Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net Income	$ 89,796	$ 83,466	$ 71,498
Adjustments to reconcile net income to net operating cash:
Depreciation and amortization	68,973	62,661	58,117
Depreciation and accretion included in operations expenses	11,044	10,228	9,599
Deferred income taxes, net	23,705	26,658	24,709
Gain on sale of discontinued operations	0	0	(200)
Realized (loss) on sale of assets/commodity contracts	(7,532)	(9,026)	(6,243)
Unrealized loss (gain) on investments/commodity contracts	1,817	(1,464)	(1,482)
Employee benefits and compensation	(1,111)	(53)	207
Share-based compensation	6,438	5,945	4,829
Changes in assets and liabilities:
Accounts receivable and accrued revenue	(11,159)	(1,634)	(7,426)
Propane inventory, storage gas and other inventory	(7,847)	(9,517)	1,709
Regulatory assets/liabilities, net	(38,671)	(18,464)	(4,973)
Prepaid expenses and other current assets	9,124	(1,520)	2,424
Accounts payable and other accrued liabilities	2,724	8,285	4,941
Income taxes receivable	14,919	(4,575)	7,165
Customer deposits and refunds	664	3,176	2,238
Accrued compensation	(1,231)	1,198	(2,473)
Other assets and liabilities, net	(2,771)	(4,860)	(5,723)
Net cash provided by operating activities	158,882	150,504	158,916
Investing Activities
Property, plant and equipment expenditures	(128,276)	(186,924)	(165,511)
Proceeds from sale of assets	3,860	1,033	8,080
Acquisitions, net of cash acquired	(11,766)	(36,371)	(22,231)
Proceeds from the sale of discontinued operations	0	0	200
Environmental expenditures	(266)	(761)	(2,169)
Net cash used in investing activities	(136,448)	(223,023)	(181,631)
Financing Activities
Common stock dividends	(35,147)	(31,537)	(27,161)
Payments for Repurchase of Common Stock	4,534	15,851	22,627
Proceeds from issuance of common stock, net of expenses	0	0	60,980
Payment, Tax Withholding, Share-based Payment Arrangement	(2,838)	(1,478)	(977)
Change in cash overdrafts due to outstanding checks	955	(1,154)	(825)
Net borrowings (repayments) under line of credit agreements	(20,608)	46,647	(71,637)
Proceeds from issuance of long-term debt	49,859	59,478	89,822
Repayment of long-term debt and finance lease obligation	(17,961)	(13,811)	(53,600)
Net cash (used in) provided by financing activities	(21,206)	73,996	19,229
Net (Decrease) Increase in Cash and Cash Equivalents	1,228	1,477	(3,486)
Cash and Cash Equivalents — Beginning of Period	4,976	3,499	6,985
Cash and Cash Equivalents — End of Period	$ 6,204	$ 4,976	$ 3,499