CONDENSED CONSOLIDATED BALANCE SHEETS - Southwest - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Regulated operations plant:
Gas plant	$ 10,891,910	$ 10,789,690
Less: accumulated depreciation	(3,443,053)	(3,397,736)
Construction work in progress	216,262	202,068
Net regulated operations plant	7,665,119	7,594,022
Other property and investments, net	1,313,291	1,316,479
Current assets:
Cash and cash equivalents	624,666	222,697
Accounts receivable, net of allowances	755,947	707,127
Accrued utility revenue	52,000	84,900
Income taxes receivable, net	16,937	16,816
Deferred purchased gas costs	367,954	291,145
Prepaid and other current assets	229,072	292,082
Total current assets	2,046,576	1,614,767
Noncurrent assets:
Goodwill	1,773,671	1,781,332
Deferred charges and other assets	450,786	458,536
Total noncurrent assets	2,224,501	2,239,989
Total assets	13,249,487	12,765,257
Capitalization:
Common stock	68,479	62,052
Additional paid-in capital	2,273,837	1,824,216
Accumulated other comprehensive loss, net	(43,972)	(46,761)
Retained earnings	1,190,738	1,114,313
Total equity	3,489,082	2,953,820
Long-term debt, less current maturities	4,559,758	4,115,684
Total capitalization	8,184,824	7,266,221
Current liabilities:
Current maturities of long-term debt	291,069	297,324
Short-term debt	1,474,000	1,909,000
Accounts payable	256,606	353,365
Customer deposits	57,620	59,327
Accrued general taxes	83,897	53,473
Accrued interest	42,421	30,964
Other current liabilities	413,872	396,126
Total current liabilities	2,630,198	3,112,049
Deferred income taxes and other credits:
Deferred income taxes and investment tax credits, net	803,771	768,868
Accumulated removal costs	488,908	480,583
Other deferred credits and other long-term liabilities	1,141,786	1,137,536
Total deferred income taxes and other credits	2,434,465	2,386,987
Total capitalization and liabilities	13,249,487	12,765,257
Southwest Gas Corporation
Regulated operations plant:
Gas plant	8,997,234	8,901,575
Less: accumulated depreciation	(2,572,184)	(2,538,508)
Construction work in progress	196,574	183,485
Net regulated operations plant	6,621,624	6,546,552
Other property and investments, net	151,168	153,093
Current assets:
Cash and cash equivalents	475,876	38,691
Accounts receivable, net of allowances	224,885	169,666
Accrued utility revenue	52,000	84,900
Income taxes receivable, net	5,351	7,826
Deferred purchased gas costs	367,954	291,145
Receivable from parent	271	1,031
Prepaid and other current assets	180,640	242,243
Total current assets	1,306,977	835,502
Noncurrent assets:
Goodwill	10,095	10,095
Deferred charges and other assets	394,454	405,021
Total noncurrent assets	404,549	415,116
Total assets	8,484,318	7,950,263
Capitalization:
Common stock	49,112	49,112
Additional paid-in capital	1,620,616	1,618,911
Accumulated other comprehensive loss, net	(45,371)	(46,913)
Retained earnings	987,177	906,827
Total equity	2,611,534	2,527,937
Long-term debt, less current maturities	2,903,556	2,440,603
Total capitalization	5,515,090	4,968,540
Current liabilities:
Current maturities of long-term debt	250,000	275,000
Short-term debt	250,000	250,000
Accounts payable	148,486	234,070
Customer deposits	53,094	56,127
Accrued general taxes	81,423	53,064
Accrued interest	34,676	22,926
Other current liabilities	169,781	146,422
Total current liabilities	987,460	1,037,609
Deferred income taxes and other credits:
Deferred income taxes and investment tax credits, net	673,874	638,828
Accumulated removal costs	432,000	424,000
Other deferred credits and other long-term liabilities	875,894	881,286
Total deferred income taxes and other credits	1,981,768	1,944,114
Total capitalization and liabilities	$ 8,484,318	$ 7,950,263