 was $383 million . Centuri expects to recognize the remaining performance obligations over approximately the next two years ; however, the timing of that recognition is largely within the control of the customer, including when the necessary materials required to complete the work are provided by the customer. Utility infrastructure services contracts receivable consists of the following: (Thousands of dollars) September 30, 2023 December 31, 2022 Billed on completed contracts and contracts in progress $ 453,434 $ 395,771 Other receivables 3,906 2,569 Contracts receivable, gross 457,340 398,340 Allowance for doubtful accounts (4,612) (4,318) Contracts receivable, net $ 452,728 $ 394,022 |
Common Stock
Common Stock | 9 Months Ended |
Sep. 30, 2023 | |
Equity [Abstract] | |
Common Stock | Note 4 – Common Stock Shares of the Company’s common stock are publicly traded on the New York Stock Exchange, under the ticker symbol “SWX.” Share-based compensation related to Southwest and Centuri is based on stock awards to be issued in shares of Southwest Gas Holdings, Inc. On April 8, 2021, the Company entered into a Sales Agency Agreement between the Company and BNY Mellon Capital Markets, LLC and J.P. Morgan Securities LLC (the “Equity Shelf Program”) for the offer and sale of up to $500 million of common stock from time to time in an at-the-market offering program. The shares are issued pursuant to the Company’s automatic shelf registration statement on Form S-3 (File No. 333-251074), or “the Universal Shelf.” There was no a ctivity under the Equity Shelf Program during the quarter ended September 30, 2023. The following table provides the life-to-date activity under that program through September 30, 2023: Gross proceeds $ 158,180,343 Less: agent commissions (1,581,803) Net proceeds $ 156,598,540 Number of shares sold 2,302,407 Weighted average price per share $ 68.70 As of September 30, 2023, the Company had approximately $342 million in common stock available for issuance under the program. In March 2023, the Company issued, through a separate prospectus supplement under the Universal Shelf, an aggregate of 4.1 million shares of common stock, at an underwritten public offering price of $60.12 per share, resulting in net proceeds to the Company of $238.4 million, net of an underwriter’s discount of $8.3 million and estimated expenses of the offering. Approximately $140 million (2.3 million shares) of the offering was purchased by certain funds affiliated with Carl C. Icahn, a significant stockholder beneficially owning more than 15% of the outstanding stock of the Company as of September 30, 2023. The Company used the net proceeds to repay outstanding amounts under the Company’s credit facility, with the remaining proceeds used to pay off residual amounts outstanding under the loan entered into in November 2021 in connection with the acquisition of MountainWest and the remainder, for working capital and general corporate purposes. During the nine months ended September 30, 2023, the Company issued approximately 61,000 shares of common stock through the Restricted Stock/Unit Plan and Omnibus Incentive Plan. Additionally, during the nine months ended September 30, 2023, the Company issued 222,000 shares of common stock through the Dividend Reinvestment and Stock Purchase Plan, raising approximately $12.7 million . |
Debt
Debt | 9 Months Ended |
Sep. 30, 2023 | |
Debt Disclosure [Abstract] | |
Debt | Note 5 – Debt Long-Term Debt Long-term debt is recognized in the Company’s and Southwest’s Condensed Consolidated Balance Sheets generally at the carrying value of the obligations outstanding. Details surrounding the fair value and individual carrying values of instruments are provided in the table that follows. September 30, 2023 December 31, 2022 Carrying Fair Carrying Fair (Thousands of dollars) Southwest Gas Corporation: Debentures: 8% Series, due 2026 $ 75,000 $ 77,489 $ 75,000 $ 80,027 Medium-term notes, 7.92% series, due 2027 25,000 26,063 25,000 26,840 Medium-term notes, 6.76% series, due 2027 7,500 7,533 7,500 7,662 Notes, 5.8%, due 2027 300,000 300,300 300,000 305,913 Notes, 3.7%, due 2028 300,000 274,884 300,000 275,043 Notes, 5.45%, due 2028 300,000 295,212 — — Notes, 2.2%, due 2030 450,000 353,831 450,000 353,763 Notes, 4.05%, due 2032 600,000 518,934 600,000 527,052 Notes, 6.1%, due 2041 125,000 113,156 125,000 113,184 Notes, 4.875%, due 2043 250,000 193,110 250,000 195,703 Notes, 3.8%, due 2046 300,000 203,553 300,000 209,169 Notes, 4.15%, due 2049 300,000 210,048 300,000 218,712 Notes, 3.18%, due 2051 300,000 172,647 300,000 185,523 Unamortized discount and debt issuance costs (30,357) (29,471) 3,302,143 3,003,029 Revolving credit facility and commercial paper — — 50,000 50,000 Industrial development revenue bonds: Tax-exempt Series A, due 2028 50,000 50,000 50,000 50,000 2003 Series A, due 2038 50,000 50,000 50,000 50,000 2008 Series A, due 2038 50,000 50,000 50,000 50,000 2009 Series A, due 2039 50,000 50,000 50,000 50,000 Unamortized discount and debt issuance costs (1,459) (1,733) 198,541 198,267 Less: current maturities — — Southwest Gas Corporation total long-term debt, less current maturities 3,500,684 3,251,296 Southwest Gas Holdings, Inc.: SWH term loan facility 550,000 550,000 — — Centuri secured term loan facility 997,100 994,607 1,008,550 995,852 Centuri secured revolving credit facility 143,881 143,918 81,955 82,315 Other debt obligations 104,240 97,261 126,844 118,314 Unamortized discount and debt issuance costs (18,031) (20,789) Less: current maturities (42,335) (44,557) Southwest Gas Holdings, Inc. total long-term debt, less current maturities $ 5,235,539 $ 4,403,299 Southwest has a $400 million credit facility that is scheduled to expire in April 2025. Southwest designates $150 million of associated capacity as long-term debt and the remaining $250 million for working capital purposes. Interest rates for the credit facility are calculated at either the Secured Overnight Financing Rate (“SOFR”) or an “alternate base rate,” plus in each case an applicable margin that is determined based on Southwest’s senior unsecured debt rating. At September 30, 2023, the applicable margi n is 1.125% for loans bearing interest with reference to SOFR and 0.125% for loans bearing interest with reference to the alternative base rate. At September 30, 2023, no borrowings were outstanding on the long-term portion (including under the commercial paper program), nor under the short-t erm portion of the facility. Centuri has a $1.545 billion secured revolving credit and term loan multi-currency facility. Amounts can be borrowed in either Canadian or U.S. dollars. The revolving credit facility matures on August 27, 2026 and the term loan facility matures on August 27, 2028 . Interest rates for the revolving credit facility and term loan facility are based on either a “base rate,” SOFR or the Canadian Dollar Offered Rate (“CDOR”), plus an applicable margin. The capacity of the line of credit portion of the facility is $400 million; related amounts borrowed and repaid are available to be re-borrowed. The term loan portion of the facility has a limit of $1.145 billion . The obligations under the credit agreement are secured by present and future ownership interests in substantially all direct and indirect subsidiaries of Centuri, substantially all of the tangible and intangible personal property of each borrower, certain of their direct and indirect subsidiaries, and all products, profits, and proceeds of the foregoing. Centuri’s assets securing the facility at September 30, 2023 totaled $2.6 billion . At September 30, 2023, $1.141 billion in borrowings were outstanding under Centuri’s combined secured revolving credit and term loan facility. In March 2023, Southwest issued $300 million aggregate principal amount of 5.450% Senior Notes (the “March 2023 Notes”). The notes will mature in March 2028. Southwest used the net proceeds to repay amounts outstanding under its credit facility and the remainder for general corporate purposes. In April 2023, Southwest Gas Holdings, Inc. entered into a $550 million Term Loan Credit Agreement (the “Term Loan”) that matures in October 2024. Interest rates for the Term Loan are calculated, at the Company’s option, at either SOFR plus an adjustment of 0.100% or the “alternate base rate,” plus in each case an applicable margin. Loans bearing interest with reference to SOFR have an applicable margin of 1.300% and loans bearing interest with reference to the alternate base rate have an applicable margin of 0.300%. SOFR is calculated with a floor of 0.000% and alternative base rate is calculated with a floor of 1.000%. Southwest Gas Holdings, Inc. utilized a majority of the proceeds to make an equity contribution to Southwest. On April 17, 2023, Southwest utilized the equity contribution to repay, in full, amounts outstanding under its then existing $450 million 364-day term loan, with the remainder of the equity contribution used for working capital and general corporate purposes. Short-Term Debt Southwest Gas Holdings, Inc. has a $300 million credit facility that is scheduled to expire in December 2026 and is primarily used for short-term financing needs. Interest rates for the credit facility are calculated at either SOFR or the “alternate base rate,” plus in each case an applicable margin. There was $57.5 million outstanding under this credit facility as of September 30, 2023. |
Other Comprehensive Income and
Other Comprehensive Income and Accumulated Other Comprehensive Income | 9 Months Ended |
Sep. 30, 2023 | |
Equity [Abstract] | |
Other Comprehensive Income and Accumulated Other Comprehensive Income | Note 6 – Other Comprehensive Income and Accumulated Other Comprehensive Income The following information presents the Company’s Other comprehensive income (loss), both before and after-tax impacts, within the Condensed Consolidated Statements of Comprehensive Income, which also impact Accumulated other comprehensive income (“AOCI”) in the Condensed Consolidated Balance Sheets and the Condensed Consolidated Statements of Equity. Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss) Three Months Ended Three Months Ended (Thousands of dollars) Before- Tax Net-of- Before- Tax Net-of- Defined benefit pension plans: Amortization of prior service cost $ 44 $ (11) $ 33 $ 44 $ (10) $ 34 Amortization of net actuarial (gain)/loss 333 (80) 253 8,705 (2,089) 6,616 Regulatory adjustment (118) 28 (90) (7,268) 1,744 (5,524) Total other comprehensive income (loss) - Southwest Gas Corporation 259 (63) 196 1,481 (355) 1,126 Foreign currency translation adjustments: Translation adjustments (2,261) — (2,261) (5,830) — (5,830) Foreign currency other comprehensive income (loss) (2,261) — (2,261) (5,830) — (5,830) Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ (2,002) $ (63) $ (2,065) $ (4,349) $ (355) $ (4,704) Nine Months Ended Nine Months Ended (Thousands of dollars) Before- Tax Net-of- Before- Tax Net-of- Defined benefit pension plans: Amortization of prior service cost $ 132 $ (33) $ 99 $ 132 $ (32) $ 100 Amortization of net actuarial (gain)/loss 1,000 (240) 760 26,114 (6,267) 19,847 Regulatory adjustment (356) 86 (270) (21,804) 5,233 (16,571) Pension plans other comprehensive income (loss) 776 (187) 589 4,442 (1,066) 3,376 FSIRS (designated hedging activities): Amounts reclassified into net income — — — 545 (129) 416 FSIRS other comprehensive income (loss) — — — 545 (129) 416 Total other comprehensive income (loss) - Southwest Gas Corporation 776 (187) 589 4,987 (1,195) 3,792 Foreign currency translation adjustments: Translation adjustments 130 — 130 (7,263) — (7,263) Foreign currency other comprehensive income (loss) 130 — 130 (7,263) — (7,263) Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ 906 $ (187) $ 719 $ (2,276) $ (1,195) $ (3,471) Twelve Months Ended Twelve Months Ended (Thousands of dollars) Before- Tax Net-of- Before- Tax Net-of- Defined benefit pension plans: Net actuarial gain/(loss) $ 4,079 $ (980) $ 3,099 $ 59,176 $ (14,202) $ 44,974 Amortization of prior service cost 175 (43) 132 372 (90) 282 Amortization of net actuarial (gain)/loss 9,704 (2,330) 7,374 37,263 (8,942) 28,321 Regulatory adjustment (6,784) 1,628 (5,156) (81,273) 19,506 (61,767) Pension plans other comprehensive income (loss) 7,174 (1,725) 5,449 15,538 (3,728) 11,810 FSIRS (designated hedging activities): Amounts reclassified