Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment
Regulated Energy	$ 1,802,999	$ 1,720,287
Unregulated Energy	393,215	357,259
Other businesses and eliminations	29,890	35,418
Total property, plant and equipment	2,226,104	2,112,964
Accumulated depreciation	462,926	417,479
Construction Work in Progress	47,295	49,393
Net property, plant and equipment	1,810,473	1,744,878
Current Assets
Cash and cash equivalents	6,204	4,976
Accounts Receivable, before Allowance for Credit Loss, Current	65,758	61,623
Allowance for uncollectible accounts	2,877	3,141
Trade receivables, net	62,881	58,482
Accrued Revenue	29,206	22,513
Propane inventory, at average cost	9,365	11,644
Other inventory, at average cost	16,896	9,345
Regulatory assets	41,439	19,794
Storage gas prepayments	6,364	3,691
Income taxes receivable	2,541	17,460
Prepaid expenses	15,865	17,121
Derivative assets, at fair value	2,787	4,277
Other current assets	428	1,033
Total current assets	193,976	170,336
Deferred Charges and Other Assets
Goodwill	46,213	44,708
Other intangible assets, net	17,859	13,192
Investments, Fair Value Disclosure	10,576	12,095
Operating Lease, Right-of-Use Asset	14,421	10,139
Regulatory assets	108,214	104,173
Receivables and other deferred charges	12,323	12,549
Total deferred charges and other assets	210,588	199,655
Total Assets	2,215,037	2,114,869
Stockholders’ equity
Preferred stock, par value $0.01 per share (authorized 2,000,000 shares), no shares issued and outstanding	0	0
Common stock, par value $0.4867 per share (authorized 50,000,000 shares)	8,635	8,593
Additional paid-in capital	380,036	371,162
Retained earnings	445,509	393,072
Accumulated other comprehensive income (loss)	(1,379)	1,303
Deferred compensation obligation	7,060	7,240
Treasury Stock, Value	(7,060)	(7,240)
Total stockholders’ equity	832,801	774,130
Long-term debt, net of current maturities	578,388	549,903
Total capitalization	1,411,189	1,324,033
Current Liabilities
Current portion of long-term debt	21,483	17,962
Short-term borrowing	202,157	221,634
Accounts payable	61,496	52,628
Customer deposits and refunds	37,152	36,488
Accrued interest	3,349	2,775
Dividends payable	9,492	8,466
Accrued compensation	14,660	15,505
Regulatory liabilities	5,031	2,312
Derivative liabilities, at fair value	585	704
Other accrued liabilities	13,618	17,920
Total current liabilities	369,023	376,394
Deferred Credits and Other Liabilities
Deferred income taxes	256,167	233,550
Regulatory liabilities	142,989	142,488
Environmental liabilities	3,272	3,538
Other pension and benefit costs	16,965	24,120
Operating Lease, Liability, Noncurrent	12,392	8,571
Deferred investment tax credits and other liabilities	1,410	2,136
Total deferred credits and other liabilities	434,825	414,442
Commitments and Contingencies
Total Capitalization and Liabilities	2,215,037	2,114,869
Regulated Energy	1,802,999	1,720,287
Unregulated Energy	393,215	357,259
Other businesses and eliminations	29,890	35,418
Total property, plant and equipment	2,226,104	2,112,964
Accumulated depreciation	462,926	417,479
Construction Work in Progress	47,295	49,393
Net property, plant and equipment	1,810,473	1,744,878
Cash and cash equivalents	6,204	4,976
Accounts Receivable, before Allowance for Credit Loss, Current	65,758	61,623
Allowance for uncollectible accounts	2,877	3,141
Trade receivables, net	62,881	58,482
Accrued Revenue	29,206	22,513
Propane inventory, at average cost	9,365	11,644
Other inventory, at average cost	16,896	9,345
Regulatory assets	41,439	19,794
Storage gas prepayments	6,364	3,691
Income taxes receivable	2,541	17,460
Prepaid expenses	15,865	17,121
Derivative assets, at fair value	2,787	4,277
Other current assets	428	1,033
Disposal Group, Including Discontinued Operation, Assets, Current	193,976	170,336
Goodwill	46,213	44,708
Other intangible assets, net	17,859	13,192
Investments, Fair Value Disclosure	10,576	12,095
Energy Marketing Contracts Assets, Noncurrent	982	2,799
Operating Lease, Right-of-Use Asset	14,421	10,139
Regulatory assets	108,214	104,173
Receivables and other deferred charges	12,323	12,549
Deferred Charges And Other Assets	210,588	199,655
Total identifiable assets	2,215,037	2,114,869
Preferred stock, par value $0.01 per share (authorized 2,000,000 shares), no shares issued and outstanding	0	0
Common stock, par value $0.4867 per share (authorized 50,000,000 shares)	8,635	8,593
Additional paid-in capital	380,036	371,162
Retained earnings	445,509	393,072
Accumulated other comprehensive income (loss)	(1,379)	1,303
Deferred compensation obligation	7,060	7,240
Treasury Stock, Value	7,060	7,240
Stockholders' Equity Attributable to Parent	832,801	774,130
Long-term debt, net of current maturities	578,388	549,903
Total capitalization	1,411,189	1,324,033
Current portion of long-term debt	21,483	17,962
Short-term borrowing	202,157	221,634
Accounts payable	61,496	52,628
Customer deposits and refunds	37,152	36,488
Accrued interest	3,349	2,775
Dividends payable	9,492	8,466
Accrued compensation	14,660	15,505
Regulatory liabilities	5,031	2,312
Derivative liabilities, at fair value	585	704
Other accrued liabilities	13,618	17,920
Liabilities, Current	369,023	376,394
Deferred income taxes	256,167	233,550
Regulatory liabilities	142,989	142,488
Environmental liabilities	3,272	3,538
Other pension and benefit costs	16,965	24,120
Energy Marketing Contract Liabilities, Noncurrent	1,630	39
Operating Lease, Liability, Noncurrent	12,392	8,571
Deferred investment tax credits and other liabilities	1,410	2,136
Deferred Credits and Other Liabilities	434,825	414,442
Commitments and Contingencies
Liabilities and Equity	$ 2,215,037	$ 2,114,869