Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment
Regulated Energy	$ 1,577,576	$ 1,441,473
Unregulated Energy	300,647	265,209
Other businesses and eliminations	30,769	39,850
Total property, plant and equipment	1,908,992	1,746,532
Accumulated depreciation	368,743	336,876
Construction Work in Progress	60,929	54,141
Net property, plant and equipment	1,601,178	1,463,797
Current Assets
Cash and cash equivalents	3,499	6,985
Accounts Receivable, before Allowance for Credit Loss, Current	61,675	50,899
Allowance for uncollectible accounts	4,785	1,337
Trade receivables, net	56,890	49,562
Accrued Revenue	21,527	20,846
Propane inventory, at average cost	5,906	5,824
Other inventory, at average cost	5,539	6,067
Regulatory assets	10,786	5,144
Storage gas prepayments	2,455	3,541
Income taxes receivable	12,885	20,050
Prepaid expenses	13,239	13,928
Derivative assets, at fair value	3,269	0
Other current assets	436	2,879
Total current assets	136,431	134,826
Deferred Charges and Other Assets
Goodwill	38,731	32,668
Other intangible assets, net	8,292	8,129
Investments, Fair Value Disclosure	10,776	9,229
Operating Lease, Right-of-Use Asset	11,194	11,563
Regulatory assets	113,806	73,407
Receivables and other deferred charges	12,079	49,579
Total deferred charges and other assets	194,878	184,575
Total Assets	1,932,487	1,783,198
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)	8,499	7,984
Additional paid-in capital	348,482	259,253
Retained earnings	342,969	300,607
Accumulated other comprehensive loss	(2,865)	(6,267)
Deferred compensation obligation	5,679	4,543
Treasury Stock, Value	(5,679)	(4,543)
Total stockholders’ equity	697,085	561,577
Long-term debt, net of current maturities	508,499	440,168
Total capitalization	1,205,584	1,001,745
Current Liabilities
Current portion of long-term debt	13,600	45,600
Short-term borrowing	175,644	247,371
Accounts payable	60,253	54,068
Customer deposits and refunds	33,302	30,939
Accrued interest	2,905	2,554
Dividends payable	7,683	6,644
Accrued compensation	13,994	16,236
Regulatory liabilities	6,284	5,991
Derivative liabilities, at fair value	127	1,844
Other accrued liabilities	15,240	12,077
Total current liabilities	329,032	423,324
Deferred Credits and Other Liabilities
Deferred income taxes	205,388	180,656
Regulatory liabilities	142,736	127,744
Environmental liabilities	4,299	6,468
Other pension and benefit costs	30,673	30,569
Operating Lease, Liability, Noncurrent	9,872	9,896
Deferred investment tax credits and other liabilities	4,903	2,796
Total deferred credits and other liabilities	397,871	358,129
Commitments and Contingencies
Total Capitalization and Liabilities	$ 1,932,487	$ 1,783,198