into net income — — — 1,087 (259) 828 FSIRS other comprehensive income (loss) — — — 1,087 (259) 828 Total other comprehensive income (loss) - Southwest Gas Corporation 7,174 (1,725) 5,449 16,625 (3,987) 12,638 Foreign currency translation adjustments: Translation adjustments 1,260 — 1,260 (6,919) — (6,919) Foreign currency other comprehensive income (loss) 1,260 — 1,260 (6,919) — (6,919) Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ 8,434 $ (1,725) $ 6,709 $ 9,706 $ (3,987) $ 5,719 (1) Tax amounts are calculated using a 24% rate. The Company has elected to indefinitely reinvest, in Canada, the earnings of Centuri’s Canadian subsidiaries, thus precluding deferred taxes on such earnings. As a result of this assertion, and no repatriation of earnings anticipated, the Company is not recognizing a tax effect or presenting a tax expense or benefit for currency translation adjustments reported in Other comprehensive income (loss). The following table represents a rollforward of AOCI, presented on the Company’s Condensed Consolidated Balance Sheets and its Condensed Consolidated Statements of Equity: Defined Benefit Plans Foreign Currency Items (Thousands of dollars) Before-Tax Tax After-Tax Before-Tax Tax After-Tax AOCI Beginning Balance AOCI December 31, 2022 $ (50,342) $ 12,081 $ (38,261) $ (5,981) $ — $ (5,981) $ (44,242) Translation adjustments — — — 130 — 130 130 Amortization of prior service cost (1) 132 (33) 99 — — — 99 Amortization of net actuarial loss (1) 1,000 (240) 760 — — — 760 Regulatory adjustment (2) (356) 86 (270) — — — (270) Net current period other comprehensive income (loss) attributable to Southwest Gas Holdings, Inc. 776 (187) 589 130 — 130 719 Ending Balance AOCI September 30, 2023 $ (49,566) $ 11,894 $ (37,672) $ (5,851) $ — $ (5,851) $ (43,523) (1) These AOCI components are included in the computation of net periodic benefit cost (see Note 2 – Components of Net Periodic Benefit Cost for additional details). (2) The regulatory adjustment represents the portion of the activity above that is expected to be recovered through rates in the future (the related regulatory asset is included in Deferred charges and other assets on the Company’s Condensed Consolidated Balance Sheets). (3) Tax amounts are calculated using a 24% rate. The following table represents a rollforward of AOCI, presented on Southwest’s Condensed Consolidated Balance Sheets: Defined Benefit Plans (Thousands of dollars) Before-Tax Tax After-Tax Beginning Balance AOCI December 31, 2022 $ (50,342) $ 12,081 $ (38,261) Amortization of prior service cost (4) 132 (33) 99 Amortization of net actuarial loss (4) 1,000 (240) 760 Regulatory adjustment (5) (356) 86 (270) Net current period other comprehensive income attributable to Southwest Gas Corporation 776 (187) 589 Ending Balance AOCI September 30, 2023 $ (49,566) $ 11,894 $ (37,672) (4) These AOCI components are included in the computation of net periodic benefit cost (see Note 2 – Components of Net Periodic Benefit Cost for additional details). (5) The regulatory adjustment represents the portion of the activity above that is expected to be recovered through rates in the future (the related regulatory asset is included in Deferred charges and other assets on Southwest’s Condensed Consolidated Balance Sheets). (6) Tax amounts are calculated using a 24% rate. The following table represents amounts (before income tax impacts) included in AOCI (in the tables above), that have not yet been recognized in net periodic benefit cost: (Thousands of dollars) September 30, 2023 December 31, 2022 Net actuarial loss $ (359,113) $ (360,113) Prior service cost (1,221) (1,353) Less: amount recognized in regulatory assets 310,768 311,124 Recognized in AOCI $ (49,566) $ (50,342) |
Segment Information
Segment Information | 9 Months Ended |
Sep. 30, 2023 | |
Segment Reporting [Abstract] | |
Segment Information | Note 7 – Segment Information The Company has two reportable segments. Southwest comprises the natural gas distribution segment and Centuri comprises the utility infrastructure services segment. As a result of the MountainWest sale in February 2023 (previously comprising the pipeline and storage segment), the information for the nine and twelve months ended September 30, 2023 presented below for MountainWest reflects activity from January 1, 2023 through February 13, 2023 (the last full day of its ownership by the Company). Centuri accounts for services provided to Southwest at contractual prices. Accounts receivable for these services, which are not eliminated during consolidation, are presented in the table below: (Thousands of dollars) September 30, 2023 December 31, 2022 Centuri accounts receivable for services provided to Southwest $ 11,764 $ 18,067 In order to reconcile the table below to net income (loss) as disclosed in the Condensed Consolidated Statements of Income, an Other column is included associated with impacts of corporate and administrative activities related to Southwest Gas Holdings, Inc. The financial information pertaining to the natural gas distribution, utility infrastructure services, and pipeline and storage segments are as follows: (Thousands of dollars) Natural Gas Utility Infrastructure Pipeline and Storage Other Total Three Months Ended September 30, 2023 Revenues from external customers $ 394,603 $ 745,639 $ — $ — $ 1,140,242 Intersegment revenues — 29,250 — — 29,250 Total $ 394,603 $ 774,889 $ — $ — $ 1,169,492 Segment net income (loss) $ (3,251) $ 17,956 $ — $ (11,474) $ 3,231 Three Months Ended September 30, 2022 Revenues from external customers $ 303,944 $ 721,910 $ 63,178 $ — $ 1,089,032 Intersegment revenues — 36,556 — — 36,556 Total $ 303,944 $ 758,466 $ 63,178 $ — $ 1,125,588 Segment net income (loss) $ (22,199) $ 14,345 $ 12,320 $ (16,775) $ (12,309) (Thousands of dollars) Natural Gas Utility Infrastructure Pipeline and Storage Other Total Nine Months Ended September 30, 2023 Revenues from external customers $ 1,797,348 $ 2,145,601 $ 35,132 $ — $ 3,978,081 Intersegment revenues — 88,360 — — 88,360 Total $ 1,797,348 $ 2,233,961 $ 35,132 $ — $ 4,066,441 Segment net income (loss) $ 150,565 $ 24,902 $ (16,288) $ (81,159) $ 78,020 Nine Months Ended September 30, 2022 Revenues from external customers $ 1,358,425 $ 1,889,573 $ 192,259 $ — $ 3,440,257 Intersegment revenues — 98,860 — — 98,860 Total $ 1,358,425 $ 1,988,433 $ 192,259 $ — $ 3,539,117 Segment net income (loss) $ 87,330 $ (4,400) $ 44,326 $ (49,962) $ 77,294 (Thousands of dollars) Natural Gas Utility Infrastructure Pipeline and Storage Other Total Twelve Months Ended September 30, 2023 Revenues from external customers $ 2,373,992 $ 2,881,697 $ 107,486 $ — $ 5,363,175 Intersegment revenues — 124,158 — — 124,158 Total $ 2,373,992 $ 3,005,855 $ 107,486 $ — $ 5,487,333 Segment net income (loss) $ 217,615 $ 31,367 $ (344,347) $ (107,199) $ (202,564) Twelve Months Ended September 30, 2022 Revenues from external customers $ 1,809,639 $ 2,495,169 $ 192,259 $ — $ 4,497,067 Intersegment revenues — 126,477 — — 126,477 Total $ 1,809,639 $ 2,621,646 $ 192,259 $ — $ 4,623,544 Segment net income (loss) $ 171,881 $ 3,223 $ 44,326 $ (72,193) $ 147,237 The corporate and administrative activities for Southwest Gas Holdings, Inc. in the three months ending September 30, 2023 include approximately $10 million of interest expense, including amounts incurred under the $550 million Term Loan entered into in April 2023, along with $3 million in costs associated with the planned separation of Centuri, offset by tax benefits experienced during the quarter. The nine-month and twelve-month periods ended September 30, 2023 incrementally include, among other things, additional amounts related to the sale agreement with Williams in regard to MountainWest, including a charge of $28.4 million from the post-closing rate case settlement agreement for MountainWest Overthrust Pipeline; and an additional $21 million reflecting the final post-closing payment of $7.4 million related to cash and net working capital balances above/below a contract benchmark, with the remaining charge associated with other changes in the assets and liabilities that were not subject to post-closing payment true-up provisions. The post-closing payment of $7.4 million returned approximately the same amount initially paid by Williams to the Company at closing. Other corporate and administrative amounts during the year-to-date period also reflect residual costs associated with or as a result of the MountainWest sale, as well as $32 million of interest expense, including amounts noted above in the third quarter of 2023 and amounts under the loan entered into by Southwest Gas Holdings, Inc. in November 2021 in connection with the acquisition of MountainWest prior to it being paid in full in March 2023 (including $2.5 million in debt issuance costs written off when the debt was repaid). The twelve-month period ended September 30, 2023 included $52 million of interest expense including the aforementioned MountainWest acquisition loan, $7.3 million in costs associated with the planned separation of Centuri, as well as $5.7 million in combined costs associated with stockholder activism and the associated proxy contest, and costs of a strategic review initiative initiated in 2022. The amounts related to the MountainWest sale, including the rate case settlement, and post-closing adjustments, are included in Goodwill impairment and loss on sale on the Company’s Condensed Consolidated Statement of Income. |
Dispositions
Dispositions | 9 Months Ended |
Sep. 30, 2023 | |
Discontinued Operations and Disposal Groups [Abstract] | |
Dispositions | Note 8 - Dispositions Dispositions In December 2022, the Company announced that the Board unanimously determined to take strategic actions to simplify the Company’s portfolio of businesses. These actions included entering into a definitive agreement to sell 100% of MountainWest to Williams for $1.5 billion in total enterprise value, subject to certain adjustments. The MountainWest sale closed on February 14, 2023. As part of this simplification strategy, the Company previously communicated that it would pursue a separation of Centuri. In September 2023, the Company announced that Centuri Holdings, Inc., a wholly owned subsidiary of the Company formed for purposes of completing the separation (“Centuri Holdings”), had confidentially submitted a draft Registration Statement on Form S-1 with the SEC for a proposed initial public offering (“IPO”) of newly issued shares of Centuri Holdings common stock. The IPO is subject to market and other conditions, the completion of the SEC's review process, and the Board’s approval to proceed with the transaction. In the event an IPO is executed, the Company expects to maintain the option to either spin Centuri on a tax-free or taxable basis or sell down any remaining stake in a series of taxable sell downs following the IPO once the applicable lock-up period expires. The Company will continue to evaluate options for the separation following any IPO. The fair value of the MountainWest assets held-for-sale was previously estimated based on the preliminary closing statement and subject to certain adjustments, including a post-closing payment between the parties related to final working capital balances. The amount of the post-closing payment was finalized in May 2023. The Company recognized an additional loss on As referred to in Note 7 – Segment Information |
Subsequent Events
Subsequent Events | 9 Months Ended |
Sep. 30, 2023 | |
Subsequent Events [Abstract] | |
