Related Party Transactions 2 (Details) (USD $)																	12 Months Ended
	Sep. 30, 2012 Successor		Sep. 30, 2012 Successor CrossCountry Citrus	Sep. 30, 2012 Successor Southern Union	Sep. 30, 2012 Successor Southern Union Income taxes payable		Sep. 30, 2012 Successor Southern Union Other accounts payable		Sep. 30, 2012 Successor Other Related Parties Other accounts payable		Dec. 31, 2011 Predecessor		Dec. 31, 2011 Predecessor CrossCountry Citrus	Dec. 31, 2011 Predecessor Southern Union	Dec. 31, 2011 Predecessor Southern Union Income taxes payable		Dec. 31, 2011 Predecessor Southern Union Other accounts payable		Dec. 31, 2011 Predecessor Other Related Parties Other accounts payable
Related Party Transactions
Current - CrossCountry Citrus	$ 0		$ 0								$ 342,386,000		$ 342,386,000
Noncurrent - Southern Union	772,580,000			772,580,000							688,330,000			688,330,000
Accounts receivable - related parties	5,076,000	[1]									6,319,000	[1]
Accounts payable - related parties	28,541,000				3,585,000	[2]	24,787,000	[3]	169,000	[4]	52,055,000				33,148,000	[2]	18,729,000	[3]	178,000	[4]
Insurance Proceeds, Related Parties																	$ 2,200,000	[3]

[1] Primarily related to services provided for Citrus, MGE and other affiliates. The December 31, 2011 balance also includes interest income associated with the Note receivable – CrossCountry Citrus.

[2] Related to income taxes payable to Southern Union per the tax sharing agreement to provide for taxes to be remitted upon the filing of the tax return.

[3] Primarily related to payroll funding including Merger-related expenses, provided by Southern Union. The December 31, 2011 amount is net of insurance proceeds of $2.2 million owed by Southern Union to the Company.

[4] Primarily related to various administrative and operating costs paid by other affiliate companies on behalf of the Company.