Employee Benefit Plans (Details) (USD $)	3 Months Ended	9 Months Ended	1 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		1 Months Ended	9 Months Ended
	Jul. 31, 2014	Jul. 31, 2014	Nov. 30, 2013 Qualified Pension Plan [Member]	Jul. 31, 2014 Qualified Pension Plan [Member]	Jul. 31, 2013 Qualified Pension Plan [Member]	Jul. 31, 2014 Qualified Pension Plan [Member]	Jul. 31, 2013 Qualified Pension Plan [Member]	Jul. 31, 2014 Non Qualified Pension [Member]	Jul. 31, 2013 Non Qualified Pension [Member]	Jul. 31, 2014 Non Qualified Pension [Member]	Jul. 31, 2013 Non Qualified Pension [Member]	Jul. 31, 2014 Other Postretirement Benefit Plan [Member]	Jul. 31, 2013 Other Postretirement Benefit Plan [Member]	Jul. 31, 2014 Other Postretirement Benefit Plan [Member]	Jul. 31, 2013 Other Postretirement Benefit Plan [Member]	Jan. 31, 2014 Pension Plan [Member] MPP Plan [Member]	Jul. 31, 2014 Other Postretirement Benefit Plan [Member] DCR Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Employer contribution to money purchase pension plan																$ 900,000	$ 500,000
VDP Employer Contribution		0
Deferred compensation plan liability	4,300,000
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost				2,600,000	2,704,000	8,100,000	9,004,000	0	0	0	0	277,000	332,000	831,000	995,000
Interest cost				2,950,000	2,509,000	8,850,000	7,459,000	45,000	39,000	135,000	118,000	362,000	282,000	1,086,000	848,000
Expected return on plan assets				(5,475,000)	(5,229,000)	(16,875,000)	(15,829,000)	0	0	0	0	(457,000)	(416,000)	(1,372,000)	(1,247,000)
Amortization of transition obligation				0	0	0	0	0	0	0	0	0	167,000	0	500,000
Amortization of prior service (credit) cost				(550,000)	(548,000)	(1,650,000)	(1,648,000)	20,000	21,000	61,000	61,000	0	0	0	0
Amortization of actuarial loss				2,025,000	2,901,000	5,775,000	8,401,000	12,000	40,000	35,000	120,000	0	0	0	0
Total				1,550,000	2,337,000	4,200,000	7,387,000	77,000	100,000	231,000	299,000	182,000	365,000	545,000	1,096,000
Additional contribution amounts								112,000				1,500,000
Employer contribution amount			$ 20,000,000							$ 300,000