Subsequent Events | Note 9 - Subsequent Events On November 3, 2023, the Board authorized a dividend of one preferred stock purchase right (a “Right”) for each outstanding share of common stock, $1 par value per share, of the Company (the “Common Stock”). The dividend is payable on November 17, 2023 (the “Record Date”) to holders of record of Common Stock as of 5:00 P.M., New York City time, on the Record Date. The description and terms of the Rights are set forth in a Tax-Free Spin Protection Plan, dated as of November 5, 2023 (as may be amended from time to time, the “Plan”), between the Company and Equiniti Trust Company, LLC, as rights agent. Each Right entitles the registered holder to purchase from the Company one ten-thousandth of a share of Series A Junior Participating Preferred Stock, no par value per share, of the Company (the “Series A Preferred”), at a purchase price of $300.00 per one ten-thousandth of a share of Series A Preferred, subject to adjustment. By adopting the Plan, the Board is seeking to preserve the Company’s ability to effectuate a separation of Centuri Holdings (the “Spin-Off Transaction”) that would be tax-free to the Company (the “Tax-Free Status”). While the Company intends that any Spin-Off Transaction, if effected, would qualify as a tax-free transaction to the Company’s stockholders, the ability to effect a spin-off that is tax-free to the Company (as opposed to its stockholders) could be lost if certain stock purchases (including by existing or new holders in the open market) are treated as part of a plan pursuant to which one or more persons directly or indirectly acquire a 50% or greater interest in the Company (a “355 Ownership Change”) within applicable time periods for purposes of Section 355(e) of the Internal Revenue Code. The Company believes that there is minimal capacity for changes in the ownership of its stock before a 355 Ownership Change could occur. The Plan is intended to restrict acquisitions of Company stock that could cause a 355 Ownership Change and could impair the Company’s ability to effectuate a Spin-Off Transaction that has Tax-Free Status. The Board believes it is in the best interest of the Company and its stockholders to preserve the Company’s ability to effectuate a Spin-Off Transaction with Tax-Free Status. |
Pay vs Performance Disclosure
Pay vs Performance Disclosure - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Pay vs Performance Disclosure | ||||||
Net income (loss) | $ 3,231 | $ (12,309) | $ 78,020 | $ 77,294 | $ (202,564) | $ 147,237 |
Insider Trading Arrangements
Insider Trading Arrangements | 3 Months Ended |
Sep. 30, 2023 | |
Trading Arrangements, by Individual | |
Rule 10b5-1 Arrangement Adopted | false |
Non-Rule 10b5-1 Arrangement Adopted | false |
Rule 10b5-1 Arrangement Terminated | false |
Non-Rule 10b5-1 Arrangement Terminated | false |
Background, Organization, and_2
Background, Organization, and Summary of Significant Accounting Policies (Policies) | 9 Months Ended |
Sep. 30, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Nature of Operations | Nature of Operations. Southwest Gas Holdings, Inc. (together with its subsidiaries, the “Company”) is a holding company, owning all of the shares of common stock of Southwest Gas Corporation (“Southwest” or the “natural gas distribution” segment), all of the shares of common stock of Centuri Group, Inc. (“Centuri,” or the “utility infrastructure services” segment), and until February 14, 2023, all of the shares of common stock of MountainWest Pipelines Holding Company (“MountainWest” or the “pipeline and storage” segment). |
Basis of Presentation | Basis of Presentation. The condensed consolidated financial statements of Southwest Gas Holdings, Inc. and subsidiaries and Southwest (with its subsidiaries) included herein have been prepared pursuant to the rules and regulations of the SEC. The year-end 2022 condensed balance sheet data was derived from audited financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations. No substantive change has occurred with regard to the Company’s business segments on the whole during the recently completed quarter. The preparation of the condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. In the opinion of management, all adjustments, consisting of normal recurring items and estimates necessary for a fair statement of results for the interim periods, have been made. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the 2022 Annual Report to Stockholders, which is incorporated by reference into Southwest’s and the Company’s 2022 Annual Report on Form 10-K. |
Deferred purchased gas costs | Deferred purchased gas costs. In July 2023, the Arizona Corporation Commission approved an increase in the gas cost balancing account (“GCBA”) rate, over a two-year period, as an enhancement to the existing gas cost recovery mechanism, given the $358 million Arizona account balance existing as of May 31, 2023. The increased GCBA rate of $0.20 per therm will support timely recovery of the existing balance. Based on the design of base tariff gas cost rates in Arizona and surcharges, the account balance existing as of that date is deemed generally recoverable over the next twelve months, and is therefore classified as a current asset on the balance sheets of the Company and Southwest. |
Prepaid and other current assets | Prepaid and other current assets. Prepaid and other current assets for the Company and Southwest include, among other things, materials and operating supplies of $86.6 million at September 30, 2023 and $77.3 million at December 31, 2022 (carried at weighted average cost). Also included in the balance was $207 million as of December 31, 2022 in unrecovered purchased gas costs, with no |
Goodwill | Goodwill. Since December 31, 2022, management qualitatively assessed whether events during the first nine months of 2023 indicated it was more likely than not that the fair value of our reporting units was less than their carrying value, which if the case, could be an indication of a goodwill impairment. Through management’s assessments, no impairment was deemed to have occurred in the continuing segments of the Company. |
Other Current Liabilities | Other Current Liabilities . Management recognizes in its balance sheets various liabilities that are expected to be settled through future cash payment within the next twelve months, including amounts payable under regulatory mechanisms, customary accrued expenses for employee compensation and benefits, declared but unpaid dividends, and miscellaneous other |
Earnings Per Share | Earnings Per Share. Basic earnings per share (“EPS”) in each period of this report were calculated by dividing net income attributable to Southwest Gas Holdings, Inc. by the weighted-average number of shares during those periods. Diluted EPS includes additional weighted-average common stock equivalents (performance shares and restricted stock units). Unless otherwise noted, the term “Earnings Per Share” refers to Basic EPS. |
Recent Accounting Standards Updates | Recent Accounting Standards Updates.There are no recently issued accounting standards updates that are expected to be adopted or material to Southwest or the Company effective in 2023 or thereafter. |
Background, Organization, and_3
Background, Organization, and Summary of Significant Accounting Policies (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Schedule of Other Property and Investments | Other property and investments on Southwest’s and the Company’s Condensed Consolidated Balance Sheets includes: (Thousands of dollars) September 30, 2023 December 31, 2022 Net cash surrender value of COLI policies $ 141,321 $ 136,245 Other property 6,140 33,152 Total Southwest Gas Corporation 147,461 169,397 Non-regulated property, equipment, and intangibles 1,748,625 1,677,218 Non-regulated accumulated provision for depreciation and amortization (677,442) (596,518) Other property and investments 35,421 31,075 Total Southwest Gas Holdings, Inc. $ 1,254,065 $ 1,281,172 |
Schedule of Goodwill | Goodwill in the Natural Gas Distribution and Utility Infrastructure Services segments is included in the respective Condensed Consolidated Balance Sheets as follows: (Thousands of dollars) Natural Gas Utility Infrastructure Total Company December 31, 2022 $ 11,155 $ 776,095 $ 787,250 Foreign currency translation adjustment — 183 183 September 30, 2023 $ 11,155 $ 776,278 $ 787,433 |
Schedule of Significant Items Included in Other Income (Deductions) | The following table provides the composition of significant items included in Other income (deductions) in Southwest’s and the Company’s Condensed Consolidated Statements of Income: Three Months Ended September 30, Nine Months Ended Twelve Months Ended (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Southwest Gas Corporation: Change in COLI policies $ (1,500) $ (1,500) $ 4,800 $ (8,700) $ 8,100 $ (5,700) Interest income 13,249 4,356 40,235 10,355 46,063 12,156 Equity AFUDC — 91 — 248 (248) 248 Other components of net periodic benefit cost 5,097 (188) 15,290 (563) 15,102 (4,068) Miscellaneous expense (2,309) (1,081) (8,603) (1,780) (23,739) (2,733) Southwest Gas Corporation - total other income (deductions) 14,537 1,678 51,722 (440) 45,278 (97) Centuri and Southwest Gas Holdings, Inc.: Foreign transaction gain (loss) 18 (182) (399) 35 543 32 Equity AFUDC — 246 82 664 (117) 664 Equity in earnings of unconsolidated investments 142 624 591 1,867 1,353 1,925 Miscellaneous income and (expense) (50) (523) 466 (1,746) (901) (1,661) Corporate and administrative (183) (250) 66 (378) 181 (385) Southwest Gas Holdings, Inc. - total other income (deductions) $ 14,464 $ 1,593 $ 52,528 $ 2 $ 46,337 $ 478 |
Schedule of Redeemable Noncontrolling Interest | The following depicts changes to the balances of the redeemable noncontrolling interests: (Thousands of dollars): Linetec Drum Total Balance, December 31, 2022 $ 146,765 $ 12,584 $ 159,349 Net income attributable to redeemable noncontrolling interests 3,714 142 3,856 Redemption value adjustments 21,846 — 21,846 Redemption of equity interest from noncontrolling party (39,894) — (39,894) Balance, September 30, 2023 $ 132,431 $ 12,726 $ 145,157 |
Schedule of Earnings Per Share, Basic and Diluted | A reconciliation of the denominator used in Basic and Diluted EPS calculations is shown in the following table: Three Months Ended Nine Months Ended Twelve Months Ended (In thousands) 2023 2022 2023 2022 2023 2022 Weighted average basic shares 71,626 67,157 70,488 65,004 69,660 63,905 Effect of dilutive securities: Restricted stock units (1)(2) 225 — 188 144 — 146 Weighted average diluted shares 71,851 67,157 70,676 65,148 69,660 64,051 (1) The number of anti-dilutive restricted stock units excluded from the calculation of diluted shares during the three months ended September 30, 2022 is 168,000, and 192,000 during the twelve months ended September 30, 2023. |
Components of Net Periodic Be_2
Components of Net Periodic Benefit Cost (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Retirement Benefits [Abstract] | |
Schedule of Net Periodic Benefit Costs | The service cost component of net periodic benefit costs included in the table below is a component of an overhead loading process associated with the cost of labor. The overhead process ultimately results in allocation of service cost to the same accounts to which productive labor is charged. As a result, service costs become components of various accounts, primarily operations and maintenance expense, net regulated operations plant, and deferred charges and other assets for both the Company and Southwest. The other components of net periodic benefit cost are reflected in Other income (deductions) on the Condensed Consolidated Statements of Income of each entity. Variability in total net periodic benefit cost between periods, especially with regard to the Qualified Retirement Plan, is subject to changes in underlying actuarial assumptions between periods, notably the discount rate. Qualified Retirement Plan September 30, Three Months Nine Months Twelve Months 2023 2022 2023 2022 2023 2022 (Thousands of dollars) Service cost $ 6,460 $ 11,028 $ 19,380 $ 33,084 $ 30,406 $ 43,374 Interest cost 14,791 11,251 44,373 33,753 55,626 43,861 Expected return on plan assets (21,015) (19,978) (63,045) (59,934) (83,024) (78,022) Amortization of net actuarial loss 84 8,117 252 24,351 8,369 34,839 Net periodic benefit cost $ 320 $ 10,418 $ 960 $ 31,254 $ 11,377 $ 44,052 SERP September 30, Three Months Nine Months Twelve Months 2023 2022 2023 2022 2023 2022 (Thousands of dollars) Service cost $ 62 $ 106 $ 186 $ 318 $ 292 $ 450 Interest cost 531 360 1,593 1,080 1,954 1,437 Amortization of net actuarial loss 249 588 748 1,763 1,335 2,424 Net periodic benefit cost $ 842 $ 1,054 $ 2,527 $ 3,161 $ 3,581 $ 4,311 PBOP September 30, Three Months Nine Months Twelve Months 2023 2022 2023 2022 2023 2022 (Thousands of dollars) Service cost $ 317 $ 485 $ 951 $ 1,455 $ 1,437 $ 1,877 Interest cost 825 613 2,475 1,839 3,088 2,387 Expected return on plan assets (606) (807) (1,818) (2,421) (2,625) (3,230) Amortization of prior service costs 44 44 132 132 175 372 Net periodic benefit cost $ 580 $ 335 $ 1,740 $ 1,005 $ 2,075 $ 1,406 |
