CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Net Cash Provided by Operating Activities	$ 121,416	$ 173,396
Cash Flows from Investing Activities:
Capital Expenditures	(357,844)	(200,770)
Acquisition-related Working Capital Settlement	15,600	0
Cash Paid for Acquisition, Net of Cash Acquired	(3,952)	(1,740,375)
Cash Paid for Purchase of New Contract	0	(11,389)
Proceeds from Sale of Property, Plant & Equipment	26,360	51
Investment in Long-Term Receivables	(10,939)	(6,167)
Proceeds from Long-Term Receivables	7,604	7,414
Investment in Affiliates	(4,102)	(9,524)
Advances to Affiliates	(1,902)	0
Net Repayment of Notes Receivable - Affiliates	0	1,360
Net Cash Used in Investing Activities	(327,481)	(1,960,548)
Cash Flows from Financing Activities:
Net Borrowings from Short-Term Credit Facilities	541,800	75,000
Proceeds from Issuance of Long-Term Debt	244,657	1,592,500
Principal Repayments of Long-Term Debt	(725,000)	(10,000)
Payments for Issuance of Long-Term Debt	(2,106)	(16,914)
Net Settlement of Restricted Stock	0	(776)
Dividends on Common Stock	(53,124)	(46,233)
Proceeds from Sale of Common Stock	189,032	173,750
Payments for the Issuance of Common Stock	0	(6,554)
Net Cash Provided by Financing Activities	195,259	1,760,773
Net Decrease in Cash, Cash Equivalents and Restricted Cash	(10,806)	(26,379)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	31,679	39,695
Cash, Cash Equivalents and Restricted Cash at End of Period	20,873	13,316
Payments for (Proceeds from) Life Insurance Policies	(1,694)	1,148
SJG
Net Cash Provided by Operating Activities	114,482	86,788
Cash Flows from Investing Activities:
Capital Expenditures	(178,666)	(168,654)
Investment in Long-Term Receivables	(10,939)	(6,167)
Proceeds from Long-Term Receivables	7,604	7,414
Net Cash Used in Investing Activities	(182,001)	(167,407)
Cash Flows from Financing Activities:
Net Borrowings from Short-Term Credit Facilities	67,700	88,200
Proceeds from Issuance of Long-Term Debt	10,000	0
Principal Repayments of Long-Term Debt	(10,000)	(10,000)
Payments from Issuance of Long-Term Debt	(12)	(21)
Net Cash Provided by Financing Activities	67,688	78,179
Net Decrease in Cash, Cash Equivalents and Restricted Cash	169	(2,440)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	3,262	4,619
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 3,431	$ 2,179