Equity Method Investments (Details) (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013	Oct. 31, 2013
Schedule of Equity Method Investments [Line Items]
Contributions to equity method investments			$ 31,872,000	$ 15,008,000
Cardinal Pipeline Company [Member]
Schedule of Equity Method Investments [Line Items]
Membership interest percentage	21.49%		21.49%
Related party costs	2,204,000	2,240,000	6,607,000	6,534,000
Trade accounts payable	747,000		747,000		755,000
Pine Needle Company [Member]
Schedule of Equity Method Investments [Line Items]
Membership interest percentage	45.00%		45.00%
Related party costs	2,935,000	2,791,000	8,429,000	8,307,000
Trade accounts payable	989,000		989,000		940,000
South Star Energy Services [Member]
Schedule of Equity Method Investments [Line Items]
Membership interest percentage	15.00%		15.00%
Trade accounts receivable	432,000		432,000		441,000
Operating revenues	1,402,000	1,469,000	2,309,000	2,053,000
Hardy Storage [Member]
Schedule of Equity Method Investments [Line Items]
Membership interest percentage	50.00%		50.00%
Related party costs	2,322,000	2,425,000	7,139,000	7,276,000
Trade accounts payable	774,000		774,000		808,000
Constitution Pipeline Company [Member]
Schedule of Equity Method Investments [Line Items]
Membership interest percentage	24.00%		24.00%
Contributions to equity method investments	13,300,000		31,900,000
Total equity contribution for the project	$ 47,800,000		$ 47,800,000