Revenue (Tables)
Revenue (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Revenue from Contract with Customer [Abstract] | |
Schedule of Revenue Disaggregated by Service Type and Contract Type | Southwest’s operating revenues included on the Condensed Consolidated Statements of Income of both the Company and Southwest include revenue from contracts with customers, which is shown below, disaggregated by customer type, in addition to other categories of revenue: Three Months Ended Nine Months Ended Twelve Months Ended September 30, (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Residential $ 215,376 $ 170,196 $ 1,277,363 $ 913,355 $ 1,688,802 $ 1,205,176 Small commercial 85,955 61,780 366,667 264,494 480,693 348,934 Large commercial 27,888 19,590 84,021 60,740 108,515 78,081 Industrial/other 16,596 13,319 52,165 34,064 68,995 46,025 Transportation 23,278 22,936 77,558 74,034 104,166 98,057 Revenue from contracts with customers 369,093 287,821 1,857,774 1,346,687 2,451,171 1,776,273 Alternative revenue program revenues (deferrals) 21,840 13,609 (72,251) 1,132 (91,861) 19,648 Other revenues (1) 3,670 2,514 11,825 10,606 14,682 13,718 Total Regulated operations revenues $ 394,603 $ 303,944 $ 1,797,348 $ 1,358,425 $ 2,373,992 $ 1,809,639 (1) Amounts include late fees and other miscellaneous revenues, and may also include the impact of certain regulatory mechanisms. The following tables display Centuri’s revenue, reflected as Utility infrastructure services revenues on the Condensed Consolidated Statements of Income of the Company, representing revenue from contracts with customers disaggregated by service and contract types: Three Months Ended Nine Months Ended Twelve Months Ended September 30, (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Service Types: Gas infrastructure services $ 443,083 $ 467,751 $ 1,173,960 $ 1,147,302 $ 1,558,476 $ 1,487,806 Electric power infrastructure services 200,547 189,209 668,681 550,926 895,879 729,067 Other 131,259 101,506 391,320 290,205 551,500 404,773 Total Utility infrastructure services revenues $ 774,889 $ 758,466 $ 2,233,961 $ 1,988,433 $ 3,005,855 $ 2,621,646 Three Months Ended Nine Months Ended Twelve Months Ended September 30, (Thousands of dollars) 2023 2022 2023 2022 2023 2022 Contract Types: Master services agreement $ 631,913 $ 637,582 $ 1,830,242 $ 1,700,416 $ 2,472,046 $ 2,193,195 Bid contract 142,976 120,884 403,719 288,017 533,809 428,451 Total Utility infrastructure services revenues $ 774,889 $ 758,466 $ 2,233,961 $ 1,988,433 $ 3,005,855 $ 2,621,646 Unit price contracts $ 440,787 $ 453,718 $ 1,191,889 $ 1,178,168 $ 1,621,852 $ 1,544,471 Fixed price contracts 165,637 117,983 521,722 333,313 686,448 451,374 Time and materials contracts 168,465 186,765 520,350 476,952 697,555 625,801 Total Utility infrastructure services revenues $ 774,889 $ 758,466 $ 2,233,961 $ 1,988,433 $ 3,005,855 $ 2,621,646 |
Schedule of Information about Receivables, Revenue Earned on Contracts in Progress in Excess of Billings, Which are Included Within Accounts Receivable, Net of Allowances, and Amounts Billed in Excess of Revenue Earned on Contracts | The following table provides information about contracts receivable and revenue earned on contracts in progress in excess of billings (contract assets), both of which are included within Accounts receivable, net of allowances, as well as amounts billed in excess of revenue earned on contracts (contract liabilities) at Centuri, which are included in Other current liabilities as of September 30, 2023 and December 31, 2022 on the Company’s Condensed Consolidated Balance Sheets: (Thousands of dollars) September 30, 2023 December 31, 2022 Contracts receivable, net $ 452,728 $ 394,022 Revenue earned on contracts in progress in excess of billings 282,759 238,059 Amounts billed in excess of revenue earned on contracts 51,710 35,769 |
Schedule of Utility Infrastructure Services Contracts Receivable | Utility infrastructure services contracts receivable consists of the following: (Thousands of dollars) September 30, 2023 December 31, 2022 Billed on completed contracts and contracts in progress $ 453,434 $ 395,771 Other receivables 3,906 2,569 Contracts receivable, gross 457,340 398,340 Allowance for doubtful accounts (4,612) (4,318) Contracts receivable, net $ 452,728 $ 394,022 |
Common Stock (Tables)
Common Stock (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Equity [Abstract] | |
Schedule of Common Stock Activity | The following table provides the life-to-date activity under that program through September 30, 2023: Gross proceeds $ 158,180,343 Less: agent commissions (1,581,803) Net proceeds $ 156,598,540 Number of shares sold 2,302,407 Weighted average price per share $ 68.70 |
Debt (Tables)
Debt (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Debt Disclosure [Abstract] | |
Schedule of Carrying Amounts and Estimated Fair Values of Long-Term Debt | Details surrounding the fair value and individual carrying values of instruments are provided in the table that follows. September 30, 2023 December 31, 2022 Carrying Fair Carrying Fair (Thousands of dollars) Southwest Gas Corporation: Debentures: 8% Series, due 2026 $ 75,000 $ 77,489 $ 75,000 $ 80,027 Medium-term notes, 7.92% series, due 2027 25,000 26,063 25,000 26,840 Medium-term notes, 6.76% series, due 2027 7,500 7,533 7,500 7,662 Notes, 5.8%, due 2027 300,000 300,300 300,000 305,913 Notes, 3.7%, due 2028 300,000 274,884 300,000 275,043 Notes, 5.45%, due 2028 300,000 295,212 — — Notes, 2.2%, due 2030 450,000 353,831 450,000 353,763 Notes, 4.05%, due 2032 600,000 518,934 600,000 527,052 Notes, 6.1%, due 2041 125,000 113,156 125,000 113,184 Notes, 4.875%, due 2043 250,000 193,110 250,000 195,703 Notes, 3.8%, due 2046 300,000 203,553 300,000 209,169 Notes, 4.15%, due 2049 300,000 210,048 300,000 218,712 Notes, 3.18%, due 2051 300,000 172,647 300,000 185,523 Unamortized discount and debt issuance costs (30,357) (29,471) 3,302,143 3,003,029 Revolving credit facility and commercial paper — — 50,000 50,000 Industrial development revenue bonds: Tax-exempt Series A, due 2028 50,000 50,000 50,000 50,000 2003 Series A, due 2038 50,000 50,000 50,000 50,000 2008 Series A, due 2038 50,000 50,000 50,000 50,000 2009 Series A, due 2039 50,000 50,000 50,000 50,000 Unamortized discount and debt issuance costs (1,459) (1,733) 198,541 198,267 Less: current maturities — — Southwest Gas Corporation total long-term debt, less current maturities 3,500,684 3,251,296 Southwest Gas Holdings, Inc.: SWH term loan facility 550,000 550,000 — — Centuri secured term loan facility 997,100 994,607 1,008,550 995,852 Centuri secured revolving credit facility 143,881 143,918 81,955 82,315 Other debt obligations 104,240 97,261 126,844 118,314 Unamortized discount and debt issuance costs (18,031) (20,789) Less: current maturities (42,335) (44,557) Southwest Gas Holdings, Inc. total long-term debt, less current maturities $ 5,235,539 $ 4,403,299 |
Other Comprehensive Income an_2
Other Comprehensive Income and Accumulated Other Comprehensive Income (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Equity [Abstract] | |
Schedule of Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss) | Related Tax Effects Allocated to Each Component of Other Comprehensive Income (Loss) Three Months Ended Three Months Ended (Thousands of dollars) Before- Tax Net-of- Before- Tax Net-of- Defined benefit pension plans: Amortization of prior service cost $ 44 $ (11) $ 33 $ 44 $ (10) $ 34 Amortization of net actuarial (gain)/loss 333 (80) 253 8,705 (2,089) 6,616 Regulatory adjustment (118) 28 (90) (7,268) 1,744 (5,524) Total other comprehensive income (loss) - Southwest Gas Corporation 259 (63) 196 1,481 (355) 1,126 Foreign currency translation adjustments: Translation adjustments (2,261) — (2,261) (5,830) — (5,830) Foreign currency other comprehensive income (loss) (2,261) — (2,261) (5,830) — (5,830) Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ (2,002) $ (63) $ (2,065) $ (4,349) $ (355) $ (4,704) Nine Months Ended Nine Months Ended (Thousands of dollars) Before- Tax Net-of- Before- Tax Net-of- Defined benefit pension plans: Amortization of prior service cost $ 132 $ (33) $ 99 $ 132 $ (32) $ 100 Amortization of net actuarial (gain)/loss 1,000 (240) 760 26,114 (6,267) 19,847 Regulatory adjustment (356) 86 (270) (21,804) 5,233 (16,571) Pension plans other comprehensive income (loss) 776 (187) 589 4,442 (1,066) 3,376 FSIRS (designated hedging activities): Amounts reclassified into net income — — — 545 (129) 416 FSIRS other comprehensive income (loss) — — — 545 (129) 416 Total other comprehensive income (loss) - Southwest Gas Corporation 776 (187) 589 4,987 (1,195) 3,792 Foreign currency translation adjustments: Translation adjustments 130 — 130 (7,263) — (7,263) Foreign currency other comprehensive income (loss) 130 — 130 (7,263) — (7,263) Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ 906 $ (187) $ 719 $ (2,276) $ (1,195) $ (3,471) Twelve Months Ended Twelve Months Ended (Thousands of dollars) Before- Tax Net-of- Before- Tax Net-of- Defined benefit pension plans: Net actuarial gain/(loss) $ 4,079 $ (980) $ 3,099 $ 59,176 $ (14,202) $ 44,974 Amortization of prior service cost 175 (43) 132 372 (90) 282 Amortization of net actuarial (gain)/loss 9,704 (2,330) 7,374 37,263 (8,942) 28,321 Regulatory adjustment (6,784) 1,628 (5,156) (81,273) 19,506 (61,767) Pension plans other comprehensive income (loss) 7,174 (1,725) 5,449 15,538 (3,728) 11,810 FSIRS (designated hedging activities): Amounts reclassified into net income — — — 1,087 (259) 828 FSIRS other comprehensive income (loss) — — — 1,087 (259) 828 Total other comprehensive income (loss) - Southwest Gas Corporation 7,174 (1,725) 5,449 16,625 (3,987) 12,638 Foreign currency translation adjustments: Translation adjustments 1,260 — 1,260 (6,919) — (6,919) Foreign currency other comprehensive income (loss) 1,260 — 1,260 (6,919) — (6,919) Total other comprehensive income (loss) - Southwest Gas Holdings, Inc. $ 8,434 $ (1,725) $ 6,709 $ 9,706 $ (3,987) $ 5,719 (1) Tax amounts are calculated using a 24% rate. The Company has elected to indefinitely reinvest, in Canada, the earnings of Centuri’s Canadian subsidiaries, thus precluding deferred taxes on such earnings. As a result of this assertion, and no repatriation of earnings anticipated, the Company is not recognizing a tax effect or presenting a tax expense or benefit for currency translation adjustments reported in Other comprehensive income (loss). |
Schedule of Rollforward of Accumulated Other Comprehensive Income | The following table represents a rollforward of AOCI, presented on the Company’s Condensed Consolidated Balance Sheets and its Condensed Consolidated Statements of Equity: Defined Benefit Plans Foreign Currency Items (Thousands of dollars) Before-Tax Tax After-Tax Before-Tax Tax After-Tax AOCI Beginning Balance AOCI December 31, 2022 $ (50,342) $ 12,081 $ (38,261) $ (5,981) $ — $ (5,981) $ (44,242) Translation adjustments — — — 130 — 130 130 Amortization of prior service cost (1) 132 (33) 99 — — — 99 Amortization of net actuarial loss (1) 1,000 (240) 760 — — — 760 Regulatory adjustment (2) (356) 86 (270) — — — (270) Net current period other comprehensive income (loss) attributable to Southwest Gas Holdings, Inc. 776 (187) 589 130 — 130 719 Ending Balance AOCI September 30, 2023 $ (49,566) $ 11,894 $ (37,672) $ (5,851) $ — $ (5,851) $ (43,523) (1) These AOCI components are included in the computation of net periodic benefit cost (see Note 2 – Components of Net Periodic Benefit Cost for additional details). (2) The regulatory adjustment represents the portion of the activity above that is expected to be recovered through rates in the future (the related regulatory asset is included in Deferred charges and other assets on the Company’s Condensed Consolidated Balance Sheets). (3) Tax amounts are calculated using a 24% rate. The following table represents a rollforward of AOCI, presented on Southwest’s Condensed Consolidated Balance Sheets: Defined Benefit Plans (Thousands of dollars) Before-Tax Tax After-Tax Beginning Balance AOCI December 31, 2022 $ (50,342) $ 12,081 $ (38,261) Amortization of prior service cost (4) 132 (33) 99 Amortization of net actuarial loss (4) 1,000 (240) 760 Regulatory adjustment (5) (356) 86 (270) Net current period other comprehensive income attributable to Southwest Gas Corporation 776 (187) 589 Ending Balance AOCI September 30, 2023 $ (49,566) $ 11,894 $ (37,672) (4) These AOCI components are included in the computation of net periodic benefit cost (see Note 2 – Components of Net Periodic Benefit Cost for additional details). (5) The regulatory adjustment represents the portion of the activity above that is expected to be recovered through rates in the future (the related regulatory asset is included in Deferred charges and other assets on Southwest’s Condensed Consolidated Balance Sheets). (6) Tax amounts are calculated using a 24% rate. |
Schedule of Amount Recognized Before Income Tax in Accumulated Other Comprehensive Income | The following table represents amounts (before income tax impacts) included in AOCI (in the tables above), that have not yet been recognized in net periodic benefit cost: (Thousands of dollars) September 30, 2023 December 31, 2022 Net actuarial loss $ (359,113) $ (360,113) Prior service cost (1,221) (1,353) Less: amount recognized in regulatory assets 310,768 311,124 Recognized in AOCI $ (49,566) $ (50,342) |
Segment Information (Tables)
Segment Information (Tables) | 9 Months Ended |
Sep. 30, 2023 | |
Segment Reporting [Abstract] | |
Schedule of Accounts Receivable Not Eliminated During Consolidation | Accounts receivable for these services, which are not eliminated during consolidation, are presented in the table below: (Thousands of dollars) September 30, 2023 December 31, 2022 Centuri accounts receivable for services provided to Southwest $ 11,764 $ 18,067 |
Schedule of Segment Reporting Information | The financial information pertaining to the natural gas distribution, utility infrastructure services, and pipeline and storage segments are as follows: (Thousands of dollars) Natural Gas Utility Infrastructure Pipeline and Storage Other Total Three Months Ended September 30, 2023 Revenues from external customers $ 394,603 $ 745,639 $ — $ — $ 1,140,242 Intersegment revenues — 29,250 — — 29,250 Total $ 394,603 $ 774,889 $ — $ — $ 1,169,492 Segment net income (loss) $ (3,251) $ 17,956 $ — $ (11,474) $ 3,231 Three Months Ended September 30, 2022 Revenues from external customers $ 303,944 $ 721,910 $ 63,178 $ — $ 1,089,032 Intersegment revenues — 36,556 — — 36,556 Total $ 303,944 $ 758,466 $ 63,178 $ — $ 1,125,588 Segment net income (loss) $ (22,199) $ 14,345 $ 12,320 $ (16,775) $ (12,309) (Thousands of dollars) Natural Gas Utility Infrastructure Pipeline and Storage Other Total Nine Months Ended September 30, 2023 Revenues from external customers $ 1,797,348 $ 2,145,601 $ 35,132 $ — $ 3,978,081 Intersegment revenues — 88,360 — — 88,360 Total $ 1,797,348 $ 2,233,961 $ 35,132 $ — $ 4,066,441 Segment net income (loss) $ 150,565 $ 24,902 $ (16,288) $ (81,159) $ 78,020 Nine Months Ended September 30, 2022 Revenues from external customers $ 1,358,425 $ 1,889,573 $ 192,259 $ — $ 3,440,257 Intersegment revenues — 98,860 — — 98,860 Total $ 1,358,425 $ 1,988,433 $ 192,259 $ — $ 3,539,117 Segment net income (loss) $ 87,330 $ (4,400) $ 44,326 $ (49,962) $ 77,294 (Thousands of dollars) Natural Gas Utility Infrastructure Pipeline and Storage Other Total Twelve Months Ended September 30, 2023 Revenues from external customers $ 2,373,992 $ 2,881,697 $ 107,486 $ — $ 5,363,175 Intersegment revenues — 124,158 — — 124,158 Total $ 2,373,992 $ 3,005,855 $ 107,486 $ — $ 5,487,333 Segment net income (loss) $ 217,615 $ 31,367 $ (344,347) $ (107,199) $ (202,564) Twelve Months Ended September 30, 2022 Revenues from external customers $ 1,809,639 $ 2,495,169 $ 192,259 $ — $ 4,497,067 Intersegment revenues — 126,477 — — 126,477 Total $ 1,809,639 $ 2,621,646 $ 192,259 $ — $ 4,623,544 Segment net income (loss) $ 171,881 $ 3,223 $ 44,326 $ (72,193) $ 147,237 |
Background, Organization, and_4
Background, Organization, and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||||||
Sep. 30, 2023 | Jul. 31, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021 | May 31, 2023 | Mar. 31, 2022 | Nov. 30, 2018 | |
Significant Accounting Policies [Line Items] | ||||||||||||||||
Decrease of net cost of gas sold | $ (170,056,000) | $ (100,991,000) | $ (908,646,000) | $ (547,769,000) | $ (1,159,937,000) | $ (682,449,000) | ||||||||||
Increase in deferred purchased gas costs | 252,022,000 | 92,200,000 | 307,037,000 | 142,518,000 | ||||||||||||
Other property and investments adjustment | $ (1,254,065,000) | (1,254,065,000) | (1,254,065,000) | (1,254,065,000) | $ (1,281,172,000) | |||||||||||
Current assets held for sale adjustment | 24,480,000 | 24,480,000 | 24,480,000 | 24,480,000 | 1,737,530,000 | |||||||||||
Decrease of capital expenditures incurred but not yet paid | 39,600,000 | 10,500,000 | ||||||||||||||
Deferred purchased gas costs | 687,137,000 | 687,137,000 | $ 381,000,000 | 687,137,000 | $ 381,000,000 | 687,137,000 | 450,120,000 | 381,000,000 | ||||||||
Accrued purchased gas cost | 0 | 0 | 0 | 0 | 207,000,000 | |||||||||||
Goodwill impairment loss | 0 | |||||||||||||||
Dividends declared but not yet paid | 44,300,000 | 44,300,000 | 44,300,000 | 44,300,000 | 41,600,000 | |||||||||||
Accrued purchased gas cost | 41,500,000 | $ 41,500,000 | 41,500,000 | 41,500,000 | 0 | |||||||||||
Percentage of redeemable noncontrolling interest redeemed | 5% | |||||||||||||||
Redemption value adjustments | $ 21,846,000 | |||||||||||||||
Effective income tax rate | (47.10%) | 11.90% | 28.20% | 18.60% | ||||||||||||
Certain Assets Associated With Previous Corporate Headquarters | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Other property and investments adjustment | $ 27,000,000 | $ 27,000,000 | ||||||||||||||
Current assets held for sale adjustment | $ 27,000,000 | 27,000,000 | ||||||||||||||
Estimated loss on disposition of assets | 2,100,000 | |||||||||||||||
Arizona Decoupling Mechanism | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Regulatory liability | 36,600,000 | $ 36,600,000 | $ 36,600,000 | 36,600,000 | 7,500,000 | |||||||||||
Arizona | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Gas cost balancing account rate, period | 2 years | |||||||||||||||
Deferred purchased gas costs | $ 358,000,000 | |||||||||||||||
Gas cost balancing account recovery period | 12 months | |||||||||||||||
Linetec | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Redemption value adjustments | $ 21,846,000 | |||||||||||||||
Drum | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Redemption value adjustments | 0 | |||||||||||||||
Southwest Gas Corporation | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Decrease of net cost of gas sold | (170,056,000) | $ (100,441,000) | (902,278,000) | $ (544,216,000) | (1,147,278,000) | (678,896,000) | ||||||||||
Increase in deferred purchased gas costs | 237,017,000 | $ 90,206,000 | 305,786,000 | $ 140,524,000 | ||||||||||||
Other property and investments adjustment | (147,461,000) | (147,461,000) | (147,461,000) | (147,461,000) | (169,397,000) | |||||||||||
Current assets held for sale adjustment | 24,480,000 | 24,480,000 | 24,480,000 | 24,480,000 | 0 | |||||||||||
Decrease of capital expenditures incurred but not yet paid | 35,200,000 | 2,900,000 | ||||||||||||||
Deferred purchased gas costs | 687,137,000 | 687,137,000 | 687,137,000 | 687,137,000 | 450,120,000 | |||||||||||
Gas pipe materials and operating supplies | $ 86,600,000 | $ 86,600,000 | $ 86,600,000 | $ 86,600,000 | 77,300,000 | |||||||||||
Effective income tax rate | 65.30% | 28.10% | 12.90% | 17% | ||||||||||||
Previous Owner Of Linetec | Linetec | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Ownership percentage by noncontrolling owners | 10% | 10% | 10% | 10% | 15% | 20% | ||||||||||
Centuri | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Payment for repurchase of redeemable noncontrolling interest | $ 39,900,000 | |||||||||||||||
Centuri | Linetec | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Ownership percentage by parent | 90% | 90% | 90% | 90% | ||||||||||||
Certain Members Of Riggs Distler Management | Drum | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Ownership percentage by noncontrolling owners | 1.42% | 1.42% | 1.42% | 1.42% | ||||||||||||
Money Market Funds | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Money market fund investments | $ 67,700,000 | $ 67,700,000 | $ 67,700,000 | $ 67,700,000 | 30,000,000 | |||||||||||
Money Market Funds | Southwest Gas Corporation | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Money market fund investments | $ 66,000,000 | $ 66,000,000 | $ 66,000,000 | $ 66,000,000 | 17,600,000 | |||||||||||
Revision of Prior Period, Error Correction, Adjustment | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Decrease of net cost of gas sold | $ 5,700,000 | $ 2,300,000 | ||||||||||||||
Increase in deferred purchased gas costs | 8,000,000 | |||||||||||||||
Loss on disposal adjustment | 21,000,000 | |||||||||||||||
Impairment of asset held for sale adjustment | $ 21,000,000 | |||||||||||||||
Discontinued Operations, Disposed of by Sale | MountainWest | ||||||||||||||||
Significant Accounting Policies [Line Items] | ||||||||||||||||
Ownership percentage disposed | 100% | |||||||||||||||
Discontinued operation, consideration | $ 1,500,000,000 |
Background, Organization, and_5
Background, Organization, and Summary of Significant Accounting Policies - Schedule of Other Property and Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Property, Plant and Equipment [Line Items] | ||
Non-regulated property, equipment, and intangibles | $ 1,748,625 | $ 1,677,218 |
Non-regulated accumulated provision for depreciation and amortization | (677,442) | (596,518) |
Other property and investments | 35,421 | 31,075 |
Total | 1,254,065 | 1,281,172 |
Southwest Gas Corporation | ||
Property, Plant and Equipment [Line Items] | ||
Net cash surrender value of COLI policies | 141,321 | 136,245 |
Other property and investments | 6,140 | 33,152 |
Total | $ 147,461 | $ 169,397 |
Background, Organization, and_6
Background, Organization, and Summary of Significant Accounting Policies - Schedule of Goodwill (Details) $ in Thousands | 9 Months Ended |
Sep. 30, 2023 USD ($) | |
Goodwill [Roll Forward] | |
Goodwill, beginning balance | $ 787,250 |
Foreign currency translation adjustment | 183 |
Goodwill, ending balance | 787,433 |
Natural Gas Distribution | |
Goodwill [Roll Forward] | |
Goodwill, beginning balance | 11,155 |
Foreign currency translation adjustment | 0 |
Goodwill, ending balance | 11,155 |
Utility Infrastructure Services | |
Goodwill [Roll Forward] | |
Goodwill, beginning balance | 776,095 |
Foreign currency translation adjustment | 183 |
Goodwill, ending balance | $ 776,278 |
Background, Organization, and_7
Background, Organization, and Summary of Significant Accounting Policies - Other Income (Deductions) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Other income (deductions) | ||||||
Total other income (deductions) | $ 14,464 | $ 1,593 | $ 52,528 | $ 2 | $ 46,337 | $ 478 |
Corporate and administrative | ||||||
Other income (deductions) | ||||||
Total other income (deductions) | (183) | (250) | 66 | (378) | 181 | (385) |
Southwest Gas Corporation | ||||||
Other income (deductions) | ||||||
Change in COLI policies | (1,500) | (1,500) | 4,800 | (8,700) | 8,100 | (5,700) |
Interest income | 13,249 | 4,356 | 40,235 | 10,355 | 46,063 | 12,156 |
Equity AFUDC | 0 | 91 | 0 | 248 | (248) | 248 |
Other components of net periodic benefit cost | 5,097 | (188) | 15,290 | (563) | 15,102 | (4,068) |
Miscellaneous (expense) and income | (2,309) | (1,081) | (8,603) | (1,780) | (23,739) | (2,733) |
Total other income (deductions) | 14,537 | 1,678 | 51,722 | (440) | 45,278 | (97) |
Centuri And Southwest Gas Holdings, Inc. | ||||||
Other income (deductions) | ||||||
Equity AFUDC | 0 | 246 | 82 | 664 | (117) | 664 |
Foreign transaction gain (loss) | 18 | (182) | (399) | 35 | 543 | 32 |
Equity in earnings of unconsolidated investments | 142 | 624 | 591 | 1,867 | 1,353 | 1,925 |
Miscellaneous (expense) and income | $ (50) | $ (523) | $ 466 | $ (1,746) | $ (901) | $ (1,661) |
Background, Organization, and_8
Background, Organization, and Summary of Significant Accounting Policies - Schedule of Redeemable Noncontrolling Interest (Details) $ in Thousands | 9 Months Ended |
Sep. 30, 2023 USD ($) | |
Movement In Redeemable Noncontrolling Interest [Roll Forward] | |
Redeemable noncontrolling interest, beginning balance | $ 159,349 |
Net income attributable to redeemable noncontrolling interests | 3,856 |
Redemption value adjustments | 21,846 |
Redemption of equity interest from noncontrolling party | (39,894) |
Redeemable noncontrolling interest, ending balance | 145,157 |
Linetec | |
Movement In Redeemable Noncontrolling Interest [Roll Forward] | |
Redeemable noncontrolling interest, beginning balance | 146,765 |
Net income attributable to redeemable noncontrolling interests | 3,714 |
Redemption value adjustments | 21,846 |
Redemption of equity interest from noncontrolling party | (39,894) |
Redeemable noncontrolling interest, ending balance | 132,431 |
Drum | |
Movement In Redeemable Noncontrolling Interest [Roll Forward] | |
Redeemable noncontrolling interest, beginning balance | 12,584 |
Net income attributable to redeemable noncontrolling interests | 142 |
Redemption value adjustments | 0 |
Redemption of equity interest from noncontrolling party | 0 |
Redeemable noncontrolling interest, ending balance | $ 12,726 |
Background, Organization, and_9
Background, Organization, and Summary of Significant Accounting Policies - Schedule of Earnings Per Share (Details) - shares shares in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||||
Weighted average basic shares (in shares) | 71,626 | 67,157 | 70,488 | 65,004 | 69,660 | 63,905 |
Effect of dilutive securities: | ||||||
Restricted stock units (in shares) | 225 | 0 | 188 | 144 | 0 | 146 |
Weighted average diluted shares (in shares) | 71,851 | 67,157 | 70,676 | 65,148 | 69,660 | 64,051 |
Number of performance share units granted (in shares) | 189 | 160 | 135 | 135 | ||
Restricted Stock Units (RSUs) | ||||||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||||||
Antidilutive securities (in shares) | 168 | 192 |
Components of Net Periodic Be_3
Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Qualified Retirement Plan | ||||||
Defined Benefit Plan Disclosure [Line Items] | ||||||
Service cost | $ 6,460 | $ 11,028 | $ 19,380 | $ 33,084 | $ 30,406 | $ 43,374 |
Interest cost | 14,791 | 11,251 | 44,373 | 33,753 | 55,626 | 43,861 |
Expected return on plan assets | (21,015) | (19,978) | (63,045) | (59,934) | (83,024) | (78,022) |
Amortization of net actuarial loss | 84 | 8,117 | 252 | 24,351 | 8,369 | 34,839 |
Net periodic benefit cost | 320 | 10,418 | 960 | 31,254 | 11,377 | 44,052 |
SERP | ||||||
Defined Benefit Plan Disclosure [Line Items] | ||||||
Service cost | 62 | 106 | 186 | 318 | 292 | 450 |
Interest cost | 531 | 360 | 1,593 | 1,080 | 1,954 | 1,437 |
Amortization of net actuarial loss | 249 | 588 | 748 | 1,763 | 1,335 | 2,424 |
Net periodic benefit cost | 842 | 1,054 | 2,527 | 3,161 | 3,581 | 4,311 |
PBOP | ||||||
Defined Benefit Plan Disclosure [Line Items] | ||||||
Service cost | 317 | 485 | 951 | 1,455 | 1,437 | 1,877 |
Interest cost | 825 | 613 | 2,475 | 1,839 | 3,088 | 2,387 |
Expected return on plan assets | (606) | (807) | (1,818) | (2,421) | (2,625) | (3,230) |
Amortization of prior service costs | 44 | 44 | 132 | 132 | 175 | 372 |
Net periodic benefit cost | $ 580 | $ 335 | $ 1,740 | $ 1,005 | $ 2,075 | $ 1,406 |
Revenue - Schedule of Regulated
Revenue - Schedule of Regulated Operations Revenues: Natural Gas Distribution Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Disaggregation of Revenue [Line Items] | ||||||
Total Regulated operations revenues | $ 394,603 | $ 367,122 | $ 1,832,480 | $ 1,550,684 | $ 2,481,478 | $ 2,001,898 |
Natural Gas Distribution | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 369,093 | 287,821 | 1,857,774 | 1,346,687 | 2,451,171 | 1,776,273 |
Alternative revenue program revenues (deferrals) | 21,840 | 13,609 | (72,251) | 1,132 | (91,861) | 19,648 |
Other revenues | 3,670 | 2,514 | 11,825 | 10,606 | 14,682 | 13,718 |
Total Regulated operations revenues | 394,603 | 303,944 | 1,797,348 | 1,358,425 | 2,373,992 | 1,809,639 |
Residential | Natural Gas Distribution | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 215,376 | 170,196 | 1,277,363 | 913,355 | 1,688,802 | 1,205,176 |
Small commercial | Natural Gas Distribution | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 85,955 | 61,780 | 366,667 | 264,494 | 480,693 | 348,934 |
Large commercial | Natural Gas Distribution | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 27,888 | 19,590 | 84,021 | 60,740 | 108,515 | 78,081 |
Industrial/other | Natural Gas Distribution | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 16,596 | 13,319 | 52,165 | 34,064 | 68,995 | 46,025 |
Transportation | Natural Gas Distribution | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | $ 23,278 | $ 22,936 | $ 77,558 | $ 74,034 | $ 104,166 | $ 98,057 |
Revenue - Schedule of Regulat_2
Revenue - Schedule of Regulated Operations Revenues: Utility Infrastructure Services Segment (Details) - Centuri - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | $ 774,889 | $ 758,466 | $ 2,233,961 | $ 1,988,433 | $ 3,005,855 | $ 2,621,646 |
Master services agreement | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 631,913 | 637,582 | 1,830,242 | 1,700,416 | 2,472,046 | 2,193,195 |
Bid contract | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 142,976 | 120,884 | 403,719 | 288,017 | 533,809 | 428,451 |
Unit price contracts | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 440,787 | 453,718 | 1,191,889 | 1,178,168 | 1,621,852 | 1,544,471 |
Fixed price contracts | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 165,637 | 117,983 | 521,722 | 333,313 | 686,448 | 451,374 |
Time and materials contracts | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 168,465 | 186,765 | 520,350 | 476,952 | 697,555 | 625,801 |
Gas infrastructure services | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 443,083 | 467,751 | 1,173,960 | 1,147,302 | 1,558,476 | 1,487,806 |
Electric power infrastructure services | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | 200,547 | 189,209 | 668,681 | 550,926 | 895,879 | 729,067 |
Other | ||||||
Disaggregation of Revenue [Line Items] | ||||||
Revenue from contracts with customers | $ 131,259 | $ 101,506 | $ 391,320 | $ 290,205 | $ 551,500 | $ 404,773 |
Revenue - Summary of Informatio
Revenue - Summary of Information about Receivables (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Revenue from Contract with Customer [Abstract] | ||
Contracts receivable, net | $ 452,728 | $ 394,022 |
Revenue earned on contracts in progress in excess of billings | 282,759 | 238,059 |
Amounts billed in excess of revenue earned on contracts | $ 51,710 | $ 35,769 |
Revenue - Narrative (Details)
Revenue - Narrative (Details) $ in Millions | 9 Months Ended |
Sep. 30, 2023 USD ($) contract | |
Segment Reporting Information [Line Items] | |
Contract assets increased | $ 44.7 |
Increase of contract liability | $ 15.9 |
Centuri | |
Segment Reporting Information [Line Items] | |
Number of contracts with original duration more than one year | contract | 57 |
Centuri | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-01 | |
Segment Reporting Information [Line Items] | |
Transaction price allocated to unsatisfied performance obligations of contracts | $ 383 |
Transaction price allocated to unsatisfied performance obligations of contracts, period | 2 years |
Revenue - Schedule of Utility I
Revenue - Schedule of Utility Infrastructure Services Contracts Receivable (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Disaggregation of Revenue [Line Items] | ||
Contracts receivable, net | $ 452,728 | $ 394,022 |
Utility Infrastructure Services | ||
Disaggregation of Revenue [Line Items] | ||
Contracts receivable, gross | 457,340 | 398,340 |
Allowance for doubtful accounts | (4,612) | (4,318) |
Contracts receivable, net | 452,728 | 394,022 |
Utility Infrastructure Services | Billed on completed contracts and contracts in progress | ||
Disaggregation of Revenue [Line Items] | ||
Contracts receivable, gross | 453,434 | 395,771 |
Utility Infrastructure Services | Other receivables | ||
Disaggregation of Revenue [Line Items] | ||
Contracts receivable, gross | $ 3,906 | $ 2,569 |
Common Stock - Narrative (Detai
Common Stock - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands | 1 Months Ended | 9 Months Ended | |
Mar. 31, 2023 | Sep. 30, 2023 | Apr. 08, 2021 | |
Class of Stock [Line Items] | |||
Sale of stock, number of shares (in shares) | 4,100 | ||
Sale of stock, price per share (in USD per share) | $ 60.12 | ||
Net proceeds from sale of stock | $ 238,400,000 | ||
Sale of stock, underwriters' discount | $ 8,300,000 | ||
Significant stockholder, ownership benchmark percentage | 15% | ||
Certain Funds Affiliated With Carl C. Icahn | |||
Class of Stock [Line Items] | |||
Sale of stock, number of shares (in shares) | 2,300 | ||
Net proceeds from sale of stock | $ 140,000,000 | ||
Restricted Stock/Unit Plan, and Management Incentive Plan | |||
Class of Stock [Line Items] | |||
Common stock issued (in shares) | 61 | ||
Dividend Reinvestment and Stock Purchase Plan | |||
Class of Stock [Line Items] | |||
Common stock issued (in shares) | 222 | ||
Common stock issued, amount | $ 12,700,000 | ||
Equity Shelf Program | |||
Class of Stock [Line Items] | |||
Sale of stock, amount of common stock offered for sale | $ 500,000,000 | ||
Sale of stock, amount of common stock available for sale | $ 342,000,000 |
Common Stock - Activity of Equi
Common Stock - Activity of Equity Shelf Program (Details) - USD ($) | 9 Months Ended | 12 Months Ended | 29 Months Ended | ||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | |
Class of Stock [Line Items] | |||||
Net proceeds | $ 249,238,000 | $ 459,051,000 | $ 252,015,000 | $ 461,880,000 | |
Equity Shelf Program | |||||
Class of Stock [Line Items] | |||||
Gross proceeds | $ 158,180,343 | ||||
Less: agent commissions | (1,581,803) | ||||
Net proceeds | $ 156,598,540 | ||||
Number of shares sold (in shares) | 2,302,407 | ||||
Weighted average price per share (in USD per share) | $ 68.70 |
Debt - Schedule of Carrying Amo
Debt - Schedule of Carrying Amounts and Estimated Fair Values of Long-Term Debt (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 |
Debt Instrument [Line Items] | |||
Less: current maturities | $ (42,335) | $ (44,557) | |
Long-term debt, less current maturities | 5,235,539 | 4,403,299 | |
Carrying Amount | |||
Debt Instrument [Line Items] | |||
Unamortized discount and debt issuance costs | (18,031) | (20,789) | |
Less: current maturities | (42,335) | (44,557) | |
Long-term debt, less current maturities | 5,235,539 | 4,403,299 | |
Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Long-term debt, less current maturities | 3,500,684 | 3,251,296 | |
Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Less: current maturities | 0 | 0 | |
Long-term debt, less current maturities | 3,500,684 | 3,251,296 | |
Centuri | Carrying Amount | Centuri secured revolving credit facility | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 143,881 | 81,955 | |
Centuri | Fair Value | Centuri secured revolving credit facility | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 143,918 | 82,315 | |
Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Unamortized discount and debt issuance costs | (30,357) | (29,471) | |
Long-term debt | 3,302,143 | 3,003,029 | |
Revolving credit facility and commercial paper | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt | 0 | 50,000 | |
Revolving credit facility and commercial paper | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt | 0 | 50,000 | |
Industrial development revenue bonds | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Unamortized discount and debt issuance costs | (1,459) | (1,733) | |
Long-term debt | 198,541 | 198,267 | |
Other debt obligations | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 104,240 | 126,844 | |
Other debt obligations | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 97,261 | 118,314 | |
8% Series, due 2026 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 8% | ||
8% Series, due 2026 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 75,000 | 75,000 | |
8% Series, due 2026 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 77,489 | 80,027 | |
Medium-term notes, 7.92% series, due 2027 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 7.92% | ||
Medium-term notes, 7.92% series, due 2027 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 25,000 | 25,000 | |
Medium-term notes, 7.92% series, due 2027 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 26,063 | 26,840 | |
Medium-term notes, 6.76% series, due 2027 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 6.76% | ||
Medium-term notes, 6.76% series, due 2027 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 7,500 | 7,500 | |
Medium-term notes, 6.76% series, due 2027 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 7,533 | 7,662 | |
Notes, 5.8%, due 2027 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 5.80% | ||
Notes, 5.8%, due 2027 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,000 | 300,000 | |
Notes, 5.8%, due 2027 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,300 | 305,913 | |
Notes, 3.7%, due 2028 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 3.70% | ||
Notes, 3.7%, due 2028 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,000 | 300,000 | |
Notes, 3.7%, due 2028 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 274,884 | 275,043 | |
Notes, 5.45%, due 2028 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 5.45% | 5.45% | |
Notes, 5.45%, due 2028 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,000 | 0 | |
Notes, 5.45%, due 2028 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 295,212 | 0 | |
Notes, 2.2%, due 2030 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 2.20% | ||
Notes, 2.2%, due 2030 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 450,000 | 450,000 | |
Notes, 2.2%, due 2030 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 353,831 | 353,763 | |
Notes, 4.05%, due 2032 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 4.05% | ||
Notes, 4.05%, due 2032 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 600,000 | 600,000 | |
Notes, 4.05%, due 2032 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 518,934 | 527,052 | |
Notes, 6.1%, due 2041 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 6.10% | ||
Notes, 6.1%, due 2041 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 125,000 | 125,000 | |
Notes, 6.1%, due 2041 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 113,156 | 113,184 | |
Notes, 4.875%, due 2043 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 4.875% | ||
Notes, 4.875%, due 2043 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 250,000 | 250,000 | |
Notes, 4.875%, due 2043 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 193,110 | 195,703 | |
Notes, 3.8%, due 2046 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 3.80% | ||
Notes, 3.8%, due 2046 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,000 | 300,000 | |
Notes, 3.8%, due 2046 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 203,553 | 209,169 | |
Notes, 4.15%, due 2049 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 4.15% | ||
Notes, 4.15%, due 2049 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,000 | 300,000 | |
Notes, 4.15%, due 2049 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 210,048 | 218,712 | |
Notes, 3.18%, due 2051 | Debentures | Southwest Gas Corporation | |||
Debt Instrument [Line Items] | |||
Debt instrument interest rate | 3.18% | ||
Notes, 3.18%, due 2051 | Debentures | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 300,000 | 300,000 | |
Notes, 3.18%, due 2051 | Debentures | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 172,647 | 185,523 | |
Tax-exempt Series A, due 2028 | Industrial development revenue bonds | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
Tax-exempt Series A, due 2028 | Industrial development revenue bonds | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
2003 Series A, due 2038 | Industrial development revenue bonds | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
2003 Series A, due 2038 | Industrial development revenue bonds | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
2008 Series A, due 2038 | Industrial development revenue bonds | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
2008 Series A, due 2038 | Industrial development revenue bonds | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
2009 Series A, due 2039 | Industrial development revenue bonds | Southwest Gas Corporation | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
2009 Series A, due 2039 | Industrial development revenue bonds | Southwest Gas Corporation | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 50,000 | 50,000 | |
$550 Million Term Loan Credit Agreement Due October 2024 | Secured Debt | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 550,000 | 0 | |
$550 Million Term Loan Credit Agreement Due October 2024 | Secured Debt | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 550,000 | 0 | |
Centuri secured term loan facility | Secured Debt | Centuri | Carrying Amount | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | 997,100 | 1,008,550 | |
Centuri secured term loan facility | Secured Debt | Centuri | Fair Value | |||
Debt Instrument [Line Items] | |||
Long-term debt, gross | $ 994,607 | $ 995,852 |
Debt - Narrative (Details)
Debt - Narrative (Details) - USD ($) | 1 Months Ended | 9 Months Ended | |||
Apr. 17, 2023 | Apr. 30, 2023 | Sep. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | |
Debt Instrument [Line Items] | |||||
Short-term debt | $ 57,500,000 | $ 1,542,806,000 | |||
$550 Million Term Loan Credit Agreement Due October 2024 | Secured Debt | |||||
Debt Instrument [Line Items] | |||||
Debt instrument face amount | $ 550,000,000 | ||||
Secured Overnight Financing Rate (SOFR) | $550 Million Term Loan Credit Agreement Due October 2024 | Secured Debt | |||||
Debt Instrument [Line Items] | |||||
Debt, basis spread on variable rate | 1.30% | ||||
Interest adjustment rate | 0.10% | ||||
Floor interest rate | 0% | ||||
Alternative base rate | $550 Million Term Loan Credit Agreement Due October 2024 | Secured Debt | |||||
Debt Instrument [Line Items] | |||||
Debt, basis spread on variable rate | 0.30% | ||||
Floor interest rate | 1% | ||||
Southwest Gas Corporation | |||||
Debt Instrument [Line Items] | |||||
Short-term debt | $ 0 | $ 225,000,000 | |||
Southwest Gas Corporation | Notes, 5.45%, due 2028 | Debentures | |||||
Debt Instrument [Line Items] | |||||
Debt instrument face amount | $ 300,000,000 | ||||
Debt instrument interest rate | 5.45% | 5.45% | |||
Southwest Gas Corporation | $450 Million Term Loan | |||||
Debt Instrument [Line Items] | |||||
Debt instrument face amount | $ 450,000,000 | ||||
Debt instrument, term | 364 days | ||||
Centuri | Centuri Secured Term Loan Facility And Revolving Credit Facility | |||||
Debt Instrument [Line Items] | |||||
Credit facility maximum borrowing capacity | $ 1,545,000,000 | ||||
Debt secured by assets | 2,600,000,000 | ||||
Borrowings outstanding under facility | 1,141,000,000 | ||||
Centuri | Centuri secured term loan facility | |||||
Debt Instrument [Line Items] | |||||
Credit facility maximum borrowing capacity | 1,145,000,000 | ||||
$400 Million Credit Facility | Southwest Gas Corporation | |||||
Debt Instrument [Line Items] | |||||
Credit facility maximum borrowing capacity | 400,000,000 | ||||
Line of credit designated as long term debt | 150,000,000 | ||||
Line of credit designated for working capital purposes | 250,000,000 | ||||
Long-term debt outstanding | 0 | ||||
Short-term debt | $ 0 | ||||
$400 Million Credit Facility | Southwest Gas Corporation | Secured Overnight Financing Rate (SOFR) | |||||
Debt Instrument [Line Items] | |||||
Debt, basis spread on variable rate | 1.125% | ||||
$400 Million Credit Facility | Southwest Gas Corporation | Alternative base rate | |||||
Debt Instrument [Line Items] | |||||
Debt, basis spread on variable rate | 0.125% | ||||
Centuri secured revolving credit facility | Centuri | Line of Credit | |||||
Debt Instrument [Line Items] | |||||
Credit facility maximum borrowing capacity | $ 400,000,000 | ||||
$300 Million Credit Facility | |||||
Debt Instrument [Line Items] | |||||
Credit facility maximum borrowing capacity | 300,000,000 | ||||
Borrowings outstanding under facility | $ 57,500,000 |
Other Comprehensive Income an_3
Other Comprehensive Income and Accumulated Other Comprehensive Income - Related Tax Effects Allocated to OCI (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | $ (2,002) | $ (4,349) | $ 906 | $ (2,276) | $ 8,434 | $ 9,706 |
Other comprehensive income (loss), tax | (63) | (355) | (187) | (1,195) | (1,725) | (3,987) |
Total other comprehensive income, net of tax | $ (2,065) | $ (4,704) | $ 719 | $ (3,471) | $ 6,709 | $ 5,719 |
Statutory income tax rate | 24% | 24% | 24% | 24% | 24% | 24% |
Southwest Gas Corporation | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | $ 259 | $ 1,481 | $ 776 | $ 4,987 | $ 7,174 | $ 16,625 |
Other comprehensive income (loss), tax | (63) | (355) | (187) | (1,195) | (1,725) | (3,987) |
Total other comprehensive income, net of tax | 196 | 1,126 | 589 | 3,792 | 5,449 | 12,638 |
Pension plans other comprehensive income (loss) | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | 776 | |||||
Other comprehensive income (loss), tax | (187) | |||||
Total other comprehensive income, net of tax | 589 | |||||
Pension plans other comprehensive income (loss) | Southwest Gas Corporation | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | 776 | 4,442 | 7,174 | 15,538 | ||
Other comprehensive income (loss), tax | (187) | (1,066) | (1,725) | (3,728) | ||
Total other comprehensive income, net of tax | 589 | 3,376 | 5,449 | 11,810 | ||
Amortization of prior service cost | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | 132 | |||||
Other comprehensive income (loss), tax | (33) | |||||
Total other comprehensive income, net of tax | 99 | |||||
Amortization of prior service cost | Southwest Gas Corporation | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Reclassification from AOCI, before Tax | 44 | 44 | 132 | 132 | 175 | 372 |
Reclassification from AOCI, tax | (11) | (10) | (33) | (32) | (43) | (90) |
Reclassification from AOCI, net of tax | 33 | 34 | 99 | 100 | 132 | 282 |
Other comprehensive income (loss), before tax | 132 | |||||
Other comprehensive income (loss), tax | (33) | |||||
Total other comprehensive income, net of tax | 99 | |||||
Amortization of net actuarial (gain)/loss | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | 1,000 | |||||
Other comprehensive income (loss), tax | (240) | |||||
Total other comprehensive income, net of tax | 760 | |||||
Amortization of net actuarial (gain)/loss | Southwest Gas Corporation | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Reclassification from AOCI, before Tax | 333 | 8,705 | 1,000 | 26,114 | 9,704 | 37,263 |
Reclassification from AOCI, tax | (80) | (2,089) | (240) | (6,267) | (2,330) | (8,942) |
Reclassification from AOCI, net of tax | 253 | 6,616 | 760 | 19,847 | 7,374 | 28,321 |
Other comprehensive income (loss), before tax | 1,000 | |||||
Other comprehensive income (loss), tax | (240) | |||||
Total other comprehensive income, net of tax | 760 | |||||
Other comprehensive income (loss) before reclassifications, before tax | 4,079 | 59,176 | ||||
Other comprehensive income (loss) before reclassifications, tax | (980) | (14,202) | ||||
Other comprehensive income (loss) before reclassifications, net of tax | 3,099 | 44,974 | ||||
Regulatory adjustment | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss), before tax | (356) | |||||
Other comprehensive income (loss), tax | 86 | |||||
Total other comprehensive income, net of tax | (270) | |||||
Regulatory adjustment | Southwest Gas Corporation | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Reclassification from AOCI, before Tax | (118) | (7,268) | (356) | (21,804) | (6,784) | (81,273) |
Reclassification from AOCI, tax | 28 | 1,744 | 86 | 5,233 | 1,628 | 19,506 |
Reclassification from AOCI, net of tax | (90) | (5,524) | (270) | (16,571) | (5,156) | (61,767) |
Other comprehensive income (loss), before tax | (356) | |||||
Other comprehensive income (loss), tax | 86 | |||||
Total other comprehensive income, net of tax | (270) | |||||
FSIRS | Southwest Gas Corporation | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Reclassification from AOCI, before Tax | 0 | 545 | 0 | 1,087 | ||
Reclassification from AOCI, tax | 0 | (129) | 0 | (259) | ||
Reclassification from AOCI, net of tax | 0 | 416 | 0 | 828 | ||
Other comprehensive income (loss), before tax | 0 | 545 | 0 | 1,087 | ||
Other comprehensive income (loss), tax | 0 | (129) | 0 | (259) | ||
Total other comprehensive income, net of tax | 0 | 416 | 0 | 828 | ||
Foreign currency items | ||||||
Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
Other comprehensive income (loss) before reclassifications, before tax | (2,261) | (5,830) | 130 | (7,263) | 1,260 | (6,919) |
Other comprehensive income (loss) before reclassifications, tax | 0 | 0 | 0 | 0 | 0 | 0 |
Other comprehensive income (loss) before reclassifications, net of tax | $ (2,261) | $ (5,830) | $ 130 | $ (7,263) | $ 1,260 | $ (6,919) |
Other Comprehensive Income an_4
Other Comprehensive Income and Accumulated Other Comprehensive Income - AOCI Rollforward (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance, attributable to parent | $ 3,058,759 | |||||
Other comprehensive income (loss), before tax | $ (2,002) | $ (4,349) | 906 | $ (2,276) | $ 8,434 | $ 9,706 |
Other comprehensive income (loss), tax | (63) | (355) | (187) | (1,195) | (1,725) | (3,987) |
Total other comprehensive income, net of tax | (2,065) | $ (4,704) | 719 | $ (3,471) | 6,709 | $ 5,719 |
Ending balance, attributable to parent | $ 3,238,745 | $ 3,238,745 | $ 3,238,745 | |||
Statutory income tax rate | 24% | 24% | 24% | 24% | 24% | 24% |
Southwest Gas Corporation | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance | $ 2,529,039 | |||||
Beginning balance, attributable to parent | $ 2,569,175 | |||||
Other comprehensive income (loss), before tax | $ 259 | $ 1,481 | 776 | $ 4,987 | 7,174 | $ 16,625 |
Other comprehensive income (loss), tax | (63) | (355) | (187) | (1,195) | (1,725) | (3,987) |
Total other comprehensive income, net of tax | 196 | 1,126 | 589 | 3,792 | 5,449 | 12,638 |
Ending balance | 3,135,296 | 2,529,039 | 3,135,296 | 2,529,039 | 3,135,296 | 2,529,039 |
Ending balance, attributable to parent | 3,135,296 | 3,135,296 | 3,135,296 | |||
AOCI Attributable to Parent | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance | (41,458) | (45,528) | (44,242) | (46,761) | (50,232) | |
Ending balance | (43,523) | (50,232) | (43,523) | (50,232) | (43,523) | (50,232) |
AOCI Attributable to Parent | Southwest Gas Corporation | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance | (37,868) | (44,247) | (38,261) | (46,913) | (43,121) | |
Ending balance | (37,672) | $ (43,121) | (37,672) | (43,121) | (37,672) | (43,121) |
Defined Benefit Plans | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance, before tax | (50,342) | |||||
Beginning balance, tax (expense) benefit | 12,081 | |||||
Beginning balance | (38,261) | |||||
Other comprehensive income (loss), before tax | 776 | |||||
Other comprehensive income (loss), tax | (187) | |||||
Total other comprehensive income, net of tax | 589 | |||||
Ending balance, before tax | (49,566) | (49,566) | (49,566) | |||
Ending balance, tax (expense) benefit | 11,894 | 11,894 | 11,894 | |||
Ending balance | (37,672) | (37,672) | (37,672) | |||
Defined Benefit Plans | Southwest Gas Corporation | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance, attributable to parent, before tax | (50,342) | |||||
Beginning balance, attributable to parent, tax (expense) benefit | 12,081 | |||||
Beginning balance, attributable to parent | (38,261) | |||||
Other comprehensive income (loss), before tax | 776 | 4,442 | 7,174 | 15,538 | ||
Other comprehensive income (loss), tax | (187) | (1,066) | (1,725) | (3,728) | ||
Total other comprehensive income, net of tax | 589 | $ 3,376 | 5,449 | 11,810 | ||
Ending balance, attributable to parent, before tax | (49,566) | (49,566) | (49,566) | |||
Ending balance, attributable to parent, tax (expense) benefit | 11,894 | 11,894 | 11,894 | |||
Ending balance, attributable to parent | (37,672) | (37,672) | (37,672) | |||
Amortization of prior service cost | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss), before tax | 132 | |||||
Other comprehensive income (loss), tax | (33) | |||||
Total other comprehensive income, net of tax | 99 | |||||
Amortization of prior service cost | Southwest Gas Corporation | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss), before tax | 132 | |||||
Other comprehensive income (loss), tax | (33) | |||||
Total other comprehensive income, net of tax | 99 | |||||
Amortization of net actuarial loss | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss), before tax | 1,000 | |||||
Other comprehensive income (loss), tax | (240) | |||||
Total other comprehensive income, net of tax | 760 | |||||
Amortization of net actuarial loss | Southwest Gas Corporation | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss) before reclassifications, before tax | 4,079 | 59,176 | ||||
Other comprehensive income (loss) before reclassifications, net of tax | 3,099 | 44,974 | ||||
Other comprehensive income (loss), before tax | 1,000 | |||||
Other comprehensive income (loss), tax | (240) | |||||
Total other comprehensive income, net of tax | 760 | |||||
Other Comprehensive Income (Loss) before Reclassifications, Tax | 980 | $ 14,202 | ||||
Regulatory adjustment | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss), before tax | (356) | |||||
Other comprehensive income (loss), tax | 86 | |||||
Total other comprehensive income, net of tax | (270) | |||||
Regulatory adjustment | Southwest Gas Corporation | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss), before tax | (356) | |||||
Other comprehensive income (loss), tax | 86 | |||||
Total other comprehensive income, net of tax | (270) | |||||
Foreign Currency Items | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Beginning balance, before tax | (5,981) | |||||
Beginning balance, tax (expense) benefit | 0 | |||||
Beginning balance | (5,981) | |||||
Other comprehensive income (loss) before reclassifications, before tax | 130 | |||||
Other comprehensive income (loss) before reclassifications, net of tax | 130 | |||||
Ending balance, before tax | (5,851) | (5,851) | (5,851) | |||
Ending balance, tax (expense) benefit | 0 | 0 | 0 | |||
Ending balance | $ (5,851) | (5,851) | $ (5,851) | |||
Other Comprehensive Income (Loss) before Reclassifications, Tax | 0 | |||||
AOCI Including Portion Attributable to Noncontrolling Interest | ||||||
AOCI Attributable to Parent, Net of Tax [Roll Forward] | ||||||
Other comprehensive income (loss) before reclassifications, net of tax | $ 719 |
Other Comprehensive Income an_5
Other Comprehensive Income and Accumulated Other Comprehensive Income - Amounts Recognized Before Tax, Defined Benefit Plans (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Equity [Abstract] | ||
Net actuarial loss | $ (359,113) | $ (360,113) |
Prior service cost | (1,221) | (1,353) |
Less: amount recognized in regulatory assets | 310,768 | 311,124 |
Recognized in AOCI | $ (49,566) | $ (50,342) |
Segment Information - Narrative
Segment Information - Narrative (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||||
Nov. 30, 2021 USD ($) | Sep. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) segment | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Apr. 30, 2023 USD ($) | |
Segment Reporting [Abstract] | |||||||||
Number of reportable segments | segment | 2 | ||||||||
Segment Reporting Information [Line Items] | |||||||||
Interest expense | $ 71,998,000 | $ 64,373,000 | $ 218,679,000 | $ 165,942,000 | $ 295,487,000 | $ 203,939,000 | |||
$550 Million Term Loan Credit Agreement Due October 2024 | Secured Debt | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Interest expense | 10,000,000 | ||||||||
Debt instrument face amount | $ 550,000,000 | ||||||||
Corporate and administrative | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Spinoff transaction costs | 3,000,000 | 7,300,000 | |||||||
Other costs | 5,700,000 | ||||||||
Corporate and administrative | MountainWest Acquisition Loan | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Interest expense | $ 32,000,000 | $ 52,000,000 | |||||||
Debt issuance costs written off | $ 2,500,000 | ||||||||
Disposal Group, Held-for-sale, Not Discontinued Operations | MountainWest | |||||||||
Segment Reporting Information [Line Items] | |||||||||
Disposition related settlement payment | $ 28,400,000 | $ 28,400,000 | |||||||
Loss on disposal adjustment | 21,000,000 | ||||||||
Accrued post-closing payment | $ 7,400,000 |
Segment Information - Accounts
Segment Information - Accounts Receivable Not Eliminated During Consolidation (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 |
Segment Reporting Information [Line Items] | ||
Accounts receivable, net of allowance | $ 903,365 | $ 866,246 |
Centuri | Related Party | ||
Segment Reporting Information [Line Items] | ||
Accounts receivable, net of allowance | $ 11,764 | $ 18,067 |
Segment Information - Schedule
Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended | |||
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | |
Segment Reporting Information [Line Items] | ||||||
Revenues | $ 1,169,492 | $ 1,125,588 | $ 4,066,441 | $ 3,539,117 | $ 5,487,333 | $ 4,623,544 |
Net income (loss) | 3,231 | (12,309) | 78,020 | 77,294 | (202,564) | 147,237 |
Operating Segments | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 1,140,242 | 1,089,032 | 3,978,081 | 3,440,257 | 5,363,175 | 4,497,067 |
Intersegment Eliminations | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | (29,250) | (36,556) | (88,360) | (98,860) | (124,158) | (126,477) |
Other | ||||||
Segment Reporting Information [Line Items] | ||||||
Net income (loss) | (11,474) | (16,775) | (81,159) | (49,962) | (107,199) | (72,193) |
Natural Gas Distribution | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 394,603 | 303,944 | 1,797,348 | 1,358,425 | 2,373,992 | 1,809,639 |
Natural Gas Distribution | Operating Segments | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 394,603 | 303,944 | 1,797,348 | 1,358,425 | 2,373,992 | 1,809,639 |
Net income (loss) | (3,251) | (22,199) | 150,565 | 87,330 | 217,615 | 171,881 |
Natural Gas Distribution | Intersegment Eliminations | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 0 | 0 | 0 | 0 | 0 | 0 |
Utility Infrastructure Services | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 774,889 | 758,466 | 2,233,961 | 1,988,433 | 3,005,855 | 2,621,646 |
Utility Infrastructure Services | Operating Segments | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 745,639 | 721,910 | 2,145,601 | 1,889,573 | 2,881,697 | 2,495,169 |
Net income (loss) | 17,956 | 14,345 | 24,902 | (4,400) | 31,367 | 3,223 |
Utility Infrastructure Services | Intersegment Eliminations | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | (29,250) | (36,556) | (88,360) | (98,860) | (124,158) | (126,477) |
Pipeline and Storage | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 0 | 63,178 | 35,132 | 192,259 | 107,486 | 192,259 |
Pipeline and Storage | Operating Segments | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | 0 | 63,178 | 35,132 | 192,259 | 107,486 | 192,259 |
Net income (loss) | 0 | 12,320 | (16,288) | 44,326 | (344,347) | 44,326 |
Pipeline and Storage | Intersegment Eliminations | ||||||
Segment Reporting Information [Line Items] | ||||||
Revenues | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 |
Dispositions (Details)
Dispositions (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations - MountainWest - USD ($) $ in Millions | 3 Months Ended | ||
Sep. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | |||
Ownership percentage disposed | 100% | ||
Discontinued operation, consideration | $ 1,500 | ||
Loss on disposal adjustment | $ 21 | ||
Accrued post-closing payment | 7.4 | ||
Disposition related settlement payment | $ 28.4 | $ 28.4 |
Subsequent Events (Details)
Subsequent Events (Details) | Nov. 03, 2023 $ / oneTen-thousandthShare shares | Sep. 30, 2023 $ / shares | Dec. 31, 2022 $ / shares |
Subsequent Event [Line Items] | |||
Common stock, par (in USD per share) | $ / shares | $ 1 | $ 1 | |
Subsequent Event | |||
Subsequent Event [Line Items] | |||
Common stock dividend, number of preferred stock purchase right per share | shares | 1 | ||
Preferred stock purchase right, purchase price per one ten-thousandth of one preferred stock | $ / oneTen-thousandthShare | 300 |
Uncategorized Items - swx-20230
Label | Element | Value |
Cash And Cash Equivalents Included In Current Assets Held For Sale | swx_CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale | $ 23,803,000 |
Cash And Cash Equivalents Included In Current Assets Held For Sale | swx_CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale | 0 |
Cash And Cash Equivalents Included In Current Assets Held For Sale | swx_CashAndCashEquivalentsIncludedInCurrentAssetsHeldForSale | $ 